Treasure Cay weather by month

Check out Treasure Cay weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Treasure Cay (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
73°F maximum daytime temperature in January in Treasure Cay73
73°F maximum daytime temperature in February in Treasure Cay73
77°F maximum daytime temperature in March in Treasure Cay77
79°F maximum daytime temperature in April in Treasure Cay79
82°F maximum daytime temperature in May in Treasure Cay82
86°F maximum daytime temperature in June in Treasure Cay86
88°F maximum daytime temperature in July in Treasure Cay88
88°F maximum daytime temperature in August in Treasure Cay88
86°F maximum daytime temperature in September in Treasure Cay86
82°F maximum daytime temperature in October in Treasure Cay82
79°F maximum daytime temperature in November in Treasure Cay79
75°F maximum daytime temperature in December in Treasure Cay75
Min temperature (night-time)
59°F minimum night-time temperature in January in Treasure Cay59
59°F minimum night-time temperature in February in Treasure Cay59
63°F minimum night-time temperature in March in Treasure Cay63
66°F minimum night-time temperature in April in Treasure Cay66
70°F minimum night-time temperature in May in Treasure Cay70
73°F minimum night-time temperature in June in Treasure Cay73
75°F minimum night-time temperature in July in Treasure Cay75
75°F minimum night-time temperature in August in Treasure Cay75
75°F minimum night-time temperature in September in Treasure Cay75
72°F minimum night-time temperature in October in Treasure Cay72
66°F minimum night-time temperature in November in Treasure Cay66
61°F minimum night-time temperature in December in Treasure Cay61
Heat & Humidity
No heat & humidity in January in Treasure Cay0
No heat & humidity in February in Treasure Cay0
Low heat & humidity in March in Treasure CayL
Moderate heat & humidity in April in Treasure CayM
Moderate heat & humidity in May in Treasure CayM
High heat & humidity in June in Treasure CayH
Very high heat & humidity in July in Treasure CayVH
Very high heat & humidity in August in Treasure CayVH
High heat & humidity in September in Treasure CayH
Moderate heat & humidity in October in Treasure CayM
Low heat & humidity in November in Treasure CayL
Low heat & humidity in December in Treasure CayL
Sea temperature
73°F sea temperature in January in Treasure Cay73
73°F sea temperature in February in Treasure Cay73
73°F sea temperature in March in Treasure Cay73
75°F sea temperature in April in Treasure Cay75
79°F sea temperature in May in Treasure Cay79
82°F sea temperature in June in Treasure Cay82
84°F sea temperature in July in Treasure Cay84
86°F sea temperature in August in Treasure Cay86
84°F sea temperature in September in Treasure Cay84
81°F sea temperature in October in Treasure Cay81
77°F sea temperature in November in Treasure Cay77
75°F sea temperature in December in Treasure Cay75

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Treasure Cay

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Treasure Cay11
11 hours of daylight per day in February in Treasure Cay11
12 hours of daylight per day in March in Treasure Cay12
13 hours of daylight per day in April in Treasure Cay13
13 hours of daylight per day in May in Treasure Cay13
14 hours of daylight per day in June in Treasure Cay14
14 hours of daylight per day in July in Treasure Cay14
13 hours of daylight per day in August in Treasure Cay13
12 hours of daylight per day in September in Treasure Cay12
12 hours of daylight per day in October in Treasure Cay12
11 hours of daylight per day in November in Treasure Cay11
10 hours of daylight per day in December in Treasure Cay10
UV Index (Maximum)
UV (maximum) index 5 (Moderate) in January in Treasure Cay5
UV (maximum) index 7 (High) in February in Treasure Cay7
UV (maximum) index 9 (Very High) in March in Treasure Cay9
UV (maximum) index 10 (Very High) in April in Treasure Cay10
UV (maximum) index 11 (Extreme) in May in Treasure Cay11
UV (maximum) index 11 (Extreme) in June in Treasure Cay11
UV (maximum) index 11 (Extreme) in July in Treasure Cay11
UV (maximum) index 11 (Extreme) in August in Treasure Cay11
UV (maximum) index 10 (Very High) in September in Treasure Cay10
UV (maximum) index 8 (Very High) in October in Treasure Cay8
UV (maximum) index 6 (High) in November in Treasure Cay6
UV (maximum) index 5 (Moderate) in December in Treasure Cay5

Rainfall in Treasure Cay

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
12 days with some rainfall in January in Treasure Cay12
10 days with some rainfall in February in Treasure Cay10
10 days with some rainfall in March in Treasure Cay10
7 days with some rainfall in April in Treasure Cay7
13 days with some rainfall in May in Treasure Cay13
18 days with some rainfall in June in Treasure Cay18
20 days with some rainfall in July in Treasure Cay20
21 days with some rainfall in August in Treasure Cay21
21 days with some rainfall in September in Treasure Cay21
19 days with some rainfall in October in Treasure Cay19
12 days with some rainfall in November in Treasure Cay12
12 days with some rainfall in December in Treasure Cay12
Average monthly rainfall (inches)
2.6 inches monthly rainfall in January in Treasure Cay2.6
2.9 inches monthly rainfall in February in Treasure Cay2.9
2.8 inches monthly rainfall in March in Treasure Cay2.8
3.0 inches monthly rainfall in April in Treasure Cay3.0
5.5 inches monthly rainfall in May in Treasure Cay5.5
7.5 inches monthly rainfall in June in Treasure Cay7.5
5.4 inches monthly rainfall in July in Treasure Cay5.4
5.7 inches monthly rainfall in August in Treasure Cay5.7
7.7 inches monthly rainfall in September in Treasure Cay7.7
7.0 inches monthly rainfall in October in Treasure Cay7.0
3.0 inches monthly rainfall in November in Treasure Cay3.0
2.6 inches monthly rainfall in December in Treasure Cay2.6

More about the Treasure Cay

Treasure Cay by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Bahamas (Treasure Cay) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Treasure Cay?

Treasure Cay has a hot tropical climate with a short dry season.

Treasure Cay weather in January

Expect daytime maximum temperatures of 73°F in Treasure Cay, Bahamas in January based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 2.6 inches of rainfall in the month.

  • 73°F maximum daytime temperature in January in Treasure Cay73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in January in Treasure Cay12
    12 days with some rainfall
  • 59°F minimum night-time temperature in January in Treasure Cay59
    59°F min night temperature
  • 11 hours of daylight per day in January in Treasure Cay11
    11 hours of daylight per day
  • No heat & humidity in January in Treasure Cay0
    No heat & humidity
  • 2.6 inches monthly rainfall in January in Treasure Cay2.6
    2.6 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in January in Treasure Cay5
    5 (Moderate) UV index
  • 73°F sea temperature in January in Treasure Cay73
    73°F sea temperature

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Treasure Cay weather in February

Expect daytime maximum temperatures of 73°F in Treasure Cay, Bahamas in February based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 2.9 inches of rainfall in the month.

  • 73°F maximum daytime temperature in February in Treasure Cay73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in February in Treasure Cay10
    10 days with some rainfall
  • 59°F minimum night-time temperature in February in Treasure Cay59
    59°F min night temperature
  • 11 hours of daylight per day in February in Treasure Cay11
    11 hours of daylight per day
  • No heat & humidity in February in Treasure Cay0
    No heat & humidity
  • 2.9 inches monthly rainfall in February in Treasure Cay2.9
    2.9 inches of monthly rainfall
  • UV (maximum) index 7 (High) in February in Treasure Cay7
    7 (High) UV index
  • 73°F sea temperature in February in Treasure Cay73
    73°F sea temperature

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Treasure Cay weather in March

Expect daytime maximum temperatures of 77°F in Treasure Cay, Bahamas in March based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 2.8 inches of rainfall in the month.

  • 77°F maximum daytime temperature in March in Treasure Cay77
    77°F max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in March in Treasure Cay10
    10 days with some rainfall
  • 63°F minimum night-time temperature in March in Treasure Cay63
    63°F min night temperature
  • 12 hours of daylight per day in March in Treasure Cay12
    12 hours of daylight per day
  • Low heat & humidity in March in Treasure CayL
    Low heat & humidity
  • 2.8 inches monthly rainfall in March in Treasure Cay2.8
    2.8 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in March in Treasure Cay9
    9 (Very High) UV index
  • 73°F sea temperature in March in Treasure Cay73
    73°F sea temperature

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Treasure Cay weather in April

Expect daytime maximum temperatures of 79°F in Treasure Cay, Bahamas in April based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.0 inches of rainfall in the month.

  • 79°F maximum daytime temperature in April in Treasure Cay79
    79°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in April in Treasure Cay7
    7 days with some rainfall
  • 66°F minimum night-time temperature in April in Treasure Cay66
    66°F min night temperature
  • 13 hours of daylight per day in April in Treasure Cay13
    13 hours of daylight per day
  • Moderate heat & humidity in April in Treasure CayM
    Moderate heat & humidity
  • 3.0 inches monthly rainfall in April in Treasure Cay3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in April in Treasure Cay10
    10 (Very High) UV index
  • 75°F sea temperature in April in Treasure Cay75
    75°F sea temperature

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Treasure Cay weather in May

Expect daytime maximum temperatures of 82°F in Treasure Cay, Bahamas in May based on long-term weather averages. There are 9 hours of sunshine per day on average with 13 days with some rainfall and typically 5.5 inches of rainfall in the month.

  • 82°F maximum daytime temperature in May in Treasure Cay82
    82°F max day temperature
  • 9 hours of sunshine per day
  • 13 days with some rainfall in May in Treasure Cay13
    13 days with some rainfall
  • 70°F minimum night-time temperature in May in Treasure Cay70
    70°F min night temperature
  • 13 hours of daylight per day in May in Treasure Cay13
    13 hours of daylight per day
  • Moderate heat & humidity in May in Treasure CayM
    Moderate heat & humidity
  • 5.5 inches monthly rainfall in May in Treasure Cay5.5
    5.5 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Treasure Cay11
    11 (Extreme) UV index
  • 79°F sea temperature in May in Treasure Cay79
    79°F sea temperature

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Treasure Cay weather in June

Expect daytime maximum temperatures of 86°F in Treasure Cay, Bahamas in June and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 18 days with some rainfall and typically 7.5 inches of rainfall in the month.

  • 86°F maximum daytime temperature in June in Treasure Cay86
    86°F max day temperature
  • 8 hours of sunshine per day
  • 18 days with some rainfall in June in Treasure Cay18
    18 days with some rainfall
  • 73°F minimum night-time temperature in June in Treasure Cay73
    73°F min night temperature
  • 14 hours of daylight per day in June in Treasure Cay14
    14 hours of daylight per day
  • High heat & humidity in June in Treasure CayH
    High heat & humidity
  • 7.5 inches monthly rainfall in June in Treasure Cay7.5
    7.5 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in June in Treasure Cay11
    11 (Extreme) UV index
  • 82°F sea temperature in June in Treasure Cay82
    82°F sea temperature

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Treasure Cay weather in July

Expect daytime maximum temperatures of 88°F in Treasure Cay, Bahamas in July and very high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 20 days with some rainfall and typically 5.4 inches of rainfall in the month.

  • 88°F maximum daytime temperature in July in Treasure Cay88
    88°F max day temperature
  • 9 hours of sunshine per day
  • 20 days with some rainfall in July in Treasure Cay20
    20 days with some rainfall
  • 75°F minimum night-time temperature in July in Treasure Cay75
    75°F min night temperature
  • 14 hours of daylight per day in July in Treasure Cay14
    14 hours of daylight per day
  • Very high heat & humidity in July in Treasure CayVH
    Very High heat & humidity
  • 5.4 inches monthly rainfall in July in Treasure Cay5.4
    5.4 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in July in Treasure Cay11
    11 (Extreme) UV index
  • 84°F sea temperature in July in Treasure Cay84
    84°F sea temperature

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Treasure Cay weather in August

Expect daytime maximum temperatures of 88°F in Treasure Cay, Bahamas in August and very high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 21 days with some rainfall and typically 5.7 inches of rainfall in the month.

  • 88°F maximum daytime temperature in August in Treasure Cay88
    88°F max day temperature
  • 9 hours of sunshine per day
  • 21 days with some rainfall in August in Treasure Cay21
    21 days with some rainfall
  • 75°F minimum night-time temperature in August in Treasure Cay75
    75°F min night temperature
  • 13 hours of daylight per day in August in Treasure Cay13
    13 hours of daylight per day
  • Very high heat & humidity in August in Treasure CayVH
    Very High heat & humidity
  • 5.7 inches monthly rainfall in August in Treasure Cay5.7
    5.7 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Treasure Cay11
    11 (Extreme) UV index
  • 86°F sea temperature in August in Treasure Cay86
    86°F sea temperature

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Treasure Cay weather in September

Expect daytime maximum temperatures of 86°F in Treasure Cay, Bahamas in September and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 21 days with some rainfall and typically 7.7 inches of rainfall in the month.

  • 86°F maximum daytime temperature in September in Treasure Cay86
    86°F max day temperature
  • 7 hours of sunshine per day
  • 21 days with some rainfall in September in Treasure Cay21
    21 days with some rainfall
  • 75°F minimum night-time temperature in September in Treasure Cay75
    75°F min night temperature
  • 12 hours of daylight per day in September in Treasure Cay12
    12 hours of daylight per day
  • High heat & humidity in September in Treasure CayH
    High heat & humidity
  • 7.7 inches monthly rainfall in September in Treasure Cay7.7
    7.7 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Treasure Cay10
    10 (Very High) UV index
  • 84°F sea temperature in September in Treasure Cay84
    84°F sea temperature

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Treasure Cay weather in October

Expect daytime maximum temperatures of 82°F in Treasure Cay, Bahamas in October based on long-term weather averages. There are 7 hours of sunshine per day on average with 19 days with some rainfall and typically 7.0 inches of rainfall in the month.

  • 82°F maximum daytime temperature in October in Treasure Cay82
    82°F max day temperature
  • 7 hours of sunshine per day
  • 19 days with some rainfall in October in Treasure Cay19
    19 days with some rainfall
  • 72°F minimum night-time temperature in October in Treasure Cay72
    72°F min night temperature
  • 12 hours of daylight per day in October in Treasure Cay12
    12 hours of daylight per day
  • Moderate heat & humidity in October in Treasure CayM
    Moderate heat & humidity
  • 7.0 inches monthly rainfall in October in Treasure Cay7.0
    7.0 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in October in Treasure Cay8
    8 (Very High) UV index
  • 81°F sea temperature in October in Treasure Cay81
    81°F sea temperature

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Treasure Cay weather in November

Expect daytime maximum temperatures of 79°F in Treasure Cay, Bahamas in November based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 3.0 inches of rainfall in the month.

  • 79°F maximum daytime temperature in November in Treasure Cay79
    79°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in November in Treasure Cay12
    12 days with some rainfall
  • 66°F minimum night-time temperature in November in Treasure Cay66
    66°F min night temperature
  • 11 hours of daylight per day in November in Treasure Cay11
    11 hours of daylight per day
  • Low heat & humidity in November in Treasure CayL
    Low heat & humidity
  • 3.0 inches monthly rainfall in November in Treasure Cay3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 6 (High) in November in Treasure Cay6
    6 (High) UV index
  • 77°F sea temperature in November in Treasure Cay77
    77°F sea temperature

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Treasure Cay weather in December

Expect daytime maximum temperatures of 75°F in Treasure Cay, Bahamas in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 2.6 inches of rainfall in the month.

  • 75°F maximum daytime temperature in December in Treasure Cay75
    75°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in December in Treasure Cay12
    12 days with some rainfall
  • 61°F minimum night-time temperature in December in Treasure Cay61
    61°F min night temperature
  • 10 hours of daylight per day in December in Treasure Cay10
    10 hours of daylight per day
  • Low heat & humidity in December in Treasure CayL
    Low heat & humidity
  • 2.6 inches monthly rainfall in December in Treasure Cay2.6
    2.6 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in December in Treasure Cay5
    5 (Moderate) UV index
  • 75°F sea temperature in December in Treasure Cay75
    75°F sea temperature

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More about the Treasure Cay

Treasure Cay by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for the Bahamas

  • Save up to 55% on Caribbean holiday accommodation
  • Plus save up to £800 off select rooms & durations
  • Extra 5% discount on selected resorts

Expires at 23:59 on Saturday 28th Feb 2026 · View all Sandals offers

SandalsHoliday resort finder

The climate guide for Bahamas (Treasure Cay) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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Compare Treasure Cay weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Treasure Cay, Bahamas and the UK (London).

Maximum daytime temperature (°F)

Treasure Cay, Bahamas
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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