Wembley Stadium has new rules for Harry Styles' concerts because of the UK heatwave. The UK is very hot now, and temperatures will be very high.

There is a warning for very hot weather from London to Swansea. Temperatures in London will be 33°C when Harry performs.

Harry's concerts will happen as planned, but Wembley Stadium has changed its water bottle rules.

Harry will perform in London tonight.

Wembley Stadium has given new guidance because of the weather.

People can bring hard plastic or metal bottles into the stadium. They can also bring empty soft plastic bottles. There are places to refill bottles for free.

Water is for sale at the bars, but it is now cheaper. Fans can also get free sun protection.

The stadium advises fans to drink water, take breaks, and wear the right clothes.

Fans should not arrive too early and should not drink too much alcohol. They should drink water to stay hydrated.

Wembley Stadium says people can bring bottles and refill them inside the stadium.

There are safety signs in the stadium, and people should not bring big bags.

The doors will open at different times for different ticket holders. The show will start at 18:55.

The Met Office says it will be 39°C on Thursday, probably in London.

The temperature might be higher than 39°C. It is also very humid, which makes the heat worse.

The heatwave is not just about the temperature, but also the humidity.

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