Key Largo weather by month

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

Temperature in Key Largo (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
75°F maximum daytime temperature in January in Key Largo75
77°F maximum daytime temperature in February in Key Largo77
81°F maximum daytime temperature in March in Key Largo81
82°F maximum daytime temperature in April in Key Largo82
86°F maximum daytime temperature in May in Key Largo86
88°F maximum daytime temperature in June in Key Largo88
90°F maximum daytime temperature in July in Key Largo90
90°F maximum daytime temperature in August in Key Largo90
90°F maximum daytime temperature in September in Key Largo90
86°F maximum daytime temperature in October in Key Largo86
81°F maximum daytime temperature in November in Key Largo81
77°F maximum daytime temperature in December in Key Largo77
Min temperature (night-time)
57°F minimum night-time temperature in January in Key Largo57
57°F minimum night-time temperature in February in Key Largo57
61°F minimum night-time temperature in March in Key Largo61
64°F minimum night-time temperature in April in Key Largo64
70°F minimum night-time temperature in May in Key Largo70
72°F minimum night-time temperature in June in Key Largo72
73°F minimum night-time temperature in July in Key Largo73
73°F minimum night-time temperature in August in Key Largo73
73°F minimum night-time temperature in September in Key Largo73
70°F minimum night-time temperature in October in Key Largo70
64°F minimum night-time temperature in November in Key Largo64
59°F minimum night-time temperature in December in Key Largo59
Heat & Humidity
No heat & humidity in January in Key Largo0
No heat & humidity in February in Key Largo0
Low heat & humidity in March in Key LargoL
Moderate heat & humidity in April in Key LargoM
High heat & humidity in May in Key LargoH
High heat & humidity in June in Key LargoH
Very high heat & humidity in July in Key LargoVH
Very high heat & humidity in August in Key LargoVH
Very high heat & humidity in September in Key LargoVH
High heat & humidity in October in Key LargoH
Moderate heat & humidity in November in Key LargoM
Low heat & humidity in December in Key LargoL
Sea temperature
75°F sea temperature in January in Key Largo75
73°F sea temperature in February in Key Largo73
75°F sea temperature in March in Key Largo75
77°F sea temperature in April in Key Largo77
81°F sea temperature in May in Key Largo81
84°F sea temperature in June in Key Largo84
84°F sea temperature in July in Key Largo84
86°F sea temperature in August in Key Largo86
84°F sea temperature in September in Key Largo84
82°F sea temperature in October in Key Largo82
79°F sea temperature in November in Key Largo79
77°F sea temperature in December in Key Largo77

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

Sunshine & UV index in Key Largo

  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 Key Largo11
11 hours of daylight per day in February in Key Largo11
12 hours of daylight per day in March in Key Largo12
13 hours of daylight per day in April in Key Largo13
13 hours of daylight per day in May in Key Largo13
14 hours of daylight per day in June in Key Largo14
14 hours of daylight per day in July in Key Largo14
13 hours of daylight per day in August in Key Largo13
12 hours of daylight per day in September in Key Largo12
12 hours of daylight per day in October in Key Largo12
11 hours of daylight per day in November in Key Largo11
11 hours of daylight per day in December in Key Largo11
UV Index (Maximum)
UV (maximum) index 6 (High) in January in Key Largo6
UV (maximum) index 8 (Very High) in February in Key Largo8
UV (maximum) index 10 (Very High) in March in Key Largo10
UV (maximum) index 11 (Extreme) in April in Key Largo11
UV (maximum) index 11 (Extreme) in May in Key Largo11
UV (maximum) index 11 (Extreme) in June in Key Largo11
UV (maximum) index 11 (Extreme) in July in Key Largo11
UV (maximum) index 11 (Extreme) in August in Key Largo11
UV (maximum) index 10 (Very High) in September in Key Largo10
UV (maximum) index 8 (Very High) in October in Key Largo8
UV (maximum) index 6 (High) in November in Key Largo6
UV (maximum) index 5 (Moderate) in December in Key Largo5

