Mild start to November sees temperature records broken

Mild Start to November Breaks Temperature Records

The beginning of November 2025 has seen an unusual series of new high daily minimum temperature records across the UK, with numerous weather stations reporting significant warmth. This exceptional overnight heat follows an October that was already warmer than usual, reflecting a shifting meteorological pattern.

October 2025 Set the Stage

The average temperature for October 2025 was provisionally 0.7°C above the 1991–2020 average. Scotland and Northern Ireland experienced slightly higher temperatures compared to other regions. This established a warm baseline heading into November.

Warm Air Flow and Cloud Cover Influence November

At the start of November, a southerly flow of warm air spread across the UK. Together with cloudy skies, this pattern trapped heat overnight, causing unusually high daily minimum temperatures. The daily minimum temperature denotes the lowest temperature recorded during a 24-hour period from 09:00 UTC to 09:00 UTC of the following day, typically occurring in the early morning hours.

Record-Breaking Bonfire Night 2025

Bonfire Night on 5th-6th November 2025 was unprecedentedly mild.

“Temperatures overnight only dropped to 14.4℃ at Teddington in London, provisionally making it the mildest Bonfire Night on record.”

Such warmth highlights the broader trend of rising minimum temperatures affecting weather patterns across the UK.

Author's summary: Early November 2025 witnessed record-breaking overnight warmth in the UK, driven by October's elevated temperatures and a persistent southerly airflow trapping heat during cloudy nights.

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Met Office Met Office — 2025-11-07

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