The UKHSA has issued a yellow health alert for heat from Wednesday 18 June at 12:00, to Sunday 22 June 2025 at 18:00.
The Met Office has forecast temperatures of up to 30 degrees Celsius (ºC) on Friday. Data from UKHSA shows that vulnerable groups and health care services can be impacted at these temperatures.
Please ensure you follow the advice below to stay safe and reduce the risk of illness during hot weather.
Stay out of the heat:
- Keep out of the sun between 11am and 3pm
- If you have to go out in the heat, walk in the shade, apply sunscreen and wear a hat
- Avoid extreme physical exertion (including brisk activity/exercise)
- Wear light, loose-fitting cotton clothes
Cool yourself down:
- Have plenty of cold drinks and avoid excess alcohol, caffeine and hot drinks
- Eat cold foods, particularly salads and fruit with a high water content
- Take a cool shower, bath or body wash
- Sprinkle water over the skin or clothing, or keep a damp cloth on the back of your neck
Keep your environment cool:
- Keeping your living space cool is especially important for infants, the elderly or those with chronic health conditions or who can’t look after themselves
- Place a thermometer in your main living room and bedroom to keep a check on the temperature
- Keep windows that are exposed to the sun closed during the day, and open windows at night when the temperature has dropped
- Close curtains that receive morning or afternoon sun. However, care should be taken with metal blinds and dark curtains, as these can absorb heat – consider replacing or putting reflective material in between them and the window space
- Turn off non-essential lights and electrical equipment – they generate heat
- Keep indoor plants and bowls of water in the house as evaporation helps cool the air
- If possible, move into a cooler room, especially for sleeping
- Electric fans may provide some relief if temperatures are below 35°C
If you have a health problem:
- Keep medicines below 25°C or in the refrigerator (read the storage instructions on the packaging)
- Check you know how to seek medical advice if you are suffering from a chronic medical condition or taking multiple medications and become unwell in the heat
If you or others feel unwell:
- Try to get help if you feel dizzy, weak, anxious or have intense thirst and headache; move to a cool place as soon as possible and measure your body temperature
- Drink some water or fruit juice to rehydrate
- Rest immediately in a cool place if you have painful muscular spasms (particularly in the legs, arms or abdomen, in many cases after sustained exercise during very hot weather), and drink oral rehydration solutions containing electrolytes
- Medical attention is needed if heat cramps last more than one hour
- Consult your doctor if you feel unusual symptoms or if symptoms persist
The NHS website has simple advice on heat exhaustion and heatstroke, and dehydration.