Weather in Key West
What's the weather like in Key West?
Key West has a moderate climate and moderate rainfall spread across the year. Average daytime highs range from 23°C (73°F) in January to 30°C (85°F) in July, with overnight lows around 20°C (69°F) and 28°C (82°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Key West are January through May, and October through December.
Quick facts
- Country
- 🇺🇸 United States
- Region
- North America
- Time zone
- America/New_York
- Coordinates
- 24.555, -81.780
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 23°C / 73°F | 20°C / 69°F | 52 mm | 16 | — |
| February | 24°C / 74°F | 22°C / 71°F | 30 mm | 13 | — |
| March | 24°C / 76°F | 23°C / 73°F | 34 mm | 14 | — |
| April | 26°C / 78°F | 24°C / 76°F | 40 mm | 15 | — |
| May | 27°C / 81°F | 25°C / 78°F | 93 mm | 18 | — |
| June | 29°C / 83°F | 27°C / 80°F | 116 mm | 24 | — |
| July | 30°C / 85°F | 28°C / 82°F | 91 mm | 23 | — |
| August | 30°C / 85°F | 28°C / 82°F | 109 mm | 25 | — |
| September | 29°C / 84°F | 27°C / 81°F | 159 mm | 26 | — |
| October | 28°C / 82°F | 26°C / 79°F | 132 mm | 25 | — |
| November | 26°C / 78°F | 24°C / 75°F | 76 mm | 19 | — |
| December | 24°C / 76°F | 22°C / 72°F | 56 mm | 14 | — |
Key West by month
Detailed weather for any specific month:
Seasonal patterns to know
Atlantic hurricane season runs June–November (peak August–October). Tropical storms and hurricanes are possible — peak risk is August–October.
Cities with a similar climate to Key West
Frequently asked questions
When is the best time to visit Key West?
The most comfortable months in Key West are usually January, February, December, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Key West?
August is typically the hottest month in Key West, averaging a high of 30°C (85°F).
What is the coldest month in Key West?
January is usually the coldest, with average lows around 20°C (69°F).
Does it snow in Key West?
Snow is rare in Key West; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.