Saint Helier weather in April
Temperature, sea and sunshine in April: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in April
Fair
Best time to visit: June – September
What is the weather like in Saint Helier in April?
In April, Saint Helier is cool: daytime highs average 11 °C, and nights cool down to about 9 °C. The sea averages 10.3 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 10 rainy days and 49 mm in total. All in all, April is a so-so month for a holiday in Saint Helier.
April compared
How the weather changes from March to May. Tap a month to open it.
More details for April
- Daylight
- 13 h 40 min06:19 – 19:59
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 25 km/haverage daily peakAll months
- Cloud cover
- 60 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Jersey
How the score comes together
- Temperatureweight 50 %34 %
- Sunshineweight 20 %60 %
- Few rainy daysweight 30 %56 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in April
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Saint Helier in April: quick answers
Is Saint Helier hot in April?
No. In April, Saint Helier is cool: daytime highs average 11 °C and nights drop to about 9 °C.
Can you swim in Saint Helier in April?
Only if you don't mind cold water: in April the sea averages just 10.3 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Saint Helier in April?
Rain is frequent, with about 10 rainy days and 49 mm in total.
Saint Helier month by month
The whole year in Saint HelierAll destinations: JerseyWhere to go in AprilSea temperature in April
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