Miami weather in August
August in Miami: sweltering, soaked, with clean air — an excellent time to visit.
#8 of 12 months in Miami · #294 of 604 destinations to visit in August · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Miami climate normals — August
| Daytime high | 30°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 181 mm / 7.1 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 13 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Miami in August — FAQ
- Is August a good time to visit Miami?
- August in Miami: sweltering, soaked, with clean air — an excellent time to visit. It ranks #8 of 12 months for Miami on SeasonMap's comfort score (80/100).
- What is the weather like in Miami in August?
- In August, Miami averages a daily high of 30.3°C and a low of 26.5°C, with about 180.6 mm of rain over roughly 26.2 rainy days.
- What is the air quality in Miami in August?
- Miami has a mean US Air Quality Index of about 45 in August.