George Town in Summer
In summer (June, July and August), George Town sees average daytime highs around 29°C and overnight lows near 27°C, with 252 mm of rain over about 41 wet days across the season. It is the warmest season of the year and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 41% of the time across summer, and the air most often feels miserable.
Summer is George Town's 3rd-best season to visit on our travel score. George Town has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see George Town's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 252 mm
- 41 wet days
- Avg wind
- 20 km/h
- Travel score
- 5.2
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in George Town in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in George Town reaches about 29°C and drops to 27°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in George Town
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
George Town weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 25° | 31 | 7.1 | 11 | 7.6 |
| Feb | 26° / 25° | 15 | 3.8 | 11.3 | 8.2 |
| Mar | 26° / 25° | 19 | 4.5 | 11.9 | 8.2 |
| Apr | 27° / 26° | 18 | 4.4 | 12.4 | 7.9 |
| May | 28° / 26° | 97 | 11.9 | 12.9 | 6.4 |
| Jun | 28° / 27° | 102 | 13.7 | 13.1 | 5.3 |
| Jul | 29° / 27° | 61 | 12.1 | 13 | 5.4 |
| Aug | 29° / 27° | 89 | 15.2 | 12.7 | 5.0 |
| Sep | 29° / 27° | 141 | 19 | 12.1 | 4.4 |
| Oct | 28° / 27° | 214 | 20.1 | 11.6 | 4.7 |
| Nov | 27° / 26° | 120 | 13 | 11.1 | 6.2 |
| Dec | 27° / 25° | 47 | 9.2 | 10.9 | 7.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 41% of the time across summer.
Chance of precipitation in Summer
George Town gets around 252 mm of rain over 41 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 20 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min in early June to 12 h 24 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.6 kWh/m².
Hazard calendar for George Town
In summer, George Town overlaps its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
George Town sits in the Atlantic hurricane belt; the season peaks August–October.
George Town's rainy season runs September–November, when most of the year's rain falls.
Is summer a good time to visit George Town?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit George Town for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for George Town in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, George Town sees daytime highs around 29°C and nights near 27°C. Pack light clothes, rain gear and sun protection. Worth having: a windbreaker. About 41 days see rain.
Sea temperature near George Town in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 30°C and coldest in February near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 30 | 30 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 27 | Warm |
| Apr | 27 | Warm |
| May | 28 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in George Town in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in George Town peaks around May 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 8 | 10 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 10 | 8 | 7 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 8 | Very high |
| Feb | 10 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Very high |
| Nov | 8 | Very high |
| Dec | 7 | High |
Air quality in George Town in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in George Town is worst in June — around 27 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (January, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 8 | 8 | 10 | 14 | 27 | 24 | 19 | 13 | 10 | 7 | 7 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 8 | Good |
| Mar | 8 | Good |
| Apr | 10 | Good |
| May | 14 | Moderate |
| Jun | 27 | Moderate |
| Jul | 24 | Moderate |
| Aug | 19 | Moderate |
| Sep | 13 | Moderate |
| Oct | 10 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is George Town?
George Town sits at 19.3°N, 81.4°W, 3 m above sea level, in Cayman Islands. The nearest listed city is West Bay, 11 km away.
Topography around George Town
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of George Town.
Within 3 km, the terrain around George Town has only modest variations in elevation — a maximum elevation change of 21 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 21 m; within 80 km, only modest variations in elevation — a maximum elevation change of 24 m.
The land around George Town is covered by water (46%) and artificial surfaces (29%) within 3 km, water (87%) within 16 km, and water (97%) within 80 km.
Cayman Islands travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 113% of US
- price level, 2024
- GDP per capita
- $104,293
- 2024
- Homicide rate
- 4.4
- per 100k, 2020
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for George Town (19.2866°, -81.3744°, elevation 3 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.