Rainfall in Key Largo

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
7 days with some rainfall in January in Key Largo7
6 days with some rainfall in February in Key Largo6
6 days with some rainfall in March in Key Largo6
5 days with some rainfall in April in Key Largo5
10 days with some rainfall in May in Key Largo10
15 days with some rainfall in June in Key Largo15
15 days with some rainfall in July in Key Largo15
17 days with some rainfall in August in Key Largo17
17 days with some rainfall in September in Key Largo17
13 days with some rainfall in October in Key Largo13
9 days with some rainfall in November in Key Largo9
6 days with some rainfall in December in Key Largo6
Average monthly rainfall (inches)
2.0 inches monthly rainfall in January in Key Largo2.0
1.9 inches monthly rainfall in February in Key Largo1.9
2.2 inches monthly rainfall in March in Key Largo2.2
2.4 inches monthly rainfall in April in Key Largo2.4
6.6 inches monthly rainfall in May in Key Largo6.6
10.0 inches monthly rainfall in June in Key Largo10.0
5.9 inches monthly rainfall in July in Key Largo5.9
6.5 inches monthly rainfall in August in Key Largo6.5
8.4 inches monthly rainfall in September in Key Largo8.4
7.0 inches monthly rainfall in October in Key Largo7.0
2.2 inches monthly rainfall in November in Key Largo2.2
1.4 inches monthly rainfall in December in Key Largo1.4

More about Key Largo

Key Largo by month

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

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The climate guide for Florida (Key Largo) 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 Key Largo?

Key Largo has a hot tropical climate with a winter dry season.

Key Largo weather in January

Expect daytime maximum temperatures of 75°F in Key Largo, Florida in January based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.0 inches of rainfall in the month.

  • 75°F maximum daytime temperature in January in Key Largo75
    75°F max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in January in Key Largo7
    7 days with some rainfall
  • 57°F minimum night-time temperature in January in Key Largo57
    57°F min night temperature
  • 11 hours of daylight per day in January in Key Largo11
    11 hours of daylight per day
  • No heat & humidity in January in Key Largo0
    No heat & humidity
  • 2.0 inches monthly rainfall in January in Key Largo2.0
    2.0 inches of monthly rainfall
  • UV (maximum) index 6 (High) in January in Key Largo6
    6 (High) UV index
  • 75°F sea temperature in January in Key Largo75
    75°F sea temperature

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Key Largo weather in February

Expect daytime maximum temperatures of 77°F in Key Largo, Florida in February based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 1.9 inches of rainfall in the month.

  • 77°F maximum daytime temperature in February in Key Largo77
    77°F max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in February in Key Largo6
    6 days with some rainfall
  • 57°F minimum night-time temperature in February in Key Largo57
    57°F min night temperature
  • 11 hours of daylight per day in February in Key Largo11
    11 hours of daylight per day
  • No heat & humidity in February in Key Largo0
    No heat & humidity
  • 1.9 inches monthly rainfall in February in Key Largo1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in February in Key Largo8
    8 (Very High) UV index
  • 73°F sea temperature in February in Key Largo73
    73°F sea temperature

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Key Largo weather in March

Expect daytime maximum temperatures of 81°F in Key Largo, Florida in March based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 2.2 inches of rainfall in the month.

  • 81°F maximum daytime temperature in March in Key Largo81
    81°F max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in March in Key Largo6
    6 days with some rainfall
  • 61°F minimum night-time temperature in March in Key Largo61
    61°F min night temperature
  • 12 hours of daylight per day in March in Key Largo12
    12 hours of daylight per day
  • Low heat & humidity in March in Key LargoL
    Low heat & humidity
  • 2.2 inches monthly rainfall in March in Key Largo2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in March in Key Largo10
    10 (Very High) UV index
  • 75°F sea temperature in March in Key Largo75
    75°F sea temperature

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Key Largo weather in April

Expect daytime maximum temperatures of 82°F in Key Largo, Florida in April based on long-term weather averages. There are 10 hours of sunshine per day on average with typically 2.4 inches of rainfall in the month.

