September 2025 halted the run of above average months quite abruptly and also ended the run of dry months in a similar manner. The month came in just below 1991 - 2020 average and slightly below the 1961- 1990 average. However since it was within 1C it counts as an average month. Rainfall wise it was the 8th wettest on record.
The month began with temperatures either average to just slightly below with the 4th being a cool day. From the 6th to the 9th saw some pleasant temperatures despite the cloud around. This period recorded the warmest day when 22.7C was reached on the 7th. The first real cool spell started from the 10th to the 16th with the 14th being notable of the cool side as 14.5C was the high. Night times were in single digits, the first run of consecutive days since early June. All in all there were seven consecutive nights with single digits. Summer returned from the 17th to the 19th with 2nd warmest day of 22.6C reached on the 18th and the warmest night 14.4C on the 20th. Soon another notable cool spells started from the 20th lasting right to the end of the month. The coldest nights were in this period with 3.9C on the 22nd and 3.6C on the 23rd. Just missing out on the first ground frost of Autumn. The coldest day occurred on the 20th.
September was a very wet month being the 2nd month of the year to hit 100mm after January. The month started on a wet note 30mm of rain recorded in the 1st four days with 12.3mm on the 3rd courtesy of the first Thunderstorm of the month. After that despite models showing some more widespread rain most of it avoided us this changing from the 14th 17th with a total of 26.4mm falling across 4 days. The major rainfall was on the 20th when 42.2mm fell. Due to the previous dry months this didn't cause any flooding. After that the models showed a totally dry outlook however this changed as the last weekend approached with 6.9mm falling over the weekend and a final 0.6mm on the last day of the month. All in all a welcome change to wetter conditions but more is needed in the coming months to get the hosepipe ban lifted. The Wet September could also killed any chance of the driest year on record. Time will tell on that though.
September was quiet month as expected for the time of year. The winds did hit 45mph on the 15th. Otherwise a quiet month over all.
There was actually a Thunderstorms in September. A fairly weak affair which just managed to produce enough lightning to put it above a thundery shower.
October is looking to resume the unsettled weather with showers or longer spells of rain and near average temperatures. The unsettled weather looks to continue up until mid month when there's a short break as high pressure builds over the country. Low pressure builds in with mild wet weather before the high rebuilds back from the E with dry quiet autumn like weather with sunny spells by day and possibly some fog by night. The high pressure remains in control but drifting to the NW of the UK by the months end so turning cooler. Temperatures around average with rainfall just above average.
| September's Averages, Highs and Lows | ||
|---|---|---|
| Average Temp 14.0C | Last Months Average 13.4C | Difference from average -0.6C |
| Average Max Temp 17.1C | Last Months Average 18.0C | Difference from average 0.9C |
| Average Min Temp 9.6C | Last Months Average 8.8C | Difference From Average -0.8C |
| High Max 22.7C on the 7th | Low Max 14.5C on the 14th | Highest Daily Range 13.3C on the 9th |
| High Min 14.4C on the 20th | Low Min 3.6C on the 23rd | Lowest Daily Range 1.9C on the 20th |
| Number of Air Frosts 0 | Days of Thunder 0 | Days of Snow 0 |
| Days of Measurable Rain 16 Days | Days of Rain with trace 4 Days | Days with Gusts ≥ 50 mph 0 days |
| Average Rainfall 65.8mm | This Months Average 125.2mm | Percentage of Average Rainfall 190.3% |