Climate almanac
Key West
Florida, United States · 24.56°, -81.78°
What is the weather like in Key West in August?
In August, Key West is typically 85°F (30°C) during the day and 82°F (28°C) at night. The month brings about 4.5 in (115 mm) of precipitation in total.
- Average high85°F (30°C)
- Average low82°F (28°C)
- Precipitation4.5 in (115 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)