George Town climate — normals and trends
George Town (Cayman Islands) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.6 °C and it receives 978 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (28.1 °C on average) and the coldest is January (25.1 °C). Rainfall peaks in October.
George Town averages 0 frost days, 2 hot days (≥ 30 °C) and 154 rainy days per year.
George Town has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.8 °C (on 24 August 1964) and the coldest 18.9 °C (on 13 January 1981).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
George TownGeorge Town
- coords
- 19.29°, -81.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.6°C
Average daily high
27.3°C
Average daily low
25.8°C
Annual rainfall
978mm
Sunshine / day
11.1h
Mean relative humidity
79%
Average peak wind
27.1km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
154 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.6 °C
Average feels-like low
27.6 °C
Average peak gust
37.3 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
20.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.48 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
30.8 °C
24 August 1964
Coldest day
18.9 °C
13 January 1981
Wettest day
292 mm
12 September 2004
Windiest day
137.5 km/h
12 September 2004
Strongest gust
195.1 km/h
12 September 2004
Hottest feels-like
39.0 °C
31 August 2023
Coldest feels-like
13.9 °C
10 January 1970
Sunniest day
13.0 h
5 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 26.6 °C | +0.9 °C | 11 mm | -24 mm |
| Feb | 26.7 °C | +1.0 °C | 14 mm | -10 mm |
| Mar | 27.0 °C | +1.0 °C | 9 mm | -11 mm |
| Apr | 27.1 °C | +0.4 °C | 37 mm | +15 mm |
| May | 28.5 °C | +1.1 °C | 13 mm | -78 mm |
| Jun | 29.0 °C | +0.9 °C | 69 mm | -48 mm |
| Jul | 29.5 °C | +0.9 °C | 28 mm | -43 mm |
| Aug | 29.9 °C | +1.1 °C | 36 mm | -56 mm |
| Sep | 29.9 °C | +1.3 °C | 60 mm | -85 mm |
| Oct | 29.0 °C | +1.0 °C | 133 mm | -58 mm |
| Nov | 27.8 °C | +0.6 °C | 95 mm | -23 mm |
| Dec | 27.4 °C | +1.0 °C | 28 mm | -24 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of George Town?
George Town has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.6 °C and it receives 978 mm of precipitation per year.
What is the hottest day ever recorded in George Town?
The hottest day measured in George Town between 1940 and 2025 was 24 August 1964, reaching 30.8 °C.
What is the coldest day in George Town?
The coldest day measured in George Town between 1940 and 2025 was 13 January 1981, at 18.9 °C.
Does it snow in George Town?
Almost never: George Town sees virtually no snow, with about 0 frost days per year.
Has the climate of George Town warmed?
Yes: George Town warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in George Town?
The wettest day measured in George Town between 1940 and 2025 was 12 September 2004, with 292 mm of rain in 24 hours.
What was the windiest day in George Town?
The windiest day measured in George Town between 1940 and 2025 was 12 September 2004, with winds reaching 137.5 km/h.
What is the warmest month in George Town?
The warmest month in George Town is August (28.1 °C on average); the coldest is January (25.1 °C).
How much does it rain in George Town?
George Town receives on average 978 mm of precipitation per year, spread over about 154 rainy days.
Is it sunny in George Town?
George Town gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
Are there tropical nights in George Town?
Yes: George Town has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in George Town?
In George Town, between 1940 and 2025, the highest apparent temperature reached 39.0 °C on 31 August 2023, and the lowest was 13.9 °C on 10 January 1970.
Compare George Town with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around George Town