Biddeford Weather in September

September in Biddeford brings high temperatures, with daytime highs of 23°C (73°F) and nights around 11°C (52°F). Quite a bit of rainfall is expected, around 96 mm (3.8 in), so pack an umbrella.

Rainfall in Biddeford in September

Expect around 10 days of rain based on historical data, with 96 mm (3.8 in) average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Biddeford in September

The temperature in Biddeford in September is perfect. Daytime highs reach 23°C (73°F), with nights dropping to 11°C (52°F). This kind of day-to-night contrast is typical for this time of year. At 11°C (52°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 Biddeford in September

The days are predominantly sunny, with an estimated total of around 228 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Average water temperature in September

With water at 16°C (61°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Biddeford's climate page.

Biddeford Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 23°C (73°F)  

Water Temperature 16°C (61°F) *  

Chance of Rain 33%  

Precipitation 96 mm (3.8 in)  

Rainy days 10 days  

Humidity 77% *  

Sunshine 228 hours *  

Percentage Sunshine 61% *  

* Data from: Portland, the United States of America (24 KM, 15 Miles).

What to Wear in Biddeford in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 16°C (61°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Biddeford in September

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

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

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 States of America, check out our Biddeford's climate page.

More climate data for Biddeford

Temperature Rainfall Sunshine Humidity Water Temp

See the full Biddeford climate overview or explore weather in the United States of America.