Dry Tortugas National Park weather in August
August in Dry Tortugas National Park: sweltering, rainy, with clean air — a good time to visit.
#11 of 12 months in Dry Tortugas National Park · #466 of 604 destinations to visit in August · comfort 63/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Dry Tortugas National Park climate normals — August
| Daytime high | 30°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 28°C / 82°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 116 mm / 4.6 in | 🌧 rainy |
| Rainy days | 16 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 13 h | |
| Wind | 23 km/h / 14 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Dry Tortugas National Park?
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Dry Tortugas National Park in August — FAQ
- Is August a good time to visit Dry Tortugas National Park?
- August in Dry Tortugas National Park: sweltering, rainy, with clean air — a good time to visit. It ranks #11 of 12 months for Dry Tortugas National Park on SeasonMap's comfort score (63/100).
- What is the weather like in Dry Tortugas National Park in August?
- In August, Dry Tortugas National Park averages a daily high of 29.5°C and a low of 27.8°C, with about 115.6 mm of rain over roughly 16 rainy days.
- What is the air quality in Dry Tortugas National Park in August?
- Dry Tortugas National Park has a mean US Air Quality Index of about 42 in August.