Britain experienced its first May heat wave on Monday as temperatures surged across England and Wales. The Met Office warned highs could reach 35°C (95°F), enough to eclipse the 1944 record of 32.8°C set in Teddington. By early afternoon, Teddington already matched that benchmark, prompting officials to label the spell unprecedented for the season.

Eight southeast locations recorded three consecutive days above their local heat‑wave thresholds, meeting the Met Office’s formal definition introduced in 2019. Nighttime lows were equally extreme; south‑London’s Kenley stayed above 19.4°C, a provisional May minimum record. Across western Europe, Spain, France and Germany also broke May highs, underscoring a broader early‑season heat pattern.

Health officials responded with an amber heat alert, the second‑highest tier, covering most of England through Wednesday. The warning signals likely spikes in emergency calls and mortality among seniors and vulnerable patients, especially as many homes lack air‑conditioning. Energy firms anticipate higher demand for refrigeration and grid strain, while retailers see a surge in sales of fans and cold‑drink stock.

Investors watch utility earnings as heat‑driven consumption could boost short‑term revenues but also raise concerns about capacity limits. Regulators may revisit summer‑season planning after this early extreme.