Cayman Islands climate guide

Temperature in Cayman Islands (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
29°C maximum daytime temperature in January in Cayman Islands (George Town)29
29°C maximum daytime temperature in February in Cayman Islands (George Town)29
30°C maximum daytime temperature in March in Cayman Islands (George Town)30
31°C maximum daytime temperature in April in Cayman Islands (George Town)31
31°C maximum daytime temperature in May in Cayman Islands (George Town)31
32°C maximum daytime temperature in June in Cayman Islands (George Town)32
32°C maximum daytime temperature in July in Cayman Islands (George Town)32
32°C maximum daytime temperature in August in Cayman Islands (George Town)32
32°C maximum daytime temperature in September in Cayman Islands (George Town)32
31°C maximum daytime temperature in October in Cayman Islands (George Town)31
30°C maximum daytime temperature in November in Cayman Islands (George Town)30
29°C maximum daytime temperature in December in Cayman Islands (George Town)29
Min temperature (night-time)
22°C minimum night-time temperature in January in Cayman Islands (George Town)22
22°C minimum night-time temperature in February in Cayman Islands (George Town)22
22°C minimum night-time temperature in March in Cayman Islands (George Town)22
23°C minimum night-time temperature in April in Cayman Islands (George Town)23
24°C minimum night-time temperature in May in Cayman Islands (George Town)24
25°C minimum night-time temperature in June in Cayman Islands (George Town)25
25°C minimum night-time temperature in July in Cayman Islands (George Town)25
25°C minimum night-time temperature in August in Cayman Islands (George Town)25
25°C minimum night-time temperature in September in Cayman Islands (George Town)25
25°C minimum night-time temperature in October in Cayman Islands (George Town)25
24°C minimum night-time temperature in November in Cayman Islands (George Town)24
23°C minimum night-time temperature in December in Cayman Islands (George Town)23
Sea temperature
27°C sea temperature in January in Cayman Islands (George Town)27
26°C sea temperature in February in Cayman Islands (George Town)26
26°C sea temperature in March in Cayman Islands (George Town)26
27°C sea temperature in April in Cayman Islands (George Town)27
28°C sea temperature in May in Cayman Islands (George Town)28
28°C sea temperature in June in Cayman Islands (George Town)28
29°C sea temperature in July in Cayman Islands (George Town)29
29°C sea temperature in August in Cayman Islands (George Town)29
30°C sea temperature in September in Cayman Islands (George Town)30
29°C sea temperature in October in Cayman Islands (George Town)29
28°C sea temperature in November in Cayman Islands (George Town)28
27°C sea temperature in December in Cayman Islands (George Town)27

Sunshine & Daylight in Cayman Islands

  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 Cayman Islands (George Town)11
12 hours of daylight per day in February in Cayman Islands (George Town)12
12 hours of daylight per day in March in Cayman Islands (George Town)12
13 hours of daylight per day in April in Cayman Islands (George Town)13
13 hours of daylight per day in May in Cayman Islands (George Town)13
13 hours of daylight per day in June in Cayman Islands (George Town)13
13 hours of daylight per day in July in Cayman Islands (George Town)13
13 hours of daylight per day in August in Cayman Islands (George Town)13
12 hours of daylight per day in September in Cayman Islands (George Town)12
12 hours of daylight per day in October in Cayman Islands (George Town)12
11 hours of daylight per day in November in Cayman Islands (George Town)11
11 hours of daylight per day in December in Cayman Islands (George Town)11

