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 (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
23°C maximum daytime temperature in January in Treasure Cay23
23°C maximum daytime temperature in February in Treasure Cay23
25°C maximum daytime temperature in March in Treasure Cay25
26°C maximum daytime temperature in April in Treasure Cay26
28°C maximum daytime temperature in May in Treasure Cay28
30°C maximum daytime temperature in June in Treasure Cay30
31°C maximum daytime temperature in July in Treasure Cay31
31°C maximum daytime temperature in August in Treasure Cay31
30°C maximum daytime temperature in September in Treasure Cay30
28°C maximum daytime temperature in October in Treasure Cay28
26°C maximum daytime temperature in November in Treasure Cay26
24°C maximum daytime temperature in December in Treasure Cay24
Min temperature (night-time)
15°C minimum night-time temperature in January in Treasure Cay15
15°C minimum night-time temperature in February in Treasure Cay15
17°C minimum night-time temperature in March in Treasure Cay17
19°C minimum night-time temperature in April in Treasure Cay19
21°C minimum night-time temperature in May in Treasure Cay21
23°C minimum night-time temperature in June in Treasure Cay23
24°C minimum night-time temperature in July in Treasure Cay24
24°C minimum night-time temperature in August in Treasure Cay24
24°C minimum night-time temperature in September in Treasure Cay24
22°C minimum night-time temperature in October in Treasure Cay22
19°C minimum night-time temperature in November in Treasure Cay19
16°C minimum night-time temperature in December in Treasure Cay16
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
23°C sea temperature in January in Treasure Cay23
23°C sea temperature in February in Treasure Cay23
23°C sea temperature in March in Treasure Cay23
24°C sea temperature in April in Treasure Cay24
26°C sea temperature in May in Treasure Cay26
28°C sea temperature in June in Treasure Cay28
29°C sea temperature in July in Treasure Cay29
30°C sea temperature in August in Treasure Cay30
29°C sea temperature in September in Treasure Cay29
27°C sea temperature in October in Treasure Cay27
25°C sea temperature in November in Treasure Cay25
24°C sea temperature in December in Treasure Cay24

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 (mm)
67 mm monthly rainfall in January in Treasure Cay67
74 mm monthly rainfall in February in Treasure Cay74
72 mm monthly rainfall in March in Treasure Cay72
75 mm monthly rainfall in April in Treasure Cay75
140 mm monthly rainfall in May in Treasure Cay140
191 mm monthly rainfall in June in Treasure Cay191
137 mm monthly rainfall in July in Treasure Cay137
146 mm monthly rainfall in August in Treasure Cay146
195 mm monthly rainfall in September in Treasure Cay195
179 mm monthly rainfall in October in Treasure Cay179
76 mm monthly rainfall in November in Treasure Cay76
67 mm monthly rainfall in December in Treasure Cay67

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.

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 23°C 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 67 mm of rainfall in the month.

  • 23°C maximum daytime temperature in January in Treasure Cay23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in January in Treasure Cay12
    12 days with some rainfall
  • 15°C minimum night-time temperature in January in Treasure Cay15
    15°C 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
  • 67 mm monthly rainfall in January in Treasure Cay67
    67 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in January in Treasure Cay5
    5 (Moderate) UV index
  • 23°C sea temperature in January in Treasure Cay23
    23°C sea temperature

Back to months

Treasure Cay weather in February

Expect daytime maximum temperatures of 23°C 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 74 mm of rainfall in the month.

  • 23°C maximum daytime temperature in February in Treasure Cay23
    23°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in February in Treasure Cay10
    10 days with some rainfall
  • 15°C minimum night-time temperature in February in Treasure Cay15
    15°C 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
  • 74 mm monthly rainfall in February in Treasure Cay74
    74 mm of monthly rainfall
  • UV (maximum) index 7 (High) in February in Treasure Cay7
    7 (High) UV index
  • 23°C sea temperature in February in Treasure Cay23
    23°C sea temperature

Back to months

Treasure Cay weather in March

Expect daytime maximum temperatures of 25°C 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 72 mm of rainfall in the month.

  • 25°C maximum daytime temperature in March in Treasure Cay25
    25°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in March in Treasure Cay10
    10 days with some rainfall
  • 17°C minimum night-time temperature in March in Treasure Cay17
    17°C 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
  • 72 mm monthly rainfall in March in Treasure Cay72
    72 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in March in Treasure Cay9
    9 (Very High) UV index
  • 23°C sea temperature in March in Treasure Cay23
    23°C sea temperature

Back to months

Treasure Cay weather in April

Expect daytime maximum temperatures of 26°C in Treasure Cay, Bahamas in April based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 75 mm of rainfall in the month.

  • 26°C maximum daytime temperature in April in Treasure Cay26
    26°C max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in April in Treasure Cay7
    7 days with some rainfall
  • 19°C minimum night-time temperature in April in Treasure Cay19
    19°C 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
  • 75 mm monthly rainfall in April in Treasure Cay75
    75 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in April in Treasure Cay10
    10 (Very High) UV index
  • 24°C sea temperature in April in Treasure Cay24
    24°C sea temperature

Back to months

Treasure Cay weather in May

Expect daytime maximum temperatures of 28°C 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 140 mm of rainfall in the month.

