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 /

    Summer solstice: Longest day of the year is here

07:00
21 June 2025

Summer solstice
Longest day of the year is here

summer solstice
© Shutterstock

Today we mark the summer solstice, the longest day of the year, signalling the start of astronomical summer.

A solstice occurs when one of Earth’s pole reaches its maximum tilt towards the Sun. For those of us in the Northern Hemisphere, it will be the longest of the year, but for those in the Southern Hemisphere, it’s the opposite.

On the summer solstice, the sun travels its longest path after rising, reaching its northernmost point. The precise time of the summer solstice on June 21st is at 03:42 am.

The summer solstice is over 9 hours longer in daylight length than the winter solstice! Make sure you make the most of the additional daylight!

Hottest solstice ever?

In the midst of a heatwave, temperatures are expected to reach up to 33°C. The hottest solstice on record was in 2017 with a high of 34.5°C.

The sun is also at its strongest on the solstice, which means you need to take extra precaution in the sun, especially as the UV Index is forecast to reach high levels across some parts of England and Wales.

Check out the UV Index hereread more

While meteorological summer began on June 1st, and will last until August 31st, astronomical summer relies on the tilt of the Earth and its rotational axis, which will end on September 22nd, when the autumn equinox then occurs.

Ryan Hathaway
More on the topic
Schools closed and more heat disruption. Red warnings now live. . . Wednesday, 24 June 2026
Split image showing a person using a sun umbrella near the Elizabeth Tower in London on the left and a temperature map of England on the right with widespread red heat, temperatures reaching 35°C near London, and a large thermometer icon.
Wednesday, 24 June 2026

Red warnings now live

Schools closed and more heat disruption
Super typhoon near the Philippines. Gusts of up to 155 mph. . . Tuesday, 23 June 2026
WindRadar showing Typhoon MEKKHALA east of Taiwan. A clearly visible eye, surrounded by areas of extremely high wind speeds.
Tuesday, 23 June 2026

Gusts of up to 155 mph

Super typhoon near the Philippines
50 years since historic 1976 heatwave. Three-month hot spell. . . Tuesday, 23 June 2026
Black-and-white photograph from the 1976 UK heatwave showing a crowded outdoor swimming area packed with people bathing, wading, and sitting along the water's edge during extreme summer heat.
Tuesday, 23 June 2026

Three-month hot spell

50 years since historic 1976 heatwave
All weather news
This might also interest you
New records for England and Wales. Broken again tomorrow?. . . Thursday, 25 June 2026
Temperature map of southwest Britain on 25.06 showing extreme heat across southern Wales and southwest England, with Bute Park in Cardiff highlighted at 34.2°C and Yeovilton at 36.4°C amid widespread deep red heat zones.
Thursday, 25 June 2026

Broken again tomorrow?

New records for England and Wales
Mixed conditions on an unsettled week. Your weather - Your shots. . . Sunday, 2 November 2025
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
Turbulent weather in the Canary Islands. Storm and rain. . . Friday, 12 December 2025
Weather graphic showing rain and wind fields over the Canary Islands and a central warning symbol.
Friday, 12 December 2025

Storm and rain

Turbulent weather in the Canary Islands
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