Best time to visit Guernsey

Find the best time to visit Guernsey and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Guernsey by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Guernsey?

The best time to visit Guernsey (St Peter Port) is July and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 9°C maximum daytime temperature in January in Guernsey (St Peter Port)9
    Jan
  • 8°C maximum daytime temperature in February in Guernsey (St Peter Port)8
    Feb
  • 10°C maximum daytime temperature in March in Guernsey (St Peter Port)10
    Mar
  • 12°C maximum daytime temperature in April in Guernsey (St Peter Port)12
    Apr
  • 15°C maximum daytime temperature in May in Guernsey (St Peter Port)15
    May
  • 17°C maximum daytime temperature in June in Guernsey (St Peter Port)17
    Jun
  • 19°C maximum daytime temperature in July in Guernsey (St Peter Port)19
    Jul
  • 20°C maximum daytime temperature in August in Guernsey (St Peter Port)20
    Aug
  • 18°C maximum daytime temperature in September in Guernsey (St Peter Port)18
    Sep
  • 15°C maximum daytime temperature in October in Guernsey (St Peter Port)15
    Oct
  • 12°C maximum daytime temperature in November in Guernsey (St Peter Port)12
    Nov
  • 10°C maximum daytime temperature in December in Guernsey (St Peter Port)10
    Dec

Hours of Sunshine (daily)

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Which is the hottest month in Guernsey?

The hottest time of year in St Peter Port, Guernsey is normally August. Expect maximum daytime temperatures to reach 20°C.

Which month has the most rain in Guernsey?

In terms of rainfall, December is usually the wettest month in St Peter Port, Guernsey with 100mm on average. There are normally 19 days in December with some rain.

When is it sunniest in Guernsey?

The sunniest time of year in St Peter Port, Guernsey is normally July with bright sunshine on average for 52% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in Guernsey?

The sea is usually at its warmest in St Peter Port, Guernsey in August when the water temperature reaches 17°C.

Best time to visit

The weather guide for Guernsey, represented by St Peter Port, (St Peter Port) 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.

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

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Guernsey weather overview

Guernsey 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. 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 Guernsey 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.

Guernsey travel features

Do you want to learn more about Guernsey? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Guernsey.

We don't currently have any travel features on Guernsey. Discover more about holiday destinations around the world with this selection of general travel articles.

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