SeasonMapSaint Helier (Channel Islands) weather in March
Jersey
March in Saint Helier: cool, a little rain, with clean air — a great time to visit.
#7 of 12 months in Saint Helier · #926 of 1383 destinations to visit in March · comfort 70/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Saint Helier in March
No notes yet. Open Saint Helier on the map to add the first one.
Saint Helier climate normals — March
| Daytime high | 11°C / 51°F | 🙂 cool |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Sea temperature | 9°C / 48°F | 🥶 cold sea |
| Rainfall | 72 mm / 2.8 in | 🌦 some rain |
| Rainy days | 14 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 11.9 h | |
| Wind | 37 km/h / 23 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Saint Helier in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 4 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Saint Helier's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSaint Helier's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
Nearby, and something's on
Within 300 km of Saint Helier — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Saint Helier?
Saint Helier in March — FAQ
- Is March a good time to visit Saint Helier?
- March in Saint Helier: cool, a little rain, with clean air — a great time to visit. It ranks #7 of 12 months for Saint Helier on SeasonMap's comfort score (70/100).
- What is the weather like in Saint Helier in March?
- In March, Saint Helier averages a daily high of 10.5°C and a low of 7.9°C, with about 71.9 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Saint Helier in March?
- Saint Helier has a mean US Air Quality Index of about 40 in March.
Other months in Saint Helier
Compare Saint Helier in March
Warmer or cooler than Saint Helier in March
Similar destinations in Western Europe — March
Within 300 km: Bournemouth's Winter waders on Poole Harbour around 15 Oct – 10 Mar, and Isle of Wight's Brent geese and winter waders around 1 Oct – 15 Mar.