Rainfall in Cayman Islands

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
11 days with some rainfall in January in Cayman Islands (George Town)11
8 days with some rainfall in February in Cayman Islands (George Town)8
7 days with some rainfall in March in Cayman Islands (George Town)7
6 days with some rainfall in April in Cayman Islands (George Town)6
11 days with some rainfall in May in Cayman Islands (George Town)11
15 days with some rainfall in June in Cayman Islands (George Town)15
15 days with some rainfall in July in Cayman Islands (George Town)15
15 days with some rainfall in August in Cayman Islands (George Town)15
16 days with some rainfall in September in Cayman Islands (George Town)16
17 days with some rainfall in October in Cayman Islands (George Town)17
13 days with some rainfall in November in Cayman Islands (George Town)13
12 days with some rainfall in December in Cayman Islands (George Town)12
Average monthly rainfall (mm)
56 mm monthly rainfall in January in Cayman Islands (George Town)56
44 mm monthly rainfall in February in Cayman Islands (George Town)44
32 mm monthly rainfall in March in Cayman Islands (George Town)32
48 mm monthly rainfall in April in Cayman Islands (George Town)48
132 mm monthly rainfall in May in Cayman Islands (George Town)132
184 mm monthly rainfall in June in Cayman Islands (George Town)184
176 mm monthly rainfall in July in Cayman Islands (George Town)176
171 mm monthly rainfall in August in Cayman Islands (George Town)171
208 mm monthly rainfall in September in Cayman Islands (George Town)208
234 mm monthly rainfall in October in Cayman Islands (George Town)234
118 mm monthly rainfall in November in Cayman Islands (George Town)118
57 mm monthly rainfall in December in Cayman Islands (George Town)57

More climate for Cayman Islands

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 8 (Very High) in January in Cayman Islands (George Town)8
UV (maximum) index 10 (Very High) in February in Cayman Islands (George Town)10
UV (maximum) index 11+ (Extreme) in March in Cayman Islands (George Town)11
UV (maximum) index 11+ (Extreme) in April in Cayman Islands (George Town)11
UV (maximum) index 11+ (Extreme) in May in Cayman Islands (George Town)11
UV (maximum) index 11+ (Extreme) in June in Cayman Islands (George Town)11
UV (maximum) index 11+ (Extreme) in July in Cayman Islands (George Town)11
UV (maximum) index 11+ (Extreme) in August in Cayman Islands (George Town)11
UV (maximum) index 11 (Extreme) in September in Cayman Islands (George Town)11
UV (maximum) index 10 (Very High) in October in Cayman Islands (George Town)10
UV (maximum) index 8 (Very High) in November in Cayman Islands (George Town)8
UV (maximum) index 7 (High) in December in Cayman Islands (George Town)7
Heat & Humidity
Moderate heat & humidity in January in Cayman Islands (George Town)M
Moderate heat & humidity in February in Cayman Islands (George Town)M
High heat & humidity in March in Cayman Islands (George Town)H
High heat & humidity in April in Cayman Islands (George Town)H
Very high heat & humidity in May in Cayman Islands (George Town)VH
Very high heat & humidity in June in Cayman Islands (George Town)VH
Very high heat & humidity in July in Cayman Islands (George Town)VH
Very high heat & humidity in August in Cayman Islands (George Town)VH
Very high heat & humidity in September in Cayman Islands (George Town)VH
Very high heat & humidity in October in Cayman Islands (George Town)VH
High heat & humidity in November in Cayman Islands (George Town)H
High heat & humidity in December in Cayman Islands (George Town)H

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

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The climate guide for Cayman Islands 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.

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

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Cayman Islands climate overview

The Cayman Islands are situated in the Caribbean, nestled halfway between Cuba in the north and the mainland of Central America in the south. Claimed by Britain in the eighteenth century they remain today one of the few British colonies still in existence. The islands have flourished as an offshore banking centre and tax haven, having more financial institutions than New York City.

Famed for its idyllic coastline, the Cayman Islands are home to some of the most beautiful beaches in the whole of the Caribbean. Seven Mile Beach on Grand Cayman is particularly well renowned. However the brochure-perfect combination of white sand, palm trees, and blue sea also attracts many tourists, so the most popular beach settings have become well developed with hotels and shops.

Contrasting with sandy beaches are the sea cliffs on Cayman Brac. These spectacular white limestone rock-faces are riddled with caves.

Scuba diving and snorkelling is popular throughout the Cayman Islands with plenty of coral and colourful marine life. Underwater nature reserves have also been established to preserve the outstanding natural beauty.

The tropical climate has a winter dry season running from December to April although even during this time, an occasional shower is possible. The rainy summer season lasts from May to November when heavy tropical showers develop, many of which turn thundery. Summer daytime temperatures remain hot throughout the islands and only fall a few degrees during the winter months. Occasional hurricanes are possible from July to October.

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