Some A&Es in north London are experiencing waits of up to 11 hours during the warm weather.

NHS North West London has said that its A&Es are “busier than usual” with people experiencing breathing problems after warm weather and a high pollen count.

The body has urged patients to call 111 unless it's an emergency.

It comes after London experienced its hottest day of the year on Saturday (June 10), with the mercury topping 30C.

Temperatures are set to remain in the high 20s for the rest of the week.

The capital has also been experiencing a very high pollen count over the last few days.

The NHS North West London website said: “Health issues related to the current warm weather are causing our A&Es to be busier than usual, with waits of up to 11 hours in A&Es at the moment.

“A&E is for life threatening emergencies.  There are lots of NHS services that can help you. Knowing where to go, and when, will help you get the right care when you need it.

“Your local high street pharmacy can provide advice and over the counter medication to help with hayfever.  You can also contact your GP surgery or call 111 when your GP is closed.”

The trust also issued advice to help patients from becoming unwell during the hot weather.

Tips for coping in hot weather

  • Keep out of the heat if you can
  • If you have to go outside, stay in the shade especially between 11am and 3pm, wear sunscreen, a hat and light clothes, and avoid exercise or activity that makes you hotter
  • Cool yourself down, have cold food and drinks, avoid alcohol, caffeine and hot drinks, and have a cool shower or put cool water on your skin or clothes
  • Keep your living space cool, close windows during the day and open them at night when the temperature outside has gone down

Tips if hot weather sets off your asthma

  • Keep taking your regular preventer inhaler so you’re less likely to get symptoms, and carry your reliever inhaler with you at all times so you’re ready if symptoms do come on
  • Go for regular asthma reviews to check you’re on the right meds for you, and you’re taking your inhalers in the best way to get the benefits through the summer months
  • Use your written asthma action plan so you know what to do if hot weather triggers symptoms
  • If you’re using your reliever inhaler three or more times a week, or you’ve noticed the hot weather has made your symptoms worse, book an extra catch-up with your doctor or asthma nurse
  • Keep inhalers in a cool place out of direct sunlight so they continue to work well, try keeping your reliever in a cool bag when you’re out and about on a hot day, don't add any ice to the bag though, because your inhaler needs to be kept dry
  • Keep an eye on pollen forecasts and find out more about why staying on top of your hayfever symptoms with antihistamines is good for your asthma too
  • Plan any outdoor activities for earlier in the day when the air quality tends to be better, including exercise