June 2025 has been officially declared the warmest June on record for the United Kingdom, with provisional statistics from the Met Office confirming unprecedented temperatures across all four nations. The average mean temperature for the month across the UK reached an extraordinary 16.6°C. This figure narrowly surpasses the previous record of 16.5°C, which was jointly held by June 1940 and June 1976, marking a significant milestone in the nation's climate records.
The record-breaking warmth was not confined to a single region. England, Scotland, Wales, and Northern Ireland each experienced their hottest June since records began. For England, the average mean temperature was 17.3°C, exceeding the 1976 record of 17.0°C. Scotland recorded an average of 14.8°C, surpassing its previous high of 14.7°C from 1940. Wales reached 16.5°C, slightly higher than its 1976 record of 16.1°C, and Northern Ireland's average of 16.1°C beat its 1976 record of 15.6°C. These consistent highs across the board underscore the pervasive nature of the recent heat.
While temperatures soared, rainfall patterns presented a more varied picture. Scotland experienced a significantly wetter June, with 50% more rainfall than its long-term average for the month. This led to localised flooding in some areas. In contrast, parts of England, particularly the south-east, saw drier conditions, with some regions receiving less than 70% of their average June rainfall. Wales and Northern Ireland experienced rainfall closer to their respective averages, though with regional variations.
The Met Office has highlighted that the exceptional warmth observed in June 2025 is consistent with the broader trend of global warming. Scientists from the organisation have indicated that human-induced climate change is making such extreme heat events more likely and more intense. Specific weather patterns, including a persistent high-pressure system over the UK for much of the month, also contributed to the sustained high temperatures and limited cloud cover, allowing for prolonged periods of sunshine and heat accumulation.
Looking ahead, the Met Office continues to monitor weather patterns closely. While the immediate forecast for early July suggests a return to more typical summer temperatures, the long-term outlook indicates a continued likelihood of warmer and potentially more extreme weather events in the coming years. The organisation stresses the importance of understanding and adapting to these changing climatic conditions, urging individuals and communities to prepare for future heatwaves and varied rainfall patterns.