See how hot it could get in your area during future heatwaves

Britain has just weathered a record heat event, and climatologists warn that these temperatures could become the new normal for summers in the coming decades. Understanding what this might look like where you live helps you prepare, plan, and protect loved ones. Here’s how to interpret the projections, what to expect in different regions, and practical steps you can take now.

What the projections are telling us

Across climate models, the overarching pattern is clear: summers are getting hotter as greenhouse gas concentrations rise. Even with aggressive emission reductions, averages climb; with higher emissions, extreme heat becomes more intense, more frequent, and lasts longer. An important part of the story is the cooling that used to ease heat at night—much of the fear today comes from warm nights that offer little relief. In short, heatwaves are not just hotter; they’re more stubborn and neighborhood-specific in their impact.

Regional outlook: how your area could be affected

• Expect more frequent extreme daytime highs and warmer nights. The combination of heat and humidity, plus the urban heat island effect, can make cities feel significantly hotter than surrounding countryside.
• Fewer super-rare heat events than the south, but heatwaves could become longer and more persistent, increasing pressure on health services and infrastructure.
• Sea breezes may offer some moderation, yet heatwaves can still push temperatures into uncomfortable ranges, with humidity amplifying perceived heat.

It’s important to note that there’s uncertainty in any projection. Different models and scenarios produce a range of outcomes. The trend to watch is the rise in both average summer temperatures and the intensity, frequency, and duration of heatwaves, with notable regional differences.

How to read local projections

• Many forecasts describe how often a heat event of a given intensity might occur in the future compared with today. What was once rare could become a more common event.
• Long heatwaves and warm nights have outsized health and energy implications, even if daytime highs aren’t the absolute extreme.
• Projections come with bands of uncertainty. Use the central tendency for planning, but respect the upper and lower bounds in risk assessments.

Why this matters beyond temperatures

Higher heat isn’t only about scorching days. It affects health across populations, strains energy grids, disrupts transport, and can degrade air quality. Schools, hospitals, and workplaces may need to adjust operations, while homeowners and communities face decisions about cooling, shading, and outdoor activity windows. Planning now means less disruption when hotter summers arrive more regularly.

Actions for individuals and communities

• heed heat warnings and plan outdoor activities for cooler parts of the day.
• keep water accessible, use shade, fans, and air conditioning efficiently during heat events.
• improve ventilation, insulation, and shading; consider trees, green walls, and reflective surfaces to reduce indoor heat.
• establish cooling centers, check on vulnerable neighbors, and support urban greening projects that reduce overall temperatures.
• anticipate higher cooling needs and explore energy-efficient upgrades to manage costs and reliability.

Looking ahead

Hot summers aren’t just a weather upswing; they signal a shift in how communities plan, adapt, and protect their residents. By understanding how heat could unfold in your area and taking proactive steps, you can reduce health risks, safeguard infrastructure, and create cooler, more resilient neighborhoods for the decades ahead.