The climate in Miami during August can be summarized as hot and a little damp.
August is in the summer in Miami and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a warm 33°C (91°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 32.7°C 90.9°F |
|---|---|
| Nightly temperature | 18.7°C 65.7°F |
| Average temperature | 25.7°C 78.3°F |
| Daily sunshine | 10.3 hrs |
| Avg rainfall | 93 mm 3.6 ins |
| Rainy days | 8 days |
| Sea temperature | 23.4°C 74°F |
| Humidity | 68% |
| Windspeed | 14kph 9 mph |
On average August is the 5th driest month of the year in Miami with around 93mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.3 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Miami in August 2025.
Best places to visit in August
| Hottest month: | July | 32.9°C 91.2°F |
|---|---|---|
| Driest month: | January | 40mm 1.6ins |
| Sunniest month: | July | 11.3hrs |
| Coldest month: | January | 6.6°C 43.9°F |
| Wettest month: | May | 130mm 5.1ins |