St Peter Port Weather in September

Thinking of visiting St Peter Port in September? Expect pleasant temperatures reaching 19°C (66°F) during the day, dropping to 16°C (61°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in St Peter Port in September

Looking at the last 30 years, the data shows about 13 days with rain, averaging 67 mm (2.6 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in St Peter Port in September

In September, St Peter Port gets pleasant temperatures, with highs of 19°C (66°F). Nights cool to around 16°C (61°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in St Peter Port in September

The area enjoys a moderate level of sunlight, with around 182 hours. It's a good balance between sunny and cloudy days.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit St Peter Port.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our St Peter Port's climate page.

St Peter Port Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 43%  

Precipitation 67 mm (2.6 in)  

Rainy days 13 days  

Sunshine 182 hours *  

Percentage Sunshine 47% *  

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

What to Wear in St Peter Port in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in St Peter Port in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Barbeque

7/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our St Peter Port's climate page.

More climate data for St Peter Port

Temperature Rainfall Sunshine

See the full St Peter Port climate overview or explore weather in the United Kingdom.