Grand Cayman
August
Weather in Grand Cayman for August 2025
Your guide to Grand Cayman weather in August - trends and predictions
In general, the average temperature in Grand Cayman at the beginning of August is 29.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 29.3 °C by the end of August.
Grand Cayman experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 88.4 mm.
Temperatures
Rain 🌧️
4
Dry days
27
Rainy days
0
Snow days
30°/28°
Temperatures
21 km/h
Avg max wind
74 %
Avg humidity
Grand Cayman Weather August
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Temperatures trend during August in Grand Cayman
See the weather trend as well as the moving average line
August weather in Grand Cayman day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Patchy rain possible | 30° /28° | 0.6 mm | 7 | |
| 2 Aug. |  Moderate or heavy rain shower | 29° /27° | 6.9 mm | 6 | |
| 3 Aug. | Moderate or heavy rain shower | 28° /26° | 16.7 mm | 6 | |
| 4 Aug. | Patchy rain possible | 29° /28° | 0.1 mm | 6 | |
| 5 Aug. | Patchy rain possible | 30° /28° | 0.7 mm | 7 | |
| 6 Aug. | Patchy rain possible | 30° /28° | 1.4 mm | 7 | |
| 7 Aug. | Patchy rain possible | 30° /28° | 1.1 mm | 7 | |
| 8 Aug. | Patchy rain possible | 29° /28° | 0.7 mm | 6 | |
| 9 Aug. | Patchy rain possible | 30° /29° | 0.6 mm | 7 | |
| 10 Aug. | Patchy rain possible | 31° /29° | 0.8 mm | 7 | |
| 11 Aug. | Patchy rain possible | 31° /29° | 0.1 mm | 7 | |
| 12 Aug. | Patchy rain possible | 31° /29° | 0.3 mm | 7 | |
| 13 Aug. | Patchy rain possible | 30° /28° | 1.9 mm | 7 | |
| 14 Aug. | Patchy rain possible | 31° /28° | 0.8 mm | 7 | |
| 15 Aug. | Patchy rain possible | 31° /29° | 0.1 mm | 7 | |
| 16 Aug. | Patchy rain possible | 31° /28° | 1.3 mm | 7 | |
| 17 Aug. | Moderate or heavy rain shower | 30° /28° | 2.1 mm | 7 | |
| 18 Aug. | Patchy rain possible | 31° /28° | 0.3 mm | 7 | |
| 19 Aug. | Patchy rain possible | 31° /29° | 0.3 mm | 7 | |
| 20 Aug. | Patchy rain possible | 31° /29° | 0.2 mm | 7 | |
| 21 Aug. | Patchy rain possible | 31° /29° | 1.3 mm | 7 | |
| 22 Aug. | Patchy rain possible | 31° /29° | 0.4 mm | 7 | |
| 23 Aug. | Moderate or heavy rain shower | 31° /29° | 6.7 mm | 7 | |
| 24 Aug. | Patchy rain possible | 29° /29° | 3.8 mm | 6 | |
| 25 Aug. |  Heavy rain at times | 30° /29° | 2.2 mm | 7 | |
| 26 Aug. | Patchy rain possible | 30° /29° | 0.5 mm | 7 | |
| 27 Aug. | Moderate or heavy rain shower | 29° /28° | 2.6 mm | 6 | |
| 28 Aug. | Moderate or heavy rain shower | 29° /27° | 24 mm | 6 | |
| 29 Aug. | Patchy rain possible | 29° /28° | 0.9 mm | 6 | |
| 30 Aug. | Moderate or heavy rain shower | 29° /27° | 5.2 mm | 6 | |
| 31 Aug. | Patchy rain possible | 29° /29° | 3.7 mm | 6 | |
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Important Notice
Our weather forecast for Grand Cayman in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Grand Cayman forecast closer to your planned date for the most up-to-date weather information.
Change Month
Grand Cayman in August - FAQ
What are the expected maximum and minimum temperatures in Grand Cayman during August?
During August, expect a variety of temperatures with highs around 30° and lows near 28°, suitable for diverse activities and preferences.
How much rainfall should be expected in Grand Cayman during August?
Moderate rainfall is anticipated in Grand Cayman during August, with a total of 88.4 mm spread over approximately 27 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Grand Cayman during August?
The average wind speed in Grand Cayman during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Grand Cayman
Explore the daily rainfall trends and prepare for Grand Caymans August weather 💧
UV exposure in Grand Cayman during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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