The United Kingdom is expecting a return of summer heat later this week with temperatures forecast to reach at least 30 °C [1].

This shift marks the first significant heatwave of the summer season. The spike in temperature affects infrastructure and public health planning as the country prepares for higher thermal loads in densely populated areas.

According to the Met Office, the heat is expected to impact the southern and central regions of the UK [2]. The most intense warmth is predicted for southern and southeastern England [3].

Forecasters said that highs of 28 °C and above are expected as the heatwave takes hold [4]. Some areas may see the mercury climb specifically to 30 °C [1].

Seasonal summer heat is the primary driver for this weather pattern, the Met Office said [2]. The warming trend is expected to peak during the upcoming weekend.

Temperatures could reach 30 °C

The return of 30 °C weather in late June highlights the volatility of the UK's summer transition. While these temperatures are seasonal, the concentration of heat in the southeast often strains local transport networks, and increases energy demand for cooling in regions not traditionally built for extreme heat.