Thinking about the next heatwave? Prepare for more rain first
Thinking about the next heatwave? Prepare for more rain first
Thinking about the next heatwave Prepare - As the UK braces for the start of meteorological summer, weather patterns have shifted dramatically, bringing cooler and wetter conditions to parts of the country. A recent heatwave, which set records across western Europe in late May, has been replaced by a stronger jet stream that has ushered in unsettled weather. This transition is expected to persist for the coming week, with Saturday marking a return to rain and showers. Meanwhile, unseasonably high winds have also been reported, prompting the Met Office to issue a yellow wind warning for southern Britain, which remains in effect into the evening.
Adverse Conditions Disrupt Events
Tree growth during the current growing season has raised concerns about the safety of outdoor activities. The final day of the Royal Cornwall Show was canceled due to the impact of these weather conditions. The Met Office’s warning highlights the potential for trees to be in full leaf, increasing the risk of damage from strong gusts. This forecast serves as a reminder that even as summer begins, the weather remains unpredictable and prone to sudden changes.
"The chance of a wet season [summer] are slightly higher than normal,"
according to the Met Office’s seasonal outlook. By Sunday morning, rain is anticipated to spread further into Northern Ireland and western Scotland, gradually moving eastward throughout the day. Southern regions, under a ridge of high pressure, may experience drier conditions, allowing parts of the Midlands, East Anglia, and south-east England to remain relatively dry and warmer when the sun breaks through. However, the rain band is expected to shift south and east again by Sunday night and Monday morning, ensuring a wet start to the upcoming workweek in eastern areas. Showers will follow elsewhere, keeping the weather dynamic.
Tuesday’s forecast indicates turbulent conditions, with regular showers that intensify by afternoon into heavy downpours, hail, and thunderstorms. This suggests a potential for extreme weather, even as the week progresses. By Wednesday, the frequency of showers may ease, but another area of low pressure is forecasted to move in by Thursday, bringing widespread rain once more. These fluctuations underscore the complexity of the UK’s weather system, even in the early stages of summer.
Summer Outlook and Heatwave Potential
The Met Office’s three-month summer outlook, released on 1 June—the official start of meteorological summer—notes an increased likelihood of heatwaves and heat-related impacts throughout the season. This comes after a record-breaking late spring heatwave, which saw temperatures soar to unprecedented levels. In Kew Gardens, London, a new all-time May record of 35.1°C was set, surpassing the previous record of 32.8°C from 1944. Yellow and amber heat health alerts were also issued for the first time this year, highlighting the severity of the situation.
"higher-than-normal chances of hotter weather during the month,"
the Met Office emphasized, suggesting that the summer months could see above-average temperatures. MeteoGroup’s seasonal forecast aligns with this, indicating potential for significant temperature spikes and heat bursts across the UK and parts of Europe. These projections are shaped by the broader context of a warming climate, which has doubled the probability of a hotter-than-normal summer compared to the 1991–2020 reference period.
Despite these concerns, there is uncertainty regarding summer rainfall totals. Forecasters from the Met Office and MeteoGroup have differing views, with the former predicting an average to wetter-than-normal season and the latter suggesting a drier period overall. MeteoGroup’s data points to below-average precipitation in England and Wales, particularly through June and July, while Scotland may see more typical rainfall levels. This divergence in predictions reflects the challenge of forecasting long-term weather trends, even with advanced modeling tools.
Historical Context and Drought Impacts
Recent years have shown variability in rainfall patterns, complicating long-range forecasts. In 2025, for instance, the UK’s average summer rainfall was 84%, but regional differences were stark. Northern and western areas received much more than average, while central, eastern, and southern regions saw rainfall below expectations—less than half of the typical amount. This disparity led to drought declarations across much of England and subsequent hosepipe bans as water demand surged.
Water levels in reservoirs across England dropped significantly in September 2025 following a dry spring and summer, underscoring the long-term effects of inconsistent weather. While the current summer may bring relief with increased rainfall, the Met Office cautions that the overall pattern remains uncertain. The combination of a warmer climate and fluctuating weather systems could mean that the UK experiences both extreme heat and heavy rain within the same season, challenging traditional weather expectations.
As the summer progresses, the interplay between these factors will shape the outlook. While some models suggest a higher chance of heatwaves, others emphasize the possibility of wetter conditions. This variability highlights the importance of staying updated with the latest forecasts, as the weather remains a key topic for discussion. The Met Office’s warning serves as a reminder that the UK’s climate is evolving, and preparedness for both extreme heat and heavy rain is essential.
With the season’s trajectory still unclear, residents are advised to monitor weather updates closely. The current unsettled conditions provide a glimpse into the potential challenges ahead, as the UK navigates a summer that may combine both heat and rain. Whether the pattern leans toward record-breaking warmth or a cooler, wetter season, the coming months will test the resilience of both natural ecosystems and human infrastructure.