Longford weather in September 2025

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

  • 16°C maximum daytime temperature in September in Longford16
    16°C max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in September in Longford19
    19 days with some rainfall
  • 8°C minimum night-time temperature in September in Longford8
    8°C min night temperature
  • 13 hours of daylight per day in September in Longford13
    13 hours of daylight per day
  • No heat & humidity in September in Longford0
    No heat & humidity
  • 97 mm monthly rainfall in September in Longford97
    97 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Longford4
    4 (Moderate) UV index

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The September weather guide for Ireland (Longford) 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 Longford in September?

Daytime temperatures usually reach 16°C in Longford in September, falling to 8°C at night.

How sunny is it in Longford in September?

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

Does it rain in Longford in September?

There are usually 19 days with some rain in Longford in September and the average monthly rainfall is 97mm.

Longford September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:40 19:21
Monday, 15th September 2025 06:05 18:47
Tuesday, 30th September 2025 06:31 18:10

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