  • 82°F maximum daytime temperature in April in Key Largo82
    82°F max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in April in Key Largo5
    5 days with some rainfall
  • 64°F minimum night-time temperature in April in Key Largo64
    64°F min night temperature
  • 13 hours of daylight per day in April in Key Largo13
    13 hours of daylight per day
  • Moderate heat & humidity in April in Key LargoM
    Moderate heat & humidity
  • 2.4 inches monthly rainfall in April in Key Largo2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in April in Key Largo11
    11 (Extreme) UV index
  • 77°F sea temperature in April in Key Largo77
    77°F sea temperature

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Key Largo weather in May

Expect daytime maximum temperatures of 86°F in Key Largo, Florida in May and high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with 10 days with some rainfall and typically 6.6 inches of rainfall in the month.

  • 86°F maximum daytime temperature in May in Key Largo86
    86°F max day temperature
  • 10 hours of sunshine per day
  • 10 days with some rainfall in May in Key Largo10
    10 days with some rainfall
  • 70°F minimum night-time temperature in May in Key Largo70
    70°F min night temperature
  • 13 hours of daylight per day in May in Key Largo13
    13 hours of daylight per day
  • High heat & humidity in May in Key LargoH
    High heat & humidity
  • 6.6 inches monthly rainfall in May in Key Largo6.6
    6.6 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Key Largo11
    11 (Extreme) UV index
  • 81°F sea temperature in May in Key Largo81
    81°F sea temperature

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Key Largo weather in June

Expect daytime maximum temperatures of 88°F in Key Largo, Florida in June and high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with 15 days with some rainfall and typically 10.0 inches of rainfall in the month.

  • 88°F maximum daytime temperature in June in Key Largo88
    88°F max day temperature
  • 10 hours of sunshine per day
  • 15 days with some rainfall in June in Key Largo15
    15 days with some rainfall
  • 72°F minimum night-time temperature in June in Key Largo72
    72°F min night temperature
  • 14 hours of daylight per day in June in Key Largo14
    14 hours of daylight per day
  • High heat & humidity in June in Key LargoH
    High heat & humidity
  • 10.0 inches monthly rainfall in June in Key Largo10.0
    10.0 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in June in Key Largo11
    11 (Extreme) UV index
  • 84°F sea temperature in June in Key Largo84
    84°F sea temperature

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Key Largo weather in July

Expect daytime maximum temperatures of 90°F in Key Largo, Florida in July and very high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average with 15 days with some rainfall and typically 5.9 inches of rainfall in the month.

  • 90°F maximum daytime temperature in July in Key Largo90
    90°F max day temperature
  • 10 hours of sunshine per day
  • 15 days with some rainfall in July in Key Largo15
    15 days with some rainfall
  • 73°F minimum night-time temperature in July in Key Largo73
    73°F min night temperature
  • 14 hours of daylight per day in July in Key Largo14
    14 hours of daylight per day
  • Very high heat & humidity in July in Key LargoVH
    Very High heat & humidity
  • 5.9 inches monthly rainfall in July in Key Largo5.9
    5.9 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in July in Key Largo11
    11 (Extreme) UV index
  • 84°F sea temperature in July in Key Largo84
    84°F sea temperature

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Key Largo weather in August

Expect daytime maximum temperatures of 90°F in Key Largo, Florida 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 17 days with some rainfall and typically 6.5 inches of rainfall in the month.

