Dover weather in August 2025

Expect daytime maximum temperatures of 86°F in Dover, Delaware in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 4.3 inches of rainfall in the month.

  • 86°F maximum daytime temperature in August in Dover86
    86°F max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in August in Dover10
    10 days with some rainfall
  • 64°F minimum night-time temperature in August in Dover64
    64°F min night temperature
  • 14 hours of daylight per day in August in Dover14
    14 hours of daylight per day
  • Moderate heat & humidity in August in DoverM
    Moderate heat & humidity
  • 4.3 inches monthly rainfall in August in Dover4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Dover8
    8 (Very High) UV index

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The August weather guide for Delaware (Dover) 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 Dover in August?

Daytime temperatures usually reach 86°F in Dover in August with moderate heat and humidity, falling to 64°F at night.

How sunny is it in Dover in August?

There are normally 8 hours of bright sunshine each day in Dover in August - that's 62% of daylight hours.

Does it rain in Dover in August?

There are usually 10 days with some rain in Dover in August and the average monthly rainfall is 4.3 inches.

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

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

Dover August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:03 19:13
Saturday, 16th August 2025 05:16 18:56
Sunday, 31st August 2025 05:30 18:34

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