Key West · SpringMonth summary
Key West weather in May
✅ Good
🌡️ Temperature min / max
79°F – 81°F
🌧 Rainy days
35% of days
☀️ Sunshine
12.9h per day on average
🌊 🌊 Season
Spring
⭐ ⭐ Weather score
8.4/10
📅 📅 Best month
April (8.7/10)
Quick decision
Should you visit Key West in May?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Key West in May: 81°F and 12.9h of sunshine. Decent, but not the peak.
By trip type
Key West in May by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in May
Spring marks the start of the good season in Key West. Temperatures rise (27°F) and tourists have not yet arrived en masse. Expect rain on 35% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if April (8.7/10) remains theoretically better.
Browse by month
All months for Key West
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌤️ January | 68°F | 73°F | 25% | 0.1in | 10.2h | 7.9/10 |
| 🌤️ February | 72°F | 75°F | 21% | 0.0in | 10.9h | 8.2/10 |
| ☀️ March | 73°F | 77°F | 14% | 0.1in | 11.3h | 8.6/10 |
| ☀️ April | 75°F | 79°F | 23% | 0.1in | 12.5h | 8.7/10 |
| 🌤️ May | 79°F | 81°F | 35% | 0.1in | 12.9h | 8.4/10 |
| 🌤️ June | 81°F | 84°F | 55% | 0.2in | 12.9h | 7.7/10 |
| 🌤️ July | 82°F | 86°F | 53% | 0.1in | 13.0h | 7.6/10 |
| 🌤️ August | 82°F | 86°F | 59% | 0.2in | 12.5h | 7.4/10 |
| ⛅ September | 81°F | 84°F | 65% | 0.2in | 11.4h | 7.3/10 |
| 🌤️ October | 79°F | 82°F | 55% | 0.2in | 10.9h | 7.6/10 |
| 🌤️ November | 75°F | 79°F | 28% | 0.1in | 10.4h | 8.1/10 |
| 🌤️ December | 72°F | 75°F | 22% | 0.1in | 10.4h | 8.1/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In May, Key West averages 81°F, 35% rainy days and 12.9h of sunshine per day. Overall weather score: 8.4/10.
See methodology →
Comparison
May vs April (best month)
The best month is April (score 8.7/10). Difference:
- 🌡️ Max temperature : -1°F
- 🌧 Rainy days : -12%
- ☀️ Sunshine : -0.4h/day
FAQ
FAQ — Key West in May
Is May a good time to visit Key West?
May is an excellent time to visit Key West (score 8.4/10). With 81°F, 12.9h of sunshine and 35% rain, conditions are very favourable.
What to do in Key West in May?
With 81°F and 12.9h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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Activities & tours
Activities and tours in Key West
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