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Belfast — weather in May, water temperature

13.5°C Daytime temperatures 7.7°C Night temperatures 6 Sunny days 15.2-16.9 Sun (hours) 5 Rainy days 70.4 mm Precipitation 10°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 22.5°C — 25 May 2017.
The maximum night temperature 14.5°C — 26 May 2019.
The minimum daily temperature 6°C — 17 May 2020.
The minimum night temperature -1.5°C — 6 May 2021.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2013 2012 2011
The warmest water 11.9 °C — 31 May 2021. The coldest water 7.6 °C — 2 May 2013.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 94.5 mm — August. Minimum precipitation 51.4 mm — April.
Wind speed, km / h
Maximum wind speed 21.7 km / h — February. Minimum wind speed 13.4 km / h — July.
Number of hours of sunshine
The maximum number of hours of sunshine per day 6.7 h. — May. The minimum number of hours of sunshine per day 2.7 h. — December.
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