Key West weather in July
July in Key West: sweltering, rainy, with very humid — an excellent time to visit.
#7 of 12 months in Key West · #247 of 604 destinations to visit in July · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Key West climate normals — July
| Daytime high | 29°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 28°C / 82°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 102 mm / 4 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 12 h/day | |
| Daylight | 13.5 h | |
| Wind | 22 km/h / 14 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Key West in July — FAQ
- Is July a good time to visit Key West?
- July in Key West: sweltering, rainy, with very humid — an excellent time to visit. It ranks #7 of 12 months for Key West on SeasonMap's comfort score (82/100).
- What is the weather like in Key West in July?
- In July, Key West averages a daily high of 29.4°C and a low of 27.7°C, with about 101.8 mm of rain over roughly 14.2 rainy days.
- What is the air quality in Key West in July?
- Key West has a mean US Air Quality Index of about 55 in July.