Home
Weather London
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Career
    Home / Editor's Pick /

    33.5 °C and still rising - Hottest May day on record

12:29
25 May 2026

33.5 °C and still rising
Hottest May day on record

Heat map centered on London showing intense red temperatures across southeast England, with Heathrow highlighted at 33.5°C and nearby cities around 30–32°C.
A new record temperature for the month of May.

It's officially the hottest May day in recorded history after a reading of 33.5 °C in London on Monday.

This high was recorded just after midday, before temperatures reach their peak meaning the final record-high will inch even higher. This passes the existing high of 32.8 °C.

Not only is it the hottest day in May, it's also a new record for any bank holiday Monday, besting the high of 33.3 °C on the August bank holiday in 2019.

Across the UK, heatwave thresholds have been met. Despite the heat there, in Ireland highs are still lower with a high of around 27 °C in Limerick on Monday.

Temperatures must surpass 25 °C for five consecutive days on the Emerald Isle for a heatwave to be declared which is not going to happen. The warmth breaks there on Thursday.

To make the sticky conditions worse, there are water shortages in some areas. In Kent, bottled water stations have been set up with around 500 properties with no water supply.

Daily highs of around 33 °C are expected on the bank holiday Monday with many people out in the strong sunshine. Keep hydrated and apply plenty of sunscreen!

Staying sun safe in the heatwaveread more
Ryan Hathaway
More on the topic
Weather map of the USA showing an active thunderstorm front between Kansas City and Minneapolis. Numerous lightning symbols indicate severe thunderstorms, along with a severe weather warning symbol.
Monday, 18 May 2026

Tornadoes possible

Dangerous thunderstorm front over the US
Nighttime marina with sailboats and glowing harbor lights beneath electric-blue noctilucent clouds stretching across the dark twilight sky.
Saturday, 23 May 2026

A silvery haze in the sky

The season of the luminous night clouds
Temperature Radar forecast for Friday in Europe. Very high temperatures across Spain and Eastern Europe, slightly cooler in the north and west.
Tuesday, 19 May 2026

Over 30 degrees in places

Early summer gets underway in Europe
All weather news
This might also interest you
plit image showing a double rainbow over a rocky shoreline on the left and sheep grazing in a green field under stormy clouds on the right.
Sunday, 2 November 2025

Your weather - Your shots

Mixed conditions on an unsettled week
Split image showing a person in a yellow jacket struggling against strong winds and heavy rain on a street at night on the left, and an Irish wind forecast map on the right with red and purple shading, gusts up to 75 mph, and a wind warning icon, divided by a curved white line.
Saturday, 24 January 2026

On this day...

Historic Storm Éowyn arrives
Split UK map showing warm temperatures up to 21 degrees in orange on the left and clear sunny conditions with temperatures from 12 to 18 degrees on the right, with sun icons across the country.
Thursday, 23 April 2026

Spring-like outlook

Bright and warm conditions take hold
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwittertikToklinkList