Lahinch weather in September 2025

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

  • 16°C maximum daytime temperature in September in Lahinch16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in September in Lahinch19
    19 days with some rainfall
  • 9°C minimum night-time temperature in September in Lahinch9
    9°C min night temperature
  • 13 hours of daylight per day in September in Lahinch13
    13 hours of daylight per day
  • No heat & humidity in September in Lahinch0
    No heat & humidity
  • 118 mm monthly rainfall in September in Lahinch118
    118 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Lahinch4
    4 (Moderate) UV index
  • 15°C sea temperature in September in Lahinch15
    15°C sea temperature

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

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

How sunny is it in Lahinch in September?

There are normally 4 hours of bright sunshine each day in Lahinch in September - that's 28% of daylight hours.

How warm is the sea around Lahinch in September?

The average sea temperature around Lahinch in September is 15°C.

Does it rain in Lahinch in September?

There are usually 19 days with some rain in Lahinch in September and the average monthly rainfall is 118mm.

Lahinch September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:48 19:26
Monday, 15th September 2025 06:12 18:52
Tuesday, 30th September 2025 06:37 18:16

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