The UK Health Security Agency (UKHSA) has issued Heat Health Alerts for London as high temperatures continue this week.

A Red Heat Health Alert is the highest level of alert and is only issued when hot weather could affect the wider population, not just those who are more vulnerable. High temperatures can cause serious health problems and increase the risk of fires and water-related incidents.

Please take extra care during the hot weather and look out for family members, neighbours and friends who may be more vulnerable to the effects of extreme heat.

Staying safe in the heat

Hot weather can affect anyone, but older people, young children, people with health conditions and those living alone are most at risk.

How to stay safe

  • Drink plenty of water and stay hydrated throughout the day
  • Keep your home cool by closing curtains or blinds on windows facing the sun
  • Avoid spending long periods in direct sunlight, especially between 11am and 3pm
  • Wear loose, light-coloured clothing, a hat and sunscreen when outdoors
  • Avoid strenuous activity during the hottest part of the day
  • Never leave children, vulnerable adults or pets in parked vehicles
  • Check in on neighbours, relatives and friends who may be struggling with the heat

Looking out for vulnerable people

Some people are more at risk of becoming seriously unwell during hot weather. This includes:

  • Older people, especially those aged 65 and over
  • Babies and young children
  • People with heart, lung or other long-term health conditions
  • People taking certain medications
  • People with disabilities or reduced mobility
  • People who live alone
  • People experiencing homelessness

Please check on family members, friends and neighbours who may need extra support during the heat.

Simple things can make a big difference:

  • Make sure they have enough water and are drinking regularly
  • Help keep their home cool by closing curtains and blinds during the day
  • Encourage them to avoid the hottest part of the day where possible
  • Check they have any medication they need
  • Look out for signs of heat exhaustion, such as dizziness, headaches, tiredness or feeling sick

If someone becomes seriously unwell or is having difficulty breathing, call 999 immediately.

Water safety

Open water can be dangerous, even during hot weather.

Please remember:

  • Swimming is not permitted in any lakes in the Borough
  • Rivers, lakes and reservoirs can contain hidden hazards and strong currents
  • Cold water shock can affect anyone, regardless of age or swimming ability
  • Children should always be supervised near water
  • In an emergency, call 999 immediately

Before entering any open water, think about the risks and choose safer ways to cool down.

Fire safety and grass fires

The current hot and dry conditions mean that grass, shrubs and other vegetation can catch fire very quickly.

You can help prevent fires by:

  • Not lighting campfires, fire pits or other open fires
  • Following restrictions on barbecues and disposable barbecues
  • Disposing of cigarettes and smoking materials safely
  • Taking litter home, especially glass bottles and cans
  • Reporting fires immediately by calling 999

Even a small spark can spread quickly and cause significant damage to homes, wildlife and open spaces.

Visit The London Fire Brigade for more safety advice

Parks, open spaces and barbecues

We want everyone to enjoy our parks and open spaces safely. Please:

  • Take your rubbish home or use the bins provided
  • Follow all signs and local byelaws
  • Do not use barbecues where they are prohibited
  • Do not light open fires or use naked flames
  • Respect wildlife and the environment

Council officers may take enforcement action where byelaws relating to barbecues, naked flames and open fires are breached.

Support for people sleeping rough

Hot weather can be particularly challenging for people sleeping rough.

Our outreach teams will continue to provide support, including access to drinking water, sun protection and advice. We are also working with local partners to provide access to cool indoor spaces and additional support where needed. 

People identified as vulnerable will be offered accommodation as part of the Council’s support procedures. 

If you are concerned about someone sleeping rough, please contact Thames Reach, so outreach teams can offer assistance.

Waste and recycling collections

Due to the hot weather, waste and recycling collections will start earlier than usual from 23 to 26 June.

To help protect collection crews during periods of extreme heat, collections may begin earlier in the morning and, where necessary, finish earlier in the day.

Please make sure your bins are presented by 5am on your usual collection day. If it's easier, you can put them out the night before to ensure they are collected.

Schools

Parents and carers should check directly with their child's school for any updates to opening hours or arrangements during periods of extreme heat.

Stay informed

Please continue to monitor weather forecasts and follow any advice issued by the UK Health Security Agency, NHS and Met Office website.