2025 was Ireland's second-hottest year on record - Met Éireann

Last year ranked as the second-warmest year on record for Ireland since 1900, according to Met Éireann.

Meanwhile, the last four years are all ranked in the top five warmest years on record also.

In January, the year began cool, with snow in places, before storm Éowyn brought the highest winds ever recorded.

Winter finished warm overall and was followed by the warmest and sunniest spring on record and the warmest summer on record. Then a mobile Atlantic regime led to the fourth-wettest autumn on record.

Average air temperature

The average annual air temperature for Ireland in 2025 was 11.14°C, which is 1.59°C above the 1961-1990 long-term average (LTA) or 0.97°C above the most recent 1991-2020 LTA.

This makes 2025 the second-warmest year on record, which is only slightly behind the warmest year in 2023, when the average temperature was 11.21°C.

The coldest year on record was in 1919 with 8.73°C. Of the top 10 coldest years, none have occurred since 2000.

The majority of annual rainfall totals were above their 1991-2020 LTA. The first eight months of the year were relatively dry, but the last four months were much wetter, according to Met Éireann.

Annual rainfall totals ranged from 804.2mm (104% of its LTA) at Dublin Airport, Co Dublin, to 1,809.4mm (110% of its LTA) at Valentia Observatory, Co Kerry.

Provisional rainfall data suggests 2025 was the 15th-wettest year since 1941.