Ireland's Hottest Summer on Record: 2025 Exceeds 1976 and 1995
Ireland's warmest summer on record occurred in 2025, surpassing 1976 and 1995. This was due to dry soils, a marine heatwave, and warmer nights. The 1976 summer recorded 32.5 degrees, while 1995 saw 31.5 degrees and prompted water management discussions.
Ireland experienced its warmest summer on record in 2025, surpassing the notable summers of 1976 and 1995. While 1976 and 1995 featured extended periods of intense heat, the 2025 record was driven by factors like dry soils from the warmest spring on record, a marine heatwave, and persistent warmer nights due to elevated sea surface temperatures.
The summer of 1976 saw Ireland's highest 20th-century temperature: 32.5 degrees at Boora, Co Offaly, on June 30th. This occurred during two heatwaves, one lasting nine days (June 27th-July 4th) and another 14 days (August 14th-27th), with temperatures consistently above 25 degrees. It was the driest summer in 85 years, leading to an absolute drought in most areas, though no water rationing occurred.
The summer of 1995 was also exceptionally warm, with mean temperatures 2 degrees above normal. The highest temperature was 31.5 degrees at Oak Park, Carlow, on August 2nd. This period included 27 consecutive days above 25 degrees. Despite being the driest summer on record at several stations, full reservoirs from a wet winter and spring prevented water shortages, though agriculture suffered. Discussions on water management and heat preparedness followed.