Mystic weather in August 2026

Expect daytime maximum temperatures of 26°C in Mystic, Connecticut in August based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 102 mm of rainfall in the month.

  • 26°C maximum daytime temperature in August in Mystic26
    26°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in August in Mystic9
    9 days with some rainfall
  • 16°C minimum night-time temperature in August in Mystic16
    16°C min night temperature
  • 14 hours of daylight per day in August in Mystic14
    14 hours of daylight per day
  • Low heat & humidity in August in MysticL
    Low heat & humidity
  • 102 mm monthly rainfall in August in Mystic102
    102 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Mystic8
    8 (Very High) UV index
  • 20°C sea temperature in August in Mystic20
    20°C sea temperature

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The August weather guide for Connecticut (Mystic) 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 Mystic in August?

Daytime temperatures usually reach 28°C in Mystic in August with moderate heat and humidity, falling to 16°C at night.

How sunny is it in Mystic in August?

There are normally 9 hours of bright sunshine each day in Mystic in August - that's 62% of daylight hours.

Does it rain in Mystic in August?

There are usually 10 days with some rain in Mystic in August and the average monthly rainfall is 93mm.

What is the chance of a hurricane in Mystic in August?

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

Mystic August sunrise & sunset times

Browse the sunrise and sunset times for Mystic in August 2026. Select a month to view Mystic sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 04:43 19:05
Sunday, 16th August 2026 04:58 18:45
Monday, 31st August 2026 05:13 18:22

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