ClimateForecastDecemberJanuary >>

Saint Helier Jersey Climate by Month

Temperatures see a moderate degree of fluctuation, transitioning from pleasant conditions to cold. It also experiences much rainfall throughout the year. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

The climate in Saint Helier Jersey experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a pleasant 20°C in August. In February, the coolest month of the year, temperatures drop to a chilly 10°C. At night, expect cooler temperatures, averaging 7°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Saint Helier Jersey is known for its substantial rainfall, with annual precipitation reaching 1061 mm. Saint Helier Jersey can be quite wet during December, receiving approximately 141 mm of precipitation over 19 rainy days.

In contrast July, experiences much drier conditions, with 51 mm of rainfall, spread across 10 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Saint Helier Jersey can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 8.4 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.0 hours of sunlight per day.

Monthly hours of sunshine

Data from: Guernsey, the United Kingdom (47 KM, 29 Miles).

Daily hours of sunshine

Data from: Guernsey, the United Kingdom (47 KM, 29 Miles).

The best time of year to visit Saint Helier Jersey in the United Kingdom

Other facts from our historical weather data:
  • Which is the warmest month in Saint Helier Jersey?
    August has an average maximum temperature of 20°C and is the warmest month of the year.
  • Which is the coldest month in Saint Helier Jersey?
    The coldest month is February with an average maximum temperature of 10°C.
  • Which is the wettest month in Saint Helier Jersey?
    December tops the wettest month list with 141 mm of rainfall.
  • Which is the driest month in Saint Helier Jersey?
    July is the driest month with 51 mm of precipitation.
  • Which is the sunniest month in Saint Helier Jersey?
    July is the sunniest month with an average of 252 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Saint Helier Jersey

    Wed   Dec 11
    7°C | 5°C
    E 29 km/h
    overcast and no rain

    overcast and no rain

    Thu   Dec 12
    6°C | 4°C
    E 25 km/h
    broken clouds and no rain

    broken clouds and no rain

    Fri   Dec 13
    7°C | 3°C
    SE 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain