A summer temperature record and a revised daily maximum
Met Office provisional figures put the UK’s summer 2026 mean temperature at 16.5°C, 0.4°C above summer 2025. Seasonal mean temperature and a station’s daily maximum describe different measurements.
The article records a 17 September update to the season’s daily maximum after newly received manual-station data. Revisions can improve an observation record; record the changed value and reason rather than silently overwriting it.
Use the evidence
Compare your reasoning with guidance
A seasonal mean aggregates temperatures across the season and a defined area. One station-day maximum measures a local extreme. The season can be consistently warm without its single hottest day being the highest ever recorded.