Grand Cayman
August
Weather in Grand Cayman for August 2026
Your guide to Grand Cayman weather in August - trends and predictions
Until now, August 2026 in Grand Cayman has been nearly identical to the historical average, with a temperature of 30.6 °C (showing only a slight deviation of 0.3 °C).
The forecast for the next days in Grand Cayman predicts temperatures to be around 29 °C, close to the historical average.
In general, the average temperature in Grand Cayman at the beginning of August is 30.1 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 29.7 °C by the end of August.
The climate of Grand Cayman in August is notably wet, with an average of 12 rainy days, and a total of 54.2 mm of precipitation.
Temperatures
Rain 🌧️
19
Dry days
12
Rainy days
0
Snow days
30°/28°
Temperatures
20 km/h
Avg max wind
77 %
Avg humidity
Grand Cayman Weather August
Move between months or click on a day
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
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Patchy rain possible | 30° /27° | 0.6 mm | 8 | |
| 2 Aug. |  Moderate or heavy rain shower | 30° /26° | 3 mm | 9 | |
| 3 Aug. | Moderate or heavy rain shower | 30° /26° | 8.5 mm | 8 | |
| 4 Aug. | Patchy rain possible | 30° /27° | 3.6 mm | 8 | |
| 5 Aug. | Patchy rain possible | 31° /27° | 2.3 mm | 9 | |
| 6 Aug. | Patchy rain possible | 30° /27° | 1.6 mm | 8 | |
| 7 Aug. | Patchy rain possible | 30° /28° | 0.6 mm | 8 | |
| 8 Aug. | Patchy rain possible | 30° /28° | 0.5 mm | 8 | |
| 9 Aug. | Patchy rain possible | 31° /28° | 0.8 mm | 9 | |
| 10 Aug. | Patchy rain possible | 31° /28° | 0.9 mm | 8 | |
| 11 Aug. | Patchy rain possible | 31° /28° | 0.8 mm | 8 | |
| 12 Aug. | Patchy rain possible | 30° /29° | 0.7 mm | 11 | |
| 13 Aug. |  Partly cloudy | 30° /29° | 1.6 mm | 11.7 | |
| 14 Aug. | Patchy rain possible | 30° /29° | 0.6 mm | 11.4 | |
| 15 Aug. | Patchy rain possible | 29° /29° | 0.5 mm | 11.3 | |
| 16 Aug. |  Sunny | 30° /28° | 1.8 mm | 7 | |
| 17 Aug. | Patchy rain possible | 29° /29° | 0.1 mm | 7 | |
| 18 Aug. | Patchy rain possible | 29° /29° | 8.8 mm | 7 | |
| 19 Aug. | Patchy rain possible | 29° /27° | 14.3 mm | 7 | |
| 20 Aug. | Partly cloudy | 29° /28° | 1.4 mm | 7 | |
| 21 Aug. | Partly cloudy | 29° /29° | 0 mm | 7 | |
| 22 Aug. | Partly cloudy | 29° /29° | 0.1 mm | 7 | |
| 23 Aug. | Partly cloudy | 29° /29° | 1.8 mm | 7 | |
| 24 Aug. | Partly cloudy | 29° /29° | 6 mm | 7 | |
| 25 Aug. | Partly cloudy | 29° /29° | 10.1 mm | 7 | |
| 26 Aug. | Patchy rain possible | 31° /29° | 0.2 mm | 7 | |
| 27 Aug. | Moderate or heavy rain shower | 30° /28° | 1.3 mm | 7 | |
| 28 Aug. | Moderate or heavy rain shower | 29° /28° | 18.4 mm | 6 | |
| 29 Aug. | Patchy rain possible | 30° /28° | 0.4 mm | 7 | |
| 30 Aug. | Moderate or heavy rain shower | 30° /28° | 2.6 mm | 7 | |
| 31 Aug. | Patchy rain possible | 29° /28° | 1.9 mm | 6 | |
| Next | |||||
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 54.2 mm spread over approximately 12 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 20 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 💧
Typically, Grand Cayman has 12 rainy days in August with a total of 54.2 mm of rainfall.
UV exposure in Grand Cayman during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Quick links
More Grand Cayman weather pages
You are here
Where is Grand Cayman?Get accurate weather forecasts for Grand Cayman, located at latitude 19.323 and longitude -81.249. Stay updated with localized weather information tailored for Grand Cayman.
Found a mistake?
We appreciate your attention to details. Tell us here.