Climate averages 1991–2020
Roseau weather
in March.
A warm, fairly dry month: the 10th warmest and one of the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in Roseau: daytime highs average 26.3°C and nights cool to about 24.2°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 19 mm of rain on roughly 7 days, which makes March a fairly dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average March day.
The nearest other city in this atlas is Fort-de-France (85 km away). In March its highs average 27.5°C, 1.2°C warmer than Roseau, with 26 mm of rain.
From March to April, average highs rise by 0.7°C to 27.0°C, and monthly rainfall rises from 19 mm to 29 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Roseau climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.9°C24.2°C | 24.2°C | 31 | 12.0 | 11.311 h |
| February | 25.9°C24.0°C | 24.0°C | 19 | 7.0 | 11.612 h |
| March, selected | 26.3°C24.2°C | 24.2°C | 19 | 6.9 | 12.012 h |
| April | 27.0°C24.7°C | 24.7°C | 29 | 8.3 | 12.512 h |
| May | 27.7°C25.5°C | 25.5°C | 44 | 10.2 | 12.813 h |
| June | 27.9°C25.9°C | 25.9°C | 47 | 10.5 | 13.013 h |
| July | 28.0°C25.8°C | 25.8°C | 76 | 16.4 | 12.913 h |
| August | 28.2°C26.0°C | 26.0°C | 99 | 18.4 | 12.613 h |
| September | 28.3°C26.2°C | 26.2°C | 113 | 17.1 | 12.212 h |
| October | 28.0°C25.9°C | 25.9°C | 118 | 19.1 | 11.812 h |
| November | 27.3°C25.4°C | 25.4°C | 101 | 17.1 | 11.411 h |
| December | 26.5°C24.8°C | 24.8°C | 48 | 14.3 | 11.211 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Fort-de-France in MarchMartinique · 85 kmHigh 27.5°C · Low 24.3°C · 26 mm rain
- Basse-Terre in MarchGuadeloupe · 86 kmHigh 28.0°C · Low 24.3°C · 19 mm rain
- Castries in MarchSaint Lucia · 151 kmHigh 27.7°C · Low 23.5°C · 26 mm rain
- Saint John’s in MarchAntigua and Barbuda · 208 kmHigh 26.5°C · Low 24.1°C · 21 mm rain
- Kingstown in MarchSaint Vincent and the Grenadines · 239 kmHigh 27.2°C · Low 25.0°C · 23 mm rain
- Basseterre in MarchSaint Kitts and Nevis · 264 kmHigh 26.1°C · Low 24.0°C · 20 mm rain
- Bridgetown in MarchBarbados · 310 kmHigh 27.1°C · Low 24.6°C · 23 mm rain
- Saint George's in MarchGrenada · 363 kmHigh 27.0°C · Low 25.0°C · 26 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Roseau) is explained once on the Roseau year overview and on the Sources, method and limits page.