While warm summer days are something many of us look forward to, prolonged periods of extreme heat can pose serious health risks. On average, over 2,000 people in England die each year due to heat-related causes. We want to help you, and your loved ones stay safe during hot weather.
Who is most at risk?
Heat can affect anyone, but some people are more vulnerable:
- Older adults
- People with long-term health conditions (such as heart or respiratory illnesses)
- Babies and young children
- People who are unable to keep themselves cool
- Those living or working in very warm environments
As climate change continues, heatwaves are expected to become more frequent and intense. Let’s all do our part to protect ourselves and one another.
Understanding the Weather Alerts: Yellow Alerts Matter
When heat alerts are issued, it’s easy to focus on red and amber warnings because they often receive more media attention. However, yellow alerts still signal a real risk, especially to vulnerable individuals.
Heat mortality reports from 2023 and 2024 reveal that significant heat-related deaths happened even during yellow alert periods. That means action is necessary at every alert level — not just when extreme temperatures are forecast.
Remember: Heat doesn’t have to be record-breaking to be dangerous
You can check the different Weather Alert meanings here: Weather warnings guide - Met Office
Why Heatwaves Can Be Dangerous
Heat can trigger several health issues, including:
- Dehydration — not drinking enough water
- Overheating — which can worsen existing health problems
- Heat exhaustion and heatstroke — serious conditions that require immediate attention
How to Stay Cool and Safe
Follow these simple steps to reduce health risks during hot weather:
Action | Tip |
| Look out for others | Check on older people, those with health conditions or who live alone |
| Stay cool indoors | Close curtains on sun-facing windows and use fans if possible |
| Use outdoor spaces sensibly | Seek shade and avoid overcrowded areas |
| Stay hydrated | Drink plenty of fluids, and limit alcohol intake |
| Avoid peak sun hours | Try not to go out between 11am–3pm when the sun is strongest |
| Dress appropriately | Wear loose, light-coloured clothing and a wide-brimmed hat |
| Wear sunscreen | Apply regularly if spending time outdoors. Apply 20 minutes before entering water to allow it to fully absorb. Water resistant doesn't mean waterproof. Even with “water resistant” formulas, you still need to reapply more frequently. |
| Take breaks | Avoid strenuous activities in the hottest part of the day |
| Cool your skin with water | Take a cool shower or spray water on yourself. Do not swim in open water without a life-guard present. Open water poses unique hazards that are often underestimated. Natural bodies of water like lakes and rivers can be unpredictable and dangerous. |
| Plan ahead when travelling | Take water and check the forecast before leaving home. You can check the weather here: Weather and climate change - Met Office |
| Adjusting your cooking habits can make a noticeable difference in your homes temperature. | Choose low-heat appliances like microwaves, slow cookers or pressure cookers. If using the oven, cook in the cooler evening hours. Use exhaust fans to remove heat and moisture from the kitchen. |
| Enjoy outdoor dining while reducing the burden on indoor cooling systems. | Use a BBQ or outdoor kitchen to keep heat outside. |
| Never leave people or pets in parked cars | Temperatures can rise to dangerous levels very quickly |
Know the signs of heat-related illness
If someone feels unwell in the heat, watch for signs of:
- Dizziness or confusion
- Headache
- Nausea or cramps
- High temperature
These could be signs of heat exhaustion or heatstroke. Learn the symptoms and seek medical advice if needed.
Helpful Resources
The UK Health Security Agency has developed helpful materials such as:
You can also find more information from the NHS:
In addition, Age UK offers a range of free information and advice designed to help older people live well during the summer months and protect themselves when the temperature rises. For more information visit ageuk.org.uk, who help people with information and advice on a broad range of issues such as claiming benefits, exploring housing options, paying for care and support, staying healthy, and making the most of the Internet.
If your home is becoming dangerously hot and affecting your health, please don’t hesitate to seek advice from your GP or a healthcare professional.