Hottest June on Record Confirmed by the Met Office in the UK

By | July 3, 2023

In a historic announcement, the Met Office has confirmed that the UK experienced its hottest June on record. The average monthly temperature reached a scorching 15.8°C, surpassing the previous highest average temperatures recorded in 1940 and 1976 by 0.9°C. This meteorological milestone has raised concerns about the amplified risk of extreme heat events due to climate change. In this article, we delve into the significance of this record-breaking June, its implications, and the role of climate change in shaping our weather patterns.

Breaking Records Across the UK

The UK heatwave shattered existing records, with 72 out of 97 regions collecting temperature data experiencing unprecedented highs. Not only did the UK as a whole set a new record, but each constituent country—England, Scotland, Wales, and Northern Ireland—also observed their warmest June since temperature records began in 1884. Mark McCarthy, the Met Office’s Climate Science Manager, expressed, “It’s officially the hottest June on record for the UK, for mean temperature as well as average maximum and minimum temperature.”

Climate Change and Increased Likelihood

Scientists emphasize that climate change has significantly heightened the chances of surpassing previous temperature records. The likelihood of exceeding the 1940/1976 joint record of 14.9°C in June has at least doubled since the 1940s. Natural variability combined with the background warming caused by human-induced climate change has driven the probability of reaching record-high temperatures. This notable increase in temperature has far-reaching consequences for society and the environment.

Implications of Rising Temperatures

A seemingly modest increase of 0.9°C holds substantial significance. This rise affects both daytime and nighttime temperatures across the entire UK. Paul Davies, the Met Office Climate Extremes Principal Fellow and Chief Meteorologist, highlights the importance of this temperature shift in a warming climate, emphasizing its consequential impacts on society. Furthermore, the sustained heat experienced throughout the month differentiated this June from the previous year’s one-off high temperature of 40.3°C.

Dry Spells and Precipitation Deficits

Accompanying the scorching temperatures, rainfall was scarce during June, with only 68% of the average precipitation received. Wales, in particular, faced extreme dryness, receiving just over half of its typical monthly rainfall. These prolonged dry spells can have detrimental effects on ecosystems, wildlife, and agriculture, further exacerbating the consequences of the heatwave.

Climate Change and Extreme Weather Events

The rising global temperatures, driven by human activities and the emission of greenhouse gases, are causing an increase in extreme weather events worldwide. Since the Industrial Revolution, the Earth has warmed by approximately 1.1°C. The impact of climate change is undeniable, with last year marking the first time the UK experienced temperatures exceeding 40°C—a feat that would have been nearly impossible without climate change. These changing weather patterns align with scientific predictions, which forecast longer heatwaves and extended periods of unusually warm weather.

Environmental Consequences

The effects of the scorching June weather reverberated through wildlife and natural habitats. Environmental organizations raised concerns over fish deaths and wilting of flowering plants. The sustained heat and drought-like conditions strained ecosystems, emphasizing the vulnerability of various species to extreme weather events caused by climate change. It serves as a stark reminder of the urgent need for climate action to protect and preserve our natural environment.


The record-breaking June temperatures experienced in the UK are a stark indicator of the escalating impact of climate change on our weather patterns. With a significant increase in the likelihood of surpassing previous records, we must acknowledge the role of human-induced global warming in driving extreme heat events. The implications of rising temperatures, coupled with decreased precipitation, pose serious challenges for ecosystems, wildlife, and society as a whole. Urgent action is required to mitigate climate change and protect our planet for future generations.

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