Saint Thomas weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Excellent
Best time to visit: December – April
What is the weather like in Saint Thomas in March?
In March, Saint Thomas is warm: daytime highs average 26 °C, and even at night it stays warm at around 24 °C. The sea averages 26.3 °C – lovely and warm for swimming. The sun shines for around 9 hours a day. Rain falls on about 7 days, adding up to 23 mm. The air is often humid and muggy. It is often windy, with gusts of around 29 km/h. All in all, March is an excellent month for a holiday in Saint Thomas.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 92 | 94 | 90 |
| Day | 25° | 26° | 26° |
| Night | 24° | 24° | 25° |
| Sea | 26° | 26° | 27° |
| Sun | 9 h | 9 h | 9 h |
| Rain days | 7 | 7 | 9 |
More details for March
- Daylight
- 12 h 1 min06:29 – 18:30
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 29 km/haverage daily peakAll months
- Cloud cover
- 34 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC−4America/St_Thomas
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %98 %
- Few rainy daysweight 30 %81 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in March
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Windproof jacket
Saint Thomas in March: quick answers
Is Saint Thomas hot in March?
Warm rather than hot: in March, daytime highs in Saint Thomas average 26 °C and nights cool to about 24 °C.
Can you swim in Saint Thomas in March?
Yes. In March the sea averages 26.3 °C – lovely and warm for swimming.
Does it rain much in Saint Thomas in March?
Rain falls on about 7 days, adding up to 23 mm.
Saint Thomas month by month
The whole year in Saint ThomasAll destinations: U.S. Virgin IslandsCaribbean weather in MarchWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences