Mount Sunapee (NH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mount Sunapee.
Climate overview of Mount Sunapee
Mount Sunapee, New Hampshire, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 26°C (79°F) in July, while winters cool to -2°C (28°F) in January.
Rain/snowfall is high, totalling around 1272 mm (50 in) per year. October is the wettest month and January the driest. The sunniest month is July, with 9.8 hours of sunshine per day on average.
Mount Sunapee Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mount Sunapee — and find the best time to visit.
Monthly Temperature in Mount Sunapee
Depending on the time of the year, temperatures range from comfortable to very cold in Mount Sunapee. Average maximum daytime temperatures range from a comfortable 26°C (79°F) in July, the warmest time of the year, to a very cold -2°C (28°F) during cooler months like January.
At night, you can expect temperatures ranging from 16°C (61°F) in July to around -10°C (14°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mount Sunapee
Mount Sunapee has a relatively rain/snowy climate with high precipitation levels, averaging 1272 mm (50 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, October it receives heavy rainfall, averaging 165 mm (6.5 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month January brings less snowfall, with 75 mm (3 in) over 12 snowy days. For more details, please visit our Mount Sunapee Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Mount Sunapee
Seasonal changes in sunshine hours are quite dramatic in Mount Sunapee. While July receives considerable daily sunshine with up to 9.8 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.2 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Mount Sunapee by Month
The relative humidity is high throughout the year in Mount Sunapee.
The city experiences its highest humidity in September, reaching 76%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Mount Sunapee
Rainfall during this time ranges from 99 mm (3.9 in) in September to 135 mm (5.3 in) in June. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during October, bringing heavy precipitation. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
Frequently asked questions about the climate in Mount Sunapee
What is the best time to visit Mount Sunapee?
September typically offers the most optimal weather in Mount Sunapee. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Mount Sunapee?
Daytime highs range from -2°C (28°F) in January to 26°C (79°F) in July. Nighttime lows range from -10°C (14°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Mount Sunapee get?
Annual rainfall is around 1272 mm (50 in). October is the wettest month with 165 mm (6.5 in), while January is the driest with 75 mm (3 in).
How sunny is Mount Sunapee?
Mount Sunapee receives around 2,512 hours of sunshine per year. July is the sunniest month with 295 hours, while November is the cloudiest with just 127 hours. Overall, Mount Sunapee enjoys abundant sunshine.
Mount Sunapee 3-Day Forecast
Mount Sunapee (NH) 3-Day Forecast
Mount Sunapee on the map
Mount Sunapee is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.