It beats 2022, which was the warmest year previously.
2023 was the warmest on record in Ireland.
Met Éireann's annual report says the average temperature was greater than 11 degrees Celsius for the first time.
2022 was previously the warmest year on record.
June was the warmest month ever recorded, while March and July were the wettest.
The highest temperature recorded this year came on September 8th in Lullymore Nature Centre in Kildare, where it was 29.1 degrees Celcius.