Lake District weather in September 2025

Expect 14°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Lake District in September. Check more long-term weather averages for Lake District in September before you book your next holiday to Lake District in 2025/2026.

  • 14°C maximum daytime temperature in September in Lake District (Grasmere)14
    14°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in September in Lake District (Grasmere)18
    18 days with some rainfall
  • 8°C minimum night-time temperature in September in Lake District (Grasmere)8
    8°C min night temperature
  • 13 hours of daylight per day in September in Lake District (Grasmere)13
    13 hours of daylight per day
  • No heat & humidity in September in Lake District (Grasmere)0
    No heat & humidity
  • 269 mm monthly rainfall in September in Lake District (Grasmere)269
    269 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Lake District (Grasmere)3
    3 (Moderate) UV index

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The September weather guide for Lake District (Grasmere) 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.

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Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in the Lake District in September?

Daytime temperatures usually reach 14°C in Grasmere, Lake District in September, falling to 8°C at night.

How sunny is it in the Lake District in September?

There are normally 4 hours of bright sunshine each day in Grasmere, Lake District in September - that's 29% of daylight hours.

Does it rain in the Lake District in September?

There are usually 18 days with some rain in Grasmere, Lake District in September and the average monthly rainfall is 269mm.

Lake District September sunrise & sunset times

Browse the sunrise and sunset times for Lake District in September 2025. Select a month to view Lake District sunrise and sunset times for the next 12 months. The Lake District sunrise and sunset times shown below are for Grasmere.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:20 19:03
Monday, 15th September 2025 05:45 18:28
Tuesday, 30th September 2025 06:13 17:50

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