Weather in Grand Cayman
What's the weather like in Grand Cayman?
Grand Cayman has warm year-round and moderate rainfall spread across the year. Average daytime highs range from 27°C (81°F) in January to 31°C (87°F) in July, with overnight lows around 25°C (76°F) and 27°C (81°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Grand Cayman are January through March, and December.
Quick facts
- Country
- 🇰🇾 Cayman Islands
- Region
- Caribbean
- Time zone
- America/Cayman
- Coordinates
- 19.313, -81.255
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 27°C / 81°F | 25°C / 76°F | 41 mm | 24 | — |
| February | 27°C / 81°F | 25°C / 76°F | 37 mm | 23 | — |
| March | 28°C / 82°F | 25°C / 76°F | 50 mm | 24 | — |
| April | 29°C / 84°F | 25°C / 78°F | 48 mm | 24 | — |
| May | 29°C / 85°F | 26°C / 78°F | 120 mm | 29 | — |
| June | 30°C / 86°F | 27°C / 80°F | 120 mm | 26 | — |
| July | 31°C / 87°F | 27°C / 81°F | 54 mm | 29 | — |
| August | 31°C / 88°F | 27°C / 81°F | 100 mm | 28 | — |
| September | 31°C / 87°F | 27°C / 81°F | 104 mm | 28 | — |
| October | 30°C / 85°F | 26°C / 80°F | 155 mm | 28 | — |
| November | 29°C / 83°F | 26°C / 78°F | 104 mm | 26 | — |
| December | 28°C / 82°F | 25°C / 78°F | 51 mm | 23 | — |
Grand Cayman by month
Detailed weather for any specific month:
Seasonal patterns to know
Atlantic hurricane season runs June–November (peak August–October). Tropical storms and hurricanes are possible — peak risk is August–October.
Cities with a similar climate to Grand Cayman
Frequently asked questions
When is the best time to visit Grand Cayman?
The most comfortable months in Grand Cayman are usually January, February, December, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Grand Cayman?
August is typically the hottest month in Grand Cayman, averaging a high of 31°C (88°F).
What is the coldest month in Grand Cayman?
January is usually the coldest, with average lows around 25°C (76°F).
Does it snow in Grand Cayman?
Snow is rare in Grand Cayman; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.