Warmer, more spring‑like weather in the UK is most likely from late March, with it feeling noticeably milder through April and more reliably warm by May.

Quick Scoop: When will it get warmer in the UK?

Late February to early March: still up and down

  • The next few weeks are usually choppy : some milder days, but plenty of chilly, grey or wet ones mixed in.
  • Daytime highs often hover in single digits to low teens in much of the UK, so it may feel like winter is dragging on even as daylight increases.

Late March: first proper spring feel

  • Long‑range outlooks for 2026 say a “gradual warming trend” is expected from late March , lining up with the start of meteorological and astronomical spring.
  • Typical UK March daytime temperatures start around 10°C and can reach about 13°C by the end of the month, so you get the first “no big coat” days, especially in the south.

April: more frequent mild days

  • Average daytime highs in April are around 13°C in many areas, which can feel pleasantly mild in sunshine even if nights stay cool.
  • You’re more likely to get runs of dry, calm days as the Atlantic loses its winter punch, though showers and cold snaps are still very possible.

May: reliably warm, first hot spells

  • By May, average daytime highs near 17°C are expected, which for much of the UK is when it starts to feel properly warm more often than not.
  • Some forecasts even flag the chance of an early heatwave pushing temperatures close to 30°C in May, though that’s not guaranteed every year and varies a lot by region.

Bigger picture: 2026 looks on the hot side

  • The Met Office expects 2026 to be among the hottest years on record globally, with UK temperatures likely above long‑term averages and several potential heatwaves in summer.
  • Clocks go forward to British Summer Time on 29 March 2026, often a handy “mental marker” for when evenings start to feel lighter and milder.

TL;DR: Expect a few teasing mild spells before then, but the UK is most likely to feel noticeably warmer from late March, more comfortably mild through April, and reliably warm with possible hot spells by May.🌤️

Information gathered from public forums or data available on the internet and portrayed here.