Ballymoney weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Ballymoney in September. Check more long-term weather averages for Ballymoney in September before you book your next holiday to Northern Ireland in 2025/2026.

  • 16°C maximum daytime temperature in September in Ballymoney16
    16°C max day temperature
  • 3 hours of sunshine per day
  • 20 days with some rainfall in September in Ballymoney20
    20 days with some rainfall
  • 9°C minimum night-time temperature in September in Ballymoney9
    9°C min night temperature
  • 13 hours of daylight per day in September in Ballymoney13
    13 hours of daylight per day
  • No heat & humidity in September in Ballymoney0
    No heat & humidity
  • 97 mm monthly rainfall in September in Ballymoney97
    97 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Ballymoney3
    3 (Moderate) UV index

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The September weather guide for Northern Ireland (Ballymoney) 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 the UK

How warm is it in Ballymoney in September?

Daytime temperatures usually reach 16°C in Ballymoney in September, falling to 9°C at night.

How sunny is it in Ballymoney in September?

There are normally 3 hours of bright sunshine each day in Ballymoney in September - that's 26% of daylight hours.

Does it rain in Ballymoney in September?

There are usually 20 days with some rain in Ballymoney in September and the average monthly rainfall is 97mm.

Ballymoney September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:33 19:18
Monday, 15th September 2025 05:59 18:43
Tuesday, 30th September 2025 06:27 18:04

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