Roseau weather in July
July in Roseau: hot, rainy, with very humid — a great time to visit.
#10 of 12 months in Roseau · #298 of 604 destinations to visit in July · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Roseau climate normals — July
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 31°C / 88°F | |
| Rainfall | 102 mm / 4 in | 🌧 rainy |
| Rainy days | 19 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 11.5 h/day | |
| Daylight | 12.9 h | |
| Wind | 34 km/h / 21 mph | |
| Air quality (US AQI) | 62 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Roseau in July — FAQ
- Is July a good time to visit Roseau?
- July in Roseau: hot, rainy, with very humid — a great time to visit. It ranks #10 of 12 months for Roseau on SeasonMap's comfort score (79/100).
- What is the weather like in Roseau in July?
- In July, Roseau averages a daily high of 28.2°C and a low of 26°C, with about 102.4 mm of rain over roughly 18.8 rainy days.
- What is the air quality in Roseau in July?
- Roseau has a mean US Air Quality Index of about 62 in July.