The first three weeks of September were dominated by high pressure bringing stable conditions with sunny periods, occasionally beginning overcast but soon clearing. Apart from brief showers on 2nd & 5th (1.2mm & 1.7mm respectively) there was no rain. Winds were light, W-NW until 9th, then swinging round to E-NE.

The daytime temperature was mainly around 20°C but climbed to 23.7°C on 8th. A hotter spell occurred from 13th-16th reaching 24.1°C, 28.6°C, 25.7°C & 25.3°C respectively. The 14th registered the warmest day of the month. Night time temperatures only fell below 10°C on 1st & 2nd and ranged up to 16.5°C on 8th.

The barometer then began to fall sharply and the wind went round to SW on 22nd and increased. Heavy rain fell overnight of 22nd/23rd bringing 8.0mm and continued into 23rd with another 4.8mm. Maximum temperatures fell to between 13.7°C and 18.4°C and nights into single figures.

There was more rain on the nights of 28th & 30th (8.4mm & 12.0mm). This brought the total for September to 36.1mm, 70% of my 25-year average. The total for the year so far is 519.8mm, just 10% above average.