Mild Start to November 2025 Breaks Temperature Records in the UK
The beginning of November 2025 has seen an extraordinary wave of new high daily minimum temperature records across the UK, with many weather stations reporting significant overnight warmth. This surge of mild conditions follows an October that was already warmer than usual, reflecting shifting meteorological patterns behind these records.
October's Warm Weather Sets the Scene
October 2025 recorded a mean temperature about 0.7°C above the 1991–2020 average. Scotland and Northern Ireland experienced temperatures slightly higher than those in other parts of the UK, laying the groundwork for November’s exceptional warmth.
Warm Southerly Air Influences November
As November started, a flow of warm air from the south moved across the UK. This southerly pattern, combined with persistent cloudy skies, helped retain heat overnight, causing unusually high daily minimum temperatures.
Understanding Daily Minimum Temperature
The daily minimum temperature is the lowest temperature measured over a 24-hour period from 09:00 UTC to 09:00 UTC the next day. The recorded date corresponds to the end of this interval, since the lowest temperatures usually occur in the early morning hours.
Record-Breaking Bonfire Night 2025
Bonfire Night 2025 set a new record for overnight warmth on November 5th–6th. Temperatures in Teddington, London, only fell to 14.4℃, making it the mildest Bonfire Night on record.
The previous record for this night was 13.9℃, measured at Gordon Castle, Scotland, in 1938.
This exceptional warmth marks a significant milestone in the UK's recent temperature trends.
Summary: Early November 2025 brought unprecedented overnight warmth across the UK, fueled by October’s mild conditions and a persistent southerly air flow, culminating in a record-breaking Bonfire Night temperature.