Larne weather in September 2024

Expect 59°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Larne in September. Check more long-term weather averages for Larne in September before you book your next holiday to Northern Ireland in 2024/2025.

  • 59°F maximum daytime temperature in September in Larne59
    59°F max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in September in Larne17
    17 days with some rainfall
  • 46°F minimum night-time temperature in September in Larne46
    46°F min night temperature
  • 13 hours of daylight per day in September in Larne13
    13 hours of daylight per day
  • No heat & humidity in September in Larne0
    No heat & humidity
  • 4.4 inches monthly rainfall in September in Larne4.4
    4.4 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Larne3
    3 (Moderate) UV index
  • 57°F sea temperature in September in Larne57
    57°F sea temperature

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The September weather guide for Northern Ireland (Larne) 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)  |  Imperial (°F)

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More about the UK

How warm is it in Larne in September?

Daytime temperatures usually reach 59°F in Larne in September, falling to 46°F at night.

How sunny is it in Larne in September?

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

How warm is the sea around Larne in September?

The average sea temperature around Larne in September is 57°F.

Does it rain in Larne in September?

There are usually 17 days with some rain in Larne in September and the average monthly rainfall is 4.4 inches.

Larne September sunrise & sunset times

Browse the sunrise and sunset times for Larne in September 2024. Select a month to view Larne sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:31 20:14
Sunday, 15th September 2024 06:56 19:39
Monday, 30th September 2024 07:24 19:01

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