Roseau weather in March
March in Roseau: warm, dry, with clean air — one of the best months to visit.
#1 of 12 months in Roseau · #135 of 604 destinations to visit in March · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Roseau climate normals — March
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 28°C / 82°F | |
| Rainfall | 27 mm / 1.1 in | ☀️ dry |
| Rainy days | 10 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 21°C / 69°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.1 h | |
| Wind | 32 km/h / 20 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Roseau?
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Roseau in March — FAQ
- Is March a good time to visit Roseau?
- March in Roseau: warm, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Roseau on SeasonMap's comfort score (85/100).
- What is the weather like in Roseau in March?
- In March, Roseau averages a daily high of 26.2°C and a low of 24.1°C, with about 26.9 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Roseau in March?
- Roseau has a mean US Air Quality Index of about 39 in March.