Key West: weather and best time to visit
Key West (United States) reaches its warmest daytime temperatures in August at around 29°C; the coolest month is January at around 23°C. The sea is warmest in August at about 30°C.
Best time to visit
- 🏖 Beach
- 🏛 City trip
- 🥾 Hiking
Things to do in Key West
Tours, tickets and activities for your trip.
Key West climate, month by month
| Month | Day °C | Night °C | Sea °C | Rain d | Sun h | Beach | City | Hiking |
|---|---|---|---|---|---|---|---|---|
| Jan | 23° | 21° | 23° | 6 | 10 | 73 | 84 | 82 |
| Feb | 23° | 21° | 23° | 5 | 10 | 75 | 87 | 84 |
| Mar | 24° | 22° | 24° | 4 | 11 | 79 | 87 | 81 |
| Apr | 25° | 24° | 25° | 5 | 12 | 86 | 87 | 75 |
| May | 27° | 25° | 27° | 8 | 12 | 85 | 78 | 62 |
| Jun | 28° | 27° | 29° | 13 | 12 | 80 | 63 | 47 |
| Jul | 29° | 27° | 30° | 13 | 12 | 80 | 60 | 44 |
| Aug | 29° | 27° | 30° | 16 | 12 | 78 | 55 | 39 |
| Sep | 29° | 27° | 30° | 18 | 11 | 77 | 57 | 41 |
| Oct | 27° | 26° | 28° | 13 | 10 | 78 | 64 | 48 |
| Nov | 25° | 24° | 26° | 6 | 10 | 84 | 83 | 70 |
| Dec | 24° | 22° | 24° | 5 | 10 | 79 | 85 | 79 |
Rain d = average rain days per month · Sun h = average sunshine hours per day · scores 0–100, higher is better.
Every month in detail
Key West in January
Daytime highs around 23°C, nights near 21°C. January is the coldest month of the year. Expect about 6 rain days and 10 hours of sunshine per day. The sea is pleasant for swimming at 23°C.
Beach: goodCity: excellentHiking: excellentMore destinations for January →
Key West in February
Daytime highs around 23°C, nights near 21°C. Expect about 5 rain days and 10 hours of sunshine per day. The sea is pleasant for swimming at 23°C.
Beach: goodCity: excellentHiking: excellentMore destinations for February →
Key West in March
Daytime highs around 24°C, nights near 22°C. It is also the driest month of the year. Expect about 4 rain days and 11 hours of sunshine per day. The sea is pleasant for swimming at 24°C.
Beach: goodCity: excellentHiking: excellentMore destinations for March →
Key West in April
Daytime highs around 25°C, nights near 24°C. Expect about 5 rain days and 12 hours of sunshine per day. The sea is properly warm at 25°C.
Beach: excellentCity: excellentHiking: goodMore destinations for April →
Key West in May
Daytime highs around 27°C, nights near 25°C. Expect about 8 rain days and 12 hours of sunshine per day. The sea is properly warm at 27°C.
Beach: excellentCity: goodHiking: goodMore destinations for May →
Key West in June
Daytime highs around 28°C, nights near 27°C. Expect about 13 rain days and 12 hours of sunshine per day. The sea is properly warm at 29°C.
Beach: excellentCity: goodHiking: mixedMore destinations for June →
Key West in July
Daytime highs around 29°C, nights near 27°C. No month gets more sunshine. Expect about 13 rain days and 12 hours of sunshine per day. The sea is properly warm at 30°C.
Beach: excellentCity: goodHiking: mixedMore destinations for July →
Key West in August
Daytime highs around 29°C, nights near 27°C. August is the warmest month of the year. The sea is at its warmest now. Expect about 16 rain days and 12 hours of sunshine per day. The sea is properly warm at 30°C.
Beach: goodCity: mixedHiking: poorMore destinations for August →
Key West in September
Daytime highs around 29°C, nights near 27°C. It is the rainiest month of the year. Expect about 18 rain days and 11 hours of sunshine per day. The sea is properly warm at 30°C.
Beach: goodCity: mixedHiking: mixedMore destinations for September →
Key West in October
Daytime highs around 27°C, nights near 26°C. Expect about 13 rain days and 10 hours of sunshine per day. The sea is properly warm at 28°C.
Beach: goodCity: goodHiking: mixedMore destinations for October →
Key West in November
Daytime highs around 25°C, nights near 24°C. Expect about 6 rain days and 10 hours of sunshine per day. The sea is properly warm at 26°C.
Beach: excellentCity: excellentHiking: goodMore destinations for November →
Key West in December
Daytime highs around 24°C, nights near 22°C. Expect about 5 rain days and 10 hours of sunshine per day. The sea is properly warm at 24°C.
Beach: goodCity: excellentHiking: goodMore destinations for December →
Related destinations
More in United States: Miami Beach · Orlando · New York City · Santa Monica · San Diego · San Francisco
Similar climate: Nassau, Bahamas · Cayo Coco, Cuba · Kenting, Taiwan · Grace Bay, Turks & Caicos Islands