Dorchester weather in September 2025

Expect 64°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Dorchester in September. Check more long-term weather averages for Dorchester in September before you book your next holiday to England in 2025/2026.

  • 64°F maximum daytime temperature in September in Dorchester64
    64°F max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in September in Dorchester13
    13 days with some rainfall
  • 50°F minimum night-time temperature in September in Dorchester50
    50°F min night temperature
  • 13 hours of daylight per day in September in Dorchester13
    13 hours of daylight per day
  • No heat & humidity in September in Dorchester0
    No heat & humidity
  • 2.9 inches monthly rainfall in September in Dorchester2.9
    2.9 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Dorchester4
    4 (Moderate) UV index

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Recommended for England

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  • Build passes around preferred attractions & number of days
  • Including Circus, Eye, SEA LIFE, Dungeon & Madam Tussauds

The September weather guide for England (Dorchester) 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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More about England

How hot is it in Dorchester in September?

Daytime temperatures usually reach 64°F in Dorchester in September, falling to 50°F at night.

How sunny is it in Dorchester in September?

There are normally 5 hours of bright sunshine each day in Dorchester in September - that's 41% of daylight hours.

Does it rain in Dorchester in September?

There are usually 13 days with some rain in Dorchester in September and the average monthly rainfall is 2.9 inches.

Dorchester September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:24 18:54
Monday, 15th September 2025 05:45 18:23
Tuesday, 30th September 2025 06:09 17:50

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