Lake Sunapee weather in August 2025

Expect 25°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Lake Sunapee in August. Check more long-term weather averages for Lake Sunapee in August before you book your next holiday to New Hampshire in 2025/2026.

  • 25°C maximum daytime temperature in August in Lake Sunapee25
    25°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in August in Lake Sunapee12
    12 days with some rainfall
  • 12°C minimum night-time temperature in August in Lake Sunapee12
    12°C min night temperature
  • 14 hours of daylight per day in August in Lake Sunapee14
    14 hours of daylight per day
  • No heat & humidity in August in Lake Sunapee0
    No heat & humidity
  • 100 mm monthly rainfall in August in Lake Sunapee100
    100 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Lake Sunapee7
    7 (High) UV index

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Lake Sunapee by month

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The August weather guide for New Hampshire (Lake Sunapee) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Lake Sunapee in August?

Daytime temperatures usually reach 25°C in Lake Sunapee in August with no heat and humidity, falling to 12°C at night.

How sunny is it in Lake Sunapee in August?

There are normally 8 hours of bright sunshine each day in Lake Sunapee in August - that's 57% of daylight hours.

Does it rain in Lake Sunapee in August?

There are usually 12 days with some rain in Lake Sunapee in August and the average monthly rainfall is 100mm.

What is the chance of a hurricane in Lake Sunapee in August?

On average less than 1 day in August in Lake Sunapee is likely to be affected by the passage of one or more tropical storms.

Lake Sunapee August sunrise & sunset times

Browse the sunrise and sunset times for Lake Sunapee in August 2025. Select a month to view Lake Sunapee sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:39 19:10
Saturday, 16th August 2025 04:55 18:49
Sunday, 31st August 2025 05:12 18:25

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