Mild start to November sees temperature records broken

Mild Start to November Sees Temperature Records Broken

The beginning of November 2025 has seen a remarkable series of record-breaking daily minimum temperatures across the UK. Dozens of weather stations reported unusually mild conditions, continuing the warm trend that began in October.

October 2025 had already been warmer than average, setting the backdrop for November’s exceptional temperatures. The UK’s average temperature for October was around 0.7°C above the 1991–2020 norm, with Scotland and Northern Ireland experiencing slightly higher anomalies than the rest of the country.

Causes of the Unusual Warmth

As November began, a warm southerly air flow spread across the UK. Combined with extensive cloud cover, this weather pattern helped retain heat overnight, leading to elevated nighttime temperatures. This resulted in an unusually mild start to the month.

Understanding Daily Minimum Temperatures

The daily minimum temperature refers to the lowest observed temperature during a 24-hour period from 0900 UTC to the following 0900 UTC. The date associated with this measurement marks the end of that period. Typically, the lowest readings occur in the early morning hours.

Record-Breaking Bonfire Night

Bonfire Night 2025 was record breaking. Temperatures overnight only dropped to 14.4℃ at Teddington in London, provisionally making it the mildest Bonfire Night on record. The previous record for the night of 5th–6th November was 13.9℃ at Gordon Castle, Scotland, in 1938.

These conditions highlight a broader trend of unseasonably warm autumn nights across the UK, emphasizing the ongoing shifts in regional weather patterns.

Author’s Summary

The first half of November 2025 brought record-high night temperatures to the UK, with Teddington marking the warmest Bonfire Night ever recorded at 14.4℃.

Met Office — 2025-11-06