Waterford weather in September 2025

Expect 63°F daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Waterford in September. Check more long-term weather averages for Waterford in September before you book your next holiday to Ireland in 2025/2026.

  • 63°F maximum daytime temperature in September in Waterford63
    63°F max day temperature
  • 4 hours of sunshine per day
  • 15 days with some rainfall in September in Waterford15
    15 days with some rainfall
  • 48°F minimum night-time temperature in September in Waterford48
    48°F min night temperature
  • 13 hours of daylight per day in September in Waterford13
    13 hours of daylight per day
  • No heat & humidity in September in Waterford0
    No heat & humidity
  • 3.8 inches monthly rainfall in September in Waterford3.8
    3.8 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Waterford4
    4 (Moderate) UV index
  • 59°F sea temperature in September in Waterford59
    59°F sea temperature

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The September weather guide for Ireland (Waterford) 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 Ireland

How warm is it in Waterford in September?

Daytime temperatures usually reach 63°F in Waterford in September, falling to 48°F at night.

How sunny is it in Waterford in September?

There are normally 4 hours of bright sunshine each day in Waterford in September - that's 33% of daylight hours.

How warm is the sea around Waterford in September?

The average sea temperature around Waterford in September is 59°F.

Does it rain in Waterford in September?

There are usually 15 days with some rain in Waterford in September and the average monthly rainfall is 3.8 inches.

Waterford September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:40 19:16
Monday, 15th September 2025 06:03 18:43
Tuesday, 30th September 2025 06:28 18:08

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