Penzance weather in September 2025

Expect 17°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Penzance in September. Check more long-term weather averages for Penzance in September before you book your next holiday to England in 2025/2026.

  • 17°C maximum daytime temperature in September in Penzance17
    17°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in September in Penzance15
    15 days with some rainfall
  • 11°C minimum night-time temperature in September in Penzance11
    11°C min night temperature
  • 13 hours of daylight per day in September in Penzance13
    13 hours of daylight per day
  • No heat & humidity in September in Penzance0
    No heat & humidity
  • 89 mm monthly rainfall in September in Penzance89
    89 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Penzance4
    4 (Moderate) UV index
  • 15°C sea temperature in September in Penzance15
    15°C sea temperature

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The September weather guide for England (Penzance) 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 warm is it in Penzance in September?

Daytime temperatures usually reach 17°C in Penzance in September, falling to 11°C at night.

How sunny is it in Penzance in September?

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

How warm is the sea around Penzance in September?

The average sea temperature around Penzance in September is 15°C.

Does it rain in Penzance in September?

There are usually 15 days with some rain in Penzance in September and the average monthly rainfall is 89mm.

Penzance September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:37 19:06
Monday, 15th September 2025 05:58 18:35
Tuesday, 30th September 2025 06:21 18:02

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