Spring this year was the warmest Ireland has ever experienced in 126 years of records held by Met Éireann.
2025 marked the first spring that was more than two degrees higher than the 20th century average for the same period, according to Met Éireann’s Climate Statement for Spring 2025.
The season’s highest temperature was recorded at Athenry, Co Galway, on 30 April with 25.9C reported.
Overall, 23 of 25 weather stations had their warmest spring on record, with only Dunsany, Co Meath, and Dublin Airport recording their second-warmest and third-warmest, respectively.
Of the top five average temperatures for spring on record, four have occurred since 2017, which Met Éireann said reflects the trend of rising seasonal temperatures in line with climate change.
Most weather stations across the country also saw highest total hours of sunshine recorded for the meteorological period covering March, April and May.
It was also the driest spring since 2020 and the 16th driest since the beginning of relevant records in 1941.
Due to the warmer, sunnier and calmer conditions, a marine heatwave developed off the west coast through April and May.
Sea surface temperatures climbed to more than 2C warmer than average in some coastal areas and up to 4C warmer than average in offshore areas.
