Ballymena weather in May 2025

Expect 13°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Ballymena in May based on long-term weather averages. There is usually 17 days with some rainfall and 68 mm of average monthly rainfall in May.

  • 13°C maximum daytime temperature in May in Ballymena13
    13°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in May in Ballymena17
    17 days with some rainfall
  • 5°C minimum night-time temperature in May in Ballymena5
    5°C min night temperature
  • 16 hours of daylight per day in May in Ballymena16
    16 hours of daylight per day
  • No heat & humidity in May in Ballymena0
    No heat & humidity
  • 68 mm monthly rainfall in May in Ballymena68
    68 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Ballymena5
    5 (Moderate) UV index

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The May weather guide for Northern Ireland (Ballymena) 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 Ballymena in May?

Daytime temperatures usually reach 13°C in Ballymena in May, falling to 5°C at night.

How sunny is it in Ballymena in May?

There are normally 6 hours of bright sunshine each day in Ballymena in May - that's 36% of daylight hours.

Does it rain in Ballymena in May?

There are usually 17 days with some rain in Ballymena in May and the average monthly rainfall is 68mm.

Ballymena May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:45 20:01
Friday, 16th May 2025 04:16 20:28
Saturday, 31st May 2025 03:55 20:51

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