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Mount Sunapee Weather in September

September in Mount Sunapee sees daytime temperatures around 21°C (70°F) and lows of 10°C (50°F) at night. With around 99 mm (3.9 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Mount Sunapee in September

Historically, September sees about 10 days of rain, with a monthly average of 99 mm (3.9 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Mount Sunapee in September

September tends to be one of the perfect months in Mount Sunapee, with 21°C (70°F) in the afternoon and 10°C (50°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Mount Sunapee in September

Expect sunny days throughout the month, with an estimated 214 hours of sunshine. This makes it a pleasant time to visit Mount Sunapee.

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

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Check the conditions for any month of the year.

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

Mount Sunapee Temperature in September

Min TemperatureMin Temperature 10°C (50°F)  
Max TemperatureMax Temperature 21°C (70°F)  
Chance of RainChance of Rain 34%  
PrecipitationPrecipitation 99 mm (3.9 in)  
Rainy daysRainy days 10 days  
HumidityHumidity 76% *  
SunshineSunshine 214 hours *  
Percentage SunshinePercentage Sunshine *  
* Data from: Concord, the United States of America (45 KM, 28 Miles).

Best Places in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →

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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 (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Mount Sunapee 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. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Mount Sunapee 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.

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

More climate data for Mount Sunapee