Weather and Climate summaries

Overview of weather across the UK for previous months, seasons and years

Those interested in climate change and predictions of future climates should also visit the Climate Change pages.

UK last month

September 2025

In a change from recent months, September was wetter than average for many in the UK. Temperatures were also variable with several cooler spells resulting in an overall temperature slightly below average, bringing an end to the run of warmer than average months. September saw predominantly unsettled weather, with frontal systems bringing rain for much of the first three weeks of the month. There were also periods of strong winds and heavy downpours, sometimes associated with thunderstorms, at several points in the month. Settled conditions crept in with high pressure on the 21^st, but the rain returned on the 27^th, widespread but particularly heavy over the west coast of Scotland. Temperatures were also unsettled, with the first and third weeks seeing above average temperatures while the second and fourth weeks saw below average temperatures. The end of the month in particular saw cooler than average temperatures, with frosts in rural areas.

By mid-month, England, Wales and Northern Ireland had all recorded over 100% of their average September rainfall, and the rain only continued. By the end of the month, Wales had provisionally recorded 174% of the average September rainfall, although not threatening any records. Scotland was relatively drier but still provisionally recorded above average rainfall for the month. The UK overall provisionally saw 132% of the average September rainfall, with much of this in northern England and Wales. Cumbria in particular saw large amounts of rainfall, recording 198% of the average September rainfall and provisionally its fourth wettest September on record. Temperatures overall were slightly below average, as the warmer spells were balanced out by the cooler spells. The UK provisionally recorded an average temperature of 12.8°C, just 0.1°C below the long-term average. Wales was slightly colder, seeing temperatures 0.4°C below the long-term average. Sunshine hours meanwhile were slightly above average, with the UK seeing 110% of the average sunshine hours. England and Scotland saw above average sunshine, but Wales and Northern Ireland were a bit duller than average.

The UK monthly extremes were as follows: A maximum temperature of 27.8°C was recorded at St James’s Park (Greater London) on the 19^th. A minimum temperature of -5.0°C was recorded at Tomintoul (Banffshire) on the 29^th. In the 24 hours ending at 0900 UTC on the 12^th, 87.8mm of rain fell at Achnagart (Ross & Cromarty). A wind gust of 68 knots (78 mph) was recorded at Needles Old Battery (Isle of Wight) on the 14^th.

Regional values for September 2025