This heat dome is incredible so early in summer. France has 16 regions on red heatwave alert today, and the Eiffel Tower is closed. Portugal and Spain have already broken their June records with 46°C. Typically, heat builds over July and August. This is a reminder that we are entering a new climate era.
Spain and England have recorded their hottest June ever, as scorching temperatures continue to grip Europe. Spain's weather service Aemet said the "extremely hot" June, with an average temperature of 23.6°C (74.5°F), has pulverised records, surpassing the normal average for July and August. In England, the Met Office said June's mean temperature of 16.9°C set a new record for that month, while the UK as a whole saw its second warmest June since records began in 1884.
Mainland Portugal experienced a record daily temperature for June of 46.6°C. The Mediterranean hit a record 30C.
On Monday, the highest daily UK temperature was recorded at Heathrow Airport in London at 33.1°C. Meanwhile, Wimbledon recorded a temperature of 32.9°C, the tennis tournament's hottest opening day on record. On Tuesday, the UK recorded 34.7°C in St James's Park in London, making it the hottest day of the year so far.
June 2025 was the fourth warmest on record in Ireland, according to the latest monthly climate statement from Met Éireann. June 2025’s average temperature stood at 15.10°C, the fourth highest figure on record going back to 1900. Compared to the long-term average for 1961 to 1991, last month was 1.88°C warmer. It was 1.42°C above the long-term average for the period of 1991 to 2020.
Spring 2025 was the warmest on record for Ireland, with the highest sunshine totals recorded at most stations for the period of March, April and May. As a result of the warmer, sunnier and calmer conditions, a marine heatwave developed off the west coast of Ireland in April and May with sea surface temperatures reaching over 2°C warmer than average in some coastal areas, and up to 4°C warmer than average in offshore areas.
Our climate is definitely undergoing rapid transformation. I'm glad we planted grapes.