Key West
August
Weather in Key West for August 2025
Your guide to Key West weather in August - trends and predictions
In general, the average temperature in Key West at the beginning of August is 29.3 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 29.4 °F by the end of August.
Key West experiences an exceptionally high level of rainfall in August, with more than 24 rainy days on average.
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6
Dry days
25
Rainy days
0
Snow days
29°/29°
Temperatures
26 km/h
Avg max wind
73 %
Avg humidity
Key West in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  29° | 2 30° | 3  30° | ||||
| 4 29° | 5 29° | 6  29° | 7 29° | 8 29° | 9 29° | 10 30° |
| 11 30° | 12 29° | 13 30° | 14  30° | 15 30° | 16 29° | 17 29° |
| 18 29° | 19 29° | 20 29° | 21 29° | 22 29° | 23 30° | 24  30° |
| 25 29° | 26 29° | 27 29° | 28 29° | 29  30° | 30 30° | 31 30° |
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Temperatures trend during August in Key West
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Light rain shower | 29° /29° | 1.2 mm | 6 | |
| Aug. 2 | Light rain shower | 30° /29° | 11.1 mm | 7 | |
| Aug. 3 | Moderate or heavy rain shower | 30° /27° | 32.9 mm | 6 | |
| Aug. 4 | Light rain shower | 29° /28° | 9.6 mm | 6 | |
| Aug. 5 | Light rain shower | 29° /29° | 0.6 mm | 6 | |
| Aug. 6 | Patchy light drizzle | 29° /29° | 0.8 mm | 6 | |
| Aug. 7 | Light rain shower | 29° /28° | 3.2 mm | 6 | |
| Aug. 8 | Patchy rain possible | 29° /28° | 0.2 mm | 6 | |
| Aug. 9 | Patchy rain possible | 29° /29° | 3.6 mm | 6 | |
| Aug. 10 | Patchy rain possible | 30° /29° | 0.2 mm | 7 | |
| Aug. 11 | Light rain shower | 30° /29° | 1 mm | 7 | |
| Aug. 12 | Patchy light drizzle | 29° /29° | 2.7 mm | 6 | |
| Aug. 13 | Patchy rain possible | 30° /29° | 0.2 mm | 7 | |
| Aug. 14 | Cloudy | 30° /29° | 0.1 mm | 7 | |
| Aug. 15 | Patchy rain possible | 30° /29° | 7.8 mm | 7 | |
| Aug. 16 | Patchy rain possible | 29° /29° | 0.1 mm | 6 | |
| Aug. 17 | Patchy rain possible | 29° /28° | 3.1 mm | 6 | |
| Aug. 18 | Patchy rain possible | 29° /28° | 2.1 mm | 6 | |
| Aug. 19 | Patchy light drizzle | 29° /29° | 0.6 mm | 6 | |
| Aug. 20 | Light rain shower | 29° /29° | 0.3 mm | 6 | |
| Aug. 21 | Cloudy | 29° /29° | 0 mm | 6 | |
| Aug. 22 | Patchy rain possible | 29° /28° | 0.8 mm | 6 | |
| Aug. 23 | Patchy rain possible | 30° /28° | 0.3 mm | 7 | |
| Aug. 24 | Moderate or heavy rain with thunder | 30° /27° | 18.8 mm | 7 | |
| Aug. 25 | Moderate or heavy rain shower | 29° /27° | 15.8 mm | 6 | |
| Aug. 26 | Light rain shower | 29° /29° | 3.8 mm | 6 | |
| Aug. 27 | Light rain shower | 29° /29° | 14.1 mm | 6 | |
| Aug. 28 | Light rain shower | 29° /29° | 1.3 mm | 6 | |
| Aug. 29 | Patchy light rain with thunder | 30° /28° | 2.9 mm | 7 | |
| Aug. 30 | Light rain shower | 30° /28° | 2.3 mm | 7 | |
| Aug. 31 | Moderate or heavy rain shower | 30° /28° | 4.5 mm | 7 | |
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Important Notice
Our weather forecast for Key West 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 Key West forecast closer to your planned date for the most up-to-date weather information.
Key West in August - FAQ
What are the expected maximum and minimum temperatures in Key West during August?
During August, expect a variety of temperatures with highs around 29° and lows near 29°, suitable for diverse activities and preferences.
How much rainfall should be expected in Key West during August?
Significant rainfall exceeding 149.1 mm is expected in Key West during August, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Key West during August?
The average wind speed in Key West during August is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
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