  • 90°F maximum daytime temperature in August in Key Largo90
    90°F max day temperature
  • 9 hours of sunshine per day
  • 17 days with some rainfall in August in Key Largo17
    17 days with some rainfall
  • 73°F minimum night-time temperature in August in Key Largo73
    73°F min night temperature
  • 13 hours of daylight per day in August in Key Largo13
    13 hours of daylight per day
  • Very high heat & humidity in August in Key LargoVH
    Very High heat & humidity
  • 6.5 inches monthly rainfall in August in Key Largo6.5
    6.5 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Key Largo11
    11 (Extreme) UV index
  • 86°F sea temperature in August in Key Largo86
    86°F sea temperature

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Key Largo weather in September

Expect daytime maximum temperatures of 90°F in Key Largo, Florida in September and very high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with 17 days with some rainfall and typically 8.4 inches of rainfall in the month.

  • 90°F maximum daytime temperature in September in Key Largo90
    90°F max day temperature
  • 9 hours of sunshine per day
  • 17 days with some rainfall in September in Key Largo17
    17 days with some rainfall
  • 73°F minimum night-time temperature in September in Key Largo73
    73°F min night temperature
  • 12 hours of daylight per day in September in Key Largo12
    12 hours of daylight per day
  • Very high heat & humidity in September in Key LargoVH
    Very High heat & humidity
  • 8.4 inches monthly rainfall in September in Key Largo8.4
    8.4 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Key Largo10
    10 (Very High) UV index
  • 84°F sea temperature in September in Key Largo84
    84°F sea temperature

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Key Largo weather in October

Expect daytime maximum temperatures of 86°F in Key Largo, Florida in October and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 7.0 inches of rainfall in the month.

  • 86°F maximum daytime temperature in October in Key Largo86
    86°F max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in October in Key Largo13
    13 days with some rainfall
  • 70°F minimum night-time temperature in October in Key Largo70
    70°F min night temperature
  • 12 hours of daylight per day in October in Key Largo12
    12 hours of daylight per day
  • High heat & humidity in October in Key LargoH
    High heat & humidity
  • 7.0 inches monthly rainfall in October in Key Largo7.0
    7.0 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in October in Key Largo8
    8 (Very High) UV index
  • 82°F sea temperature in October in Key Largo82
    82°F sea temperature

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Key Largo weather in November

Expect daytime maximum temperatures of 81°F in Key Largo, Florida in November based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.2 inches of rainfall in the month.

  • 81°F maximum daytime temperature in November in Key Largo81
    81°F max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in November in Key Largo9
    9 days with some rainfall
  • 64°F minimum night-time temperature in November in Key Largo64
    64°F min night temperature
  • 11 hours of daylight per day in November in Key Largo11
    11 hours of daylight per day
  • Moderate heat & humidity in November in Key LargoM
    Moderate heat & humidity
  • 2.2 inches monthly rainfall in November in Key Largo2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in November in Key Largo6
    6 (High) UV index
  • 79°F sea temperature in November in Key Largo79
    79°F sea temperature

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Key Largo weather in December

Expect daytime maximum temperatures of 77°F in Key Largo, Florida in December based on long-term weather averages. There are 7 hours of sunshine per day on average.

  • 77°F maximum daytime temperature in December in Key Largo77
    77°F max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in December in Key Largo6
    6 days with some rainfall
  • 59°F minimum night-time temperature in December in Key Largo59
    59°F min night temperature
  • 11 hours of daylight per day in December in Key Largo11
    11 hours of daylight per day
  • Low heat & humidity in December in Key LargoL
    Low heat & humidity
  • 1.4 inches monthly rainfall in December in Key Largo1.4
    1.4 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in December in Key Largo5
    5 (Moderate) UV index
  • 77°F sea temperature in December in Key Largo77
    77°F sea temperature

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More about Key Largo

Key Largo by month

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

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The climate guide for Florida (Key Largo) 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.

Tropical storm risk: Key Largo, Florida hurricane season

% of month affected by tropical storms
0
0
0
0
0
1.8%
0
2.9%
2.8%
2.3%
<1%
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare Key Largo weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Key Largo, Florida, USA and the UK (London).

Maximum daytime temperature (°F)

Key Largo, Florida, USA
UK (London)
75
45
77
45
81
50
82
55
86
63
88
68
90
72
90
72
90
66
86
59
81
50
77
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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