Buncrana weather in September 2025

Expect 15°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Buncrana in September. Check more long-term weather averages for Buncrana in September before you book your next holiday to Ireland in 2025/2026.

  • 15°C maximum daytime temperature in September in Buncrana15
    15°C max day temperature
  • 3 hours of sunshine per day
  • 21 days with some rainfall in September in Buncrana21
    21 days with some rainfall
  • 9°C minimum night-time temperature in September in Buncrana9
    9°C min night temperature
  • 13 hours of daylight per day in September in Buncrana13
    13 hours of daylight per day
  • No heat & humidity in September in Buncrana0
    No heat & humidity
  • 106 mm monthly rainfall in September in Buncrana106
    106 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Buncrana3
    3 (Moderate) UV index
  • 14°C sea temperature in September in Buncrana14
    14°C sea temperature

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The September weather guide for Ireland (Buncrana) 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 Ireland

How warm is it in Buncrana in September?

Daytime temperatures usually reach 15°C in Buncrana in September, falling to 9°C at night.

How sunny is it in Buncrana in September?

There are normally 3 hours of bright sunshine each day in Buncrana in September - that's 27% of daylight hours.

How warm is the sea around Buncrana in September?

The average sea temperature around Buncrana in September is 14°C.

Does it rain in Buncrana in September?

There are usually 21 days with some rain in Buncrana in September and the average monthly rainfall is 106mm.

Buncrana September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:36 19:22
Monday, 15th September 2025 06:02 18:46
Tuesday, 30th September 2025 06:31 18:08

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