Port Isaac weather in September (Cornwall, United Kingdom)

Looking to travel to Port Isaac in September? Check out this comprehensive weather guide.

In September, Port Isaac generally has pleasant temperatures and moderate rainfall. September is a summer month. Throughout the day, temperatures typically settle at around 18°C. But by evening, they drop to around 13°C.

Port Isaac in September usually receives moderate rainfall, averaging around 79 mm for the month. Rain is expected on roughly 15 days.

The city usually sees around 165 hours of sunlight, indicating a moderately sunny period.

If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. While January, February, November and December tend to showcase less optimal conditions.

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

 

Port Isaac, monthly averages in September

Min Temperature 13°C  

Max Temperature 18°C  

Chance of Rain 50%  

Precipitation 79 mm  

Rainy days 15 days  

Sunshine 165 hours *  

Percentage Sunshine *  

* Data from: Newquay, the United Kingdom (26 KM, 16 Miles).

Where to go in the United Kingdom in September

Find out more about the weather in the United Kingdom in September and which places have the best weather 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 Port Isaac in September?

For visitors traveling to Port Isaac, 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 in September.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Port Isaac.

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 climate conditions. Find out where to go with our weather planner.