Greenock weather in May 2025

Expect 13°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Greenock in May. Check more long-term weather averages for Greenock in May before you book your next holiday to Scotland in 2025/2026.

  • 13°C maximum daytime temperature in May in Greenock13
    13°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in May in Greenock17
    17 days with some rainfall
  • 5°C minimum night-time temperature in May in Greenock5
    5°C min night temperature
  • 16 hours of daylight per day in May in Greenock16
    16 hours of daylight per day
  • No heat & humidity in May in Greenock0
    No heat & humidity
  • 119 mm monthly rainfall in May in Greenock119
    119 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Greenock5
    5 (Moderate) UV index
  • 10°C sea temperature in May in Greenock10
    10°C sea temperature

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The May weather guide for Scotland (Greenock) 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 Scotland

How warm is it in Greenock in May?

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

How sunny is it in Greenock in May?

There are normally 6 hours of bright sunshine each day in Greenock in May - that's 34% of daylight hours.

Is the sea cold around Greenock in May?

The average sea temperature around Greenock in May is 10°C.

Does it rain in Greenock in May?

There are usually 17 days with some rain in Greenock in May and the average monthly rainfall is 119mm.

Greenock May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:35 19:59
Friday, 16th May 2025 04:04 20:28
Saturday, 31st May 2025 03:42 20:52

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