All Regions Europe Warning over high pollen and UV levels as temperatures set to hit 29C “Two areas people should be aware of during this warm spell are high pollen and high UV.” My London – WeatherRead More About Author OTW Observer See author's posts Continue Reading Previous: New BBC weather forecast predicts London will be even hotter than Ibiza this weekNext: UK records hottest day of year so far, Met Office says Related Stories When will the ‘mini-heatwave’ end in London after temperatures hit 29C All Regions Europe When will the ‘mini-heatwave’ end in London after temperatures hit 29C April 30, 2025 When London weather could see 30C temperatures this week – earliest point in year on record All Regions Europe When London weather could see 30C temperatures this week – earliest point in year on record April 29, 2025 Met Office London weather expert pinpoints ‘corridor’ where heatwave will hit 29C this week All Regions Europe Met Office London weather expert pinpoints ‘corridor’ where heatwave will hit 29C this week April 29, 2025