Newry weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Newry in September. Check more long-term weather averages for Newry in September before you book your next holiday to Northern Ireland in 2025/2026.

  • 16°C maximum daytime temperature in September in Newry16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in September in Newry17
    17 days with some rainfall
  • 9°C minimum night-time temperature in September in Newry9
    9°C min night temperature
  • 13 hours of daylight per day in September in Newry13
    13 hours of daylight per day
  • No heat & humidity in September in Newry0
    No heat & humidity
  • 89 mm monthly rainfall in September in Newry89
    89 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Newry3
    3 (Moderate) UV index

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The September weather guide for Northern Ireland (Newry) 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 Newry in September?

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

How sunny is it in Newry in September?

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

Does it rain in Newry in September?

There are usually 17 days with some rain in Newry in September and the average monthly rainfall is 89mm.

Newry September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:34 19:16
Monday, 15th September 2025 05:59 18:41
Tuesday, 30th September 2025 06:26 18:04

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