Stamford weather in August 2025

Expect 82°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Stamford in August. Check more long-term weather averages for Stamford in August before you book your next holiday to Connecticut in 2025/2026.

  • 82°F maximum daytime temperature in August in Stamford82
    82°F max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in August in Stamford9
    9 days with some rainfall
  • 59°F minimum night-time temperature in August in Stamford59
    59°F min night temperature
  • 14 hours of daylight per day in August in Stamford14
    14 hours of daylight per day
  • Moderate heat & humidity in August in StamfordM
    Moderate heat & humidity
  • 4.6 inches monthly rainfall in August in Stamford4.6
    4.6 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Stamford8
    8 (Very High) UV index

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The August weather guide for Connecticut (Stamford) 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)  |  Imperial (°F)

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How hot is it in Stamford in August?

Daytime temperatures usually reach 82°F in Stamford in August with moderate heat and humidity, falling to 59°F at night.

How sunny is it in Stamford in August?

There are normally 8 hours of bright sunshine each day in Stamford in August - that's 61% of daylight hours.

Does it rain in Stamford in August?

There are usually 9 days with some rain in Stamford in August and the average monthly rainfall is 4.6 inches.

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

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

Stamford August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:50 19:10
Saturday, 16th August 2025 05:05 18:51
Sunday, 31st August 2025 05:20 18:28

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