Dorchester weather in September 2026

Q: How hot is it in Dorchester in September?

Daytime temperatures usually reach 19°C in Dorchester in September, falling to 11°C at night.

Q: How sunny is it in Dorchester in September?

There are normally 5 hours of bright sunshine each day in Dorchester in September - that's 37% of daylight hours.

Q: Does it rain in Dorchester in September?

There are usually 11 days with some rain in Dorchester in September and the average monthly rainfall is 55mm.

Expect daytime maximum temperatures of 64°F in Dorchester, England in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 2.9 inches of rainfall in the month.

64
64°F max day temperature
5
5 hours of sunshine per day
13
13 days with some rainfall
50
50°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
2.9
2.9 inches of monthly rainfall
4
4 (Moderate) UV index

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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)

More about England

How hot is it in Dorchester in September?

Daytime temperatures usually reach 66°F in Dorchester in September, falling to 52°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 37% of daylight hours.

Does it rain in Dorchester in September?

There are usually 11 days with some rain in Dorchester in September and the average monthly rainfall is 2.2 inches.

Dorchester September sunrise & sunset times

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

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