Mount Sunapee weather in September (New Hampshire, United States of America)

Is September a good time to explore Mount Sunapee weather-wise? Want to know if this month is ideal for visiting? Our guide provides detailed weather information.

Temperatures

The weather in Mount Sunapee during September is typically perfect, with pleasant temperatures and moderate rainfall. During the day, temperatures can climb to about 21°C. At night, they may fall to a cooler 10°C.

Precipitation

Mount Sunapee in September usually receives moderate rainfall, averaging around 99 mm for the month. Typically around 10 days days of rainfall are expected.

Average sunshine

The days are predominantly sunny, with an estimated total of around 214 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Mount Sunapee. September typically offers the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

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

 

Mount Sunapee, monthly averages in September

Min Temperature 10°C  

Max Temperature 21°C  

Chance of Rain 34%  

Precipitation 99 mm  

Rainy days 10 days  

Humidity 76% *  

Sunshine 214 hours *  

Percentage Sunshine *  

Data from: Concord, the United States of America (45 KM, 28 Miles).

Where to go 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.

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 Mount Sunapee, 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.

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

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

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. 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.