St Peter Port Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit St Peter Port.

Climate overview of St Peter Port

St Peter Port, Guernsey, United Kingdom, experiences moderate temperature changes through the seasons. August is the warmest month with daytime highs of 19°C (66°F), while February is the coolest at 11°C (52°F).

The city receives around 962 mm (38 in) of rainfall per year. November is the wettest month and July the driest. The most sunshine falls in July, with an average of 8.4 hours of daily sunshine.

St Peter Port Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in St Peter Port - and find the best time to visit.

Monthly Temperature in St Peter Port

In St Peter Port, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a pleasant 19°C (66°F) in August to a chilly 11°C (52°F) in February.

Nighttime temperatures range from 16°C (61°F) in August to 7°C (45°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in St Peter Port

Generally, St Peter Port has a moderate amount of precipitation, averaging 962 mm (38 in) of rainfall annually. The seasons in St Peter Port bring significant changes in precipitation. The wettest month, November, receives high rainfall, with an average of 131 mm (5.2 in) of precipitation. This rainfall is distributed across 18 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 41 mm (1.6 in) over 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our St Peter Port Precipitation page.

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

Sunshine Hours in St Peter Port

In St Peter Port, summer days are longer and more sunny, with daily sunshine hours peaking at 8.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.0 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Guernsey, the United Kingdom (3 KM, 2 Miles).

Daily hours of sunshine

Data from: Guernsey, the United Kingdom (3 KM, 2 Miles).

Best Time to Visit St Peter Port

For comfortable weather, consider visiting St Peter Port in July, August and September. Conditions are usually least favourable in January and December.

Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.

  • Best overall: July, August and September
  • Warmest weather: July, August and September
  • Most sunshine: June and July
  • Fewest rainy days: June, July and August

Frequently asked questions about the climate in St Peter Port

What is the best time to visit St Peter Port?

July, August and September typically offer the most optimal weather in St Peter Port. In contrast, January and December tend to have less optimal conditions.

What temperatures can I expect in St Peter Port?

Daytime highs range from 11°C (52°F) in February to 19°C (66°F) in August. Nighttime lows range from 7°C (45°F) to 16°C (61°F).

How much rain does St Peter Port get?

Annual rainfall is around 962 mm (38 in). November is the wettest month with 131 mm (5.2 in), while July is the driest with 41 mm (1.6 in).

How sunny is St Peter Port?

St Peter Port receives around 1,888 hours of sunshine per year. July is the sunniest month with 252 hours, while December is the cloudiest with just 61 hours.

St Peter Port 3-Day Forecast

St Peter Port 3-Day Forecast

St Peter Port on the map

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