Bangor weather in September 2025

Expect 61°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Bangor in September. Check more long-term weather averages for Bangor in September before you book your next holiday to Wales in 2025/2026.

  • 61°F maximum daytime temperature in September in Bangor61
    61°F max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in September in Bangor17
    17 days with some rainfall
  • 50°F minimum night-time temperature in September in Bangor50
    50°F min night temperature
  • 13 hours of daylight per day in September in Bangor13
    13 hours of daylight per day
  • No heat & humidity in September in Bangor0
    No heat & humidity
  • 4.8 inches monthly rainfall in September in Bangor4.8
    4.8 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Bangor4
    4 (Moderate) UV index

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The September weather guide for Wales (Bangor) 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 Wales

How warm is it in Bangor in September?

Daytime temperatures usually reach 61°F in Bangor in September, falling to 50°F at night.

How sunny is it in Bangor in September?

There are normally 4 hours of bright sunshine each day in Bangor in September - that's 32% of daylight hours.

Does it rain in Bangor in September?

There are usually 17 days with some rain in Bangor in September and the average monthly rainfall is 4.8 inches.

Bangor September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:26 19:05
Monday, 15th September 2025 05:51 18:32
Tuesday, 30th September 2025 06:17 17:55

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