Portsmouth weather in September 2024

Expect 18°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Portsmouth in September. Check more long-term weather averages for Portsmouth in September before you book your next holiday to England in 2024/2025.

  • 18°C maximum daytime temperature in September in Portsmouth18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in September in Portsmouth11
    11 days with some rainfall
  • 12°C minimum night-time temperature in September in Portsmouth12
    12°C min night temperature
  • 13 hours of daylight per day in September in Portsmouth13
    13 hours of daylight per day
  • No heat & humidity in September in Portsmouth0
    No heat & humidity
  • 63 mm monthly rainfall in September in Portsmouth63
    63 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Portsmouth4
    4 (Moderate) UV index
  • 17°C sea temperature in September in Portsmouth17
    17°C sea temperature

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Recommended for England

  • Book theatre breaks in London's West End
  • Enjoy top shows, dinner & hotel accommodation
  • Packages available with & without coach transfers

The September weather guide for England (Portsmouth) 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 / mm)  |  Imperial (°F / inches)

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More about England

How hot is it in Portsmouth in September?

Daytime temperatures usually reach 18°C in Portsmouth in September, falling to 12°C at night.

How sunny is it in Portsmouth in September?

There are normally 5 hours of bright sunshine each day in Portsmouth in September - that's 43% of daylight hours.

How warm is the sea around Portsmouth in September?

The average sea temperature around Portsmouth in September is 17°C.

Does it rain in Portsmouth in September?

There are usually 11 days with some rain in Portsmouth in September and the average monthly rainfall is 63mm.

Portsmouth September sunrise & sunset times

Browse the sunrise and sunset times for Portsmouth in September 2024. Select a month to view Portsmouth sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:19 19:49
Sunday, 15th September 2024 06:40 19:17
Monday, 30th September 2024 07:04 18:44

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