UK weather: Britain set for hottest day of the year so far on first official day of spring

The UK is set for its hottest day of the year so far on the first official day of spring.

A person walks their dogs along the beach in sunny weather in Bridlington. Pic: PA

Published 18th Mar 2025

On Thursday, the spring equinox will mark the first day of the new season.

According to Met Office forecasts, Britons are set to enjoy temperatures of 21C (69.8F) on the day, thanks to warmer winds coming from the south.

Check the forecast where you are

This would make it the hottest day of the year so far, beating the previous record of 19.7C (67.4F) set earlier this month.

The best of the warm weather is set for the south, but as far north as Glasgow could see temperatures in the mid-teens still.

Forecasts would place the UK hotter than both Ibiza and Corfu - the latter of which is set for around 16C (60.8F) on Thursday, but warmer temperatures early next week.

Weather over the next few days

Widespread clear skies over yesterday are expected to lead to a cold night into this morning, with temperatures dipping below freezing for the vast majority.

In parts of northern England and Scotland, temperatures could be as low as -9C (15.8F).

But the increasingly strong March sunshine will warm the day up into the high teens.

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Tomorrow, a lower pressure system west of Portugal will continue to allow southerly wind to import higher temperatures into the UK.

So after a frosty start, the day could see the predicted highs of over 20C (68F).