Southwold weather in September 2025

Expect daytime maximum temperatures of 64°F in Southwold, England in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 2.1 inches of rainfall in the month.

  • 64°F maximum daytime temperature in September in Southwold64
    64°F max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in September in Southwold15
    15 days with some rainfall
  • 52°F minimum night-time temperature in September in Southwold52
    52°F min night temperature
  • 13 hours of daylight per day in September in Southwold13
    13 hours of daylight per day
  • No heat & humidity in September in Southwold0
    No heat & humidity
  • 2.1 inches monthly rainfall in September in Southwold2.1
    2.1 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Southwold4
    4 (Moderate) UV index
  • 63°F sea temperature in September in Southwold63
    63°F sea temperature

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The September weather guide for England (Southwold) 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 Southwold in September?

Daytime temperatures usually reach 64°F in Southwold in September, falling to 52°F at night.

How sunny is it in Southwold in September?

There are normally 5 hours of bright sunshine each day in Southwold in September - that's 39% of daylight hours.

How warm is the sea around Southwold in September?

The average sea temperature around Southwold in September is 63°F.

Does it rain in Southwold in September?

There are usually 15 days with some rain in Southwold in September and the average monthly rainfall is 2.1 inches.

Southwold September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:05 18:41
Monday, 15th September 2025 05:28 18:08
Tuesday, 30th September 2025 05:53 17:32

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