Guernsey weather in September (Guernsey island, United Kingdom)

Will it be rainy or sunny in Guernsey this September? Get all the weather information you need to plan your visit.

Temperatures

In September, Guernsey tends to experience pleasant temperatures and moderate rainfall. Expect temperatures to climb to 18°C during the day, with nighttime readings dropping to 16°C.

Precipitation

Guernsey in September usually receives moderate rainfall, averaging around 66 mm for the month. Climate data suggests that about 13 days will experience rainfall.

Average sunshine

Expect a moderate amount of sunlight, with approximately 182 hours. This means a pleasant mix of sun and clouds.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Guernsey. July, August and September typically offer the best circumstances. While January and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Guernsey climate page with graphs.

 

Guernsey, monthly averages in September

Min Temperature 16°C  

Max Temperature 18°C  

Chance of Rain 43%  

Precipitation 66 mm  

Rainy days 13 days  

Sunshine 182 hours  

Percentage Sunshine 47%  

Where to go in the United Kingdom in September

Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Guernsey, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

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

Interested in more climate information?

This site provides you with all the information you need about the climate in Guernsey.

Our site offers climate and forecast data for every country in the world. Are you going to the United Kingdom? On this website you can find historical weather averages for many cities in the United Kingdom. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.