SeasonMapSaint Helier (Channel Islands) weather in April
Jersey
April in Saint Helier: cool, a little rain, with clean air — a great time to visit.
#6 of 12 months in Saint Helier · #681 of 1383 destinations to visit in April · comfort 79/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Saint Helier in April
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Saint Helier climate normals — April
| Daytime high | 15°C / 58°F | 🙂 cool |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Feels like (high) | 12°C / 54°F | |
| Sea temperature | 11°C / 52°F | 🥶 cold sea |
| Rainfall | 44 mm / 1.7 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 7°C / 44°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 13.8 h | |
| Wind | 31 km/h / 19 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Saint Helier in April
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 6 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 April — FAQ
- Is April a good time to visit Saint Helier?
- April in Saint Helier: cool, a little rain, with clean air — a great time to visit. It ranks #6 of 12 months for Saint Helier on SeasonMap's comfort score (79/100).
- What is the weather like in Saint Helier in April?
- In April, Saint Helier averages a daily high of 14.5°C and a low of 7.6°C, with about 43.5 mm of rain over roughly 8.3 rainy days.
- What is the air quality in Saint Helier in April?
- Saint Helier has a mean US Air Quality Index of about 44 in April.
Other months in Saint Helier
Compare Saint Helier in April
Warmer or cooler than Saint Helier in April
Similar destinations in Western Europe — April
Within 300 km: London's Blossom in the squares around 25 Mar – 30 Apr, and Newquay's Atlantic swell season around 15 Sep – 15 Apr.