Jersey weather

Read our complete guide to the weather in Jersey.

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The weather guide for Jersey, represented by St Helier, (St Helier) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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Jersey weather overview

Jersey has a delightfully warm summer climate and enjoys mild, if rainy, winters. On the long summer days, between May and September, you can bask in an average of 8 hours of sunshine a day but, if you are planning a walk or a visit to the beach, take a cover-up as those sea breezes can be chilly.

Beach on the north coast of Jersey, Channel Islands © Alagz - Adobe Stock Image
Beach on the north coast of Jersey, Channel Islands © Alagz - Adobe Stock Image

Rain falls mainly in the autumn and winter but can occur sporadically in the summer months. Winters are cool but rarely very cold.

What to pack for Jersey weather

Take relatively warm clothing for the cool winter months and, in the summer, supplement beach wear and light clothing with a warm wrap, just in case. Be prepared for rain at any time of year.

Which is the hottest month in Jersey?

The hottest time of year in St Helier, Jersey is normally July. Expect maximum daytime temperatures to reach 20°C.

Which month has the most rain in Jersey?

In terms of rainfall, November is usually the wettest month in St Helier, Jersey with 115mm on average. There are normally 19 days in November with some rain.

When is it sunniest in Jersey?

The sunniest time of year in St Helier, Jersey is normally July with bright sunshine on average for 53% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in Jersey?

The sea is usually at its warmest in St Helier, Jersey in August when the water temperature reaches 18°C.

What is the flight time to Jersey from the UK?

The flight time to Jersey from the UK is typically 1 hour.

What is the time difference between Jersey and the UK?

The time difference between Jersey and the UK is GMT+0 hours.

What is the main language spoken in Jersey?

The main language spoken in Jersey is English.

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What is the currency in Jersey?

The currency in Jersey is the Jersey Pound (JEP) and the British Pound (GBP).

Which plugs are used in Jersey?

Jersey uses electrical plug type G (230 Volts) - the same as the UK.

Which side of the road do they drive on in Jersey?

They drive on the left side of the road in Jersey.

Compare Jersey weather with the USA

Below the Jersey weather chart shows average maximum daytime temperature for Jersey (St Helier) and the USA (Washington).

Maximum daytime temperature (°C)

Jersey (St Helier)
USA (Washington)
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Metric (°C / mm)  |  Imperial (°F / inches)

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