  • 28°C maximum daytime temperature in May in Treasure Cay28
    28°C max day temperature
  • 9 hours of sunshine per day
  • 13 days with some rainfall in May in Treasure Cay13
    13 days with some rainfall
  • 21°C minimum night-time temperature in May in Treasure Cay21
    21°C 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
  • 140 mm monthly rainfall in May in Treasure Cay140
    140 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Treasure Cay11
    11 (Extreme) UV index
  • 26°C sea temperature in May in Treasure Cay26
    26°C sea temperature

Back to months

Treasure Cay weather in June

Expect daytime maximum temperatures of 30°C 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 191 mm of rainfall in the month.

  • 30°C maximum daytime temperature in June in Treasure Cay30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 18 days with some rainfall in June in Treasure Cay18
    18 days with some rainfall
  • 23°C minimum night-time temperature in June in Treasure Cay23
    23°C 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
  • 191 mm monthly rainfall in June in Treasure Cay191
    191 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in June in Treasure Cay11
    11 (Extreme) UV index
  • 28°C sea temperature in June in Treasure Cay28
    28°C sea temperature

Back to months

Treasure Cay weather in July

Expect daytime maximum temperatures of 31°C 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 137 mm of rainfall in the month.

  • 31°C maximum daytime temperature in July in Treasure Cay31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 20 days with some rainfall in July in Treasure Cay20
    20 days with some rainfall
  • 24°C minimum night-time temperature in July in Treasure Cay24
    24°C 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
  • 137 mm monthly rainfall in July in Treasure Cay137
    137 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in July in Treasure Cay11
    11 (Extreme) UV index
  • 29°C sea temperature in July in Treasure Cay29
    29°C sea temperature

Back to months

Treasure Cay weather in August

Expect daytime maximum temperatures of 31°C 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 146 mm of rainfall in the month.

  • 31°C maximum daytime temperature in August in Treasure Cay31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 21 days with some rainfall in August in Treasure Cay21
    21 days with some rainfall
  • 24°C minimum night-time temperature in August in Treasure Cay24
    24°C 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
  • 146 mm monthly rainfall in August in Treasure Cay146
    146 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Treasure Cay11
    11 (Extreme) UV index
  • 30°C sea temperature in August in Treasure Cay30
    30°C sea temperature

Back to months

Treasure Cay weather in September

Expect daytime maximum temperatures of 30°C 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 195 mm of rainfall in the month.

  • 30°C maximum daytime temperature in September in Treasure Cay30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 21 days with some rainfall in September in Treasure Cay21
    21 days with some rainfall
  • 24°C minimum night-time temperature in September in Treasure Cay24
    24°C 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
  • 195 mm monthly rainfall in September in Treasure Cay195
    195 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Treasure Cay10
    10 (Very High) UV index
  • 29°C sea temperature in September in Treasure Cay29
    29°C sea temperature

Back to months

Treasure Cay weather in October

Expect daytime maximum temperatures of 28°C 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 179 mm of rainfall in the month.

  • 28°C maximum daytime temperature in October in Treasure Cay28
    28°C max day temperature
  • 7 hours of sunshine per day
  • 19 days with some rainfall in October in Treasure Cay19
    19 days with some rainfall
  • 22°C minimum night-time temperature in October in Treasure Cay22
    22°C 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
  • 179 mm monthly rainfall in October in Treasure Cay179
    179 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in October in Treasure Cay8
    8 (Very High) UV index
  • 27°C sea temperature in October in Treasure Cay27
    27°C sea temperature

Back to months

Treasure Cay weather in November

Expect daytime maximum temperatures of 26°C 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 76 mm of rainfall in the month.

  • 26°C maximum daytime temperature in November in Treasure Cay26
    26°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in November in Treasure Cay12
    12 days with some rainfall
  • 19°C minimum night-time temperature in November in Treasure Cay19
    19°C 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
  • 76 mm monthly rainfall in November in Treasure Cay76
    76 mm of monthly rainfall
  • UV (maximum) index 6 (High) in November in Treasure Cay6
    6 (High) UV index
  • 25°C sea temperature in November in Treasure Cay25
    25°C sea temperature

Back to months

Treasure Cay weather in December

Expect daytime maximum temperatures of 24°C 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 67 mm of rainfall in the month.

  • 24°C maximum daytime temperature in December in Treasure Cay24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in December in Treasure Cay12
    12 days with some rainfall
  • 16°C minimum night-time temperature in December in Treasure Cay16
    16°C 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
  • 67 mm monthly rainfall in December in Treasure Cay67
    67 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in December in Treasure Cay5
    5 (Moderate) UV index
  • 24°C sea temperature in December in Treasure Cay24
    24°C sea temperature

Back to months

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 / mm)  |  Imperial (°F / inches)

Back to top

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 (°C)

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

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more weather >>

Back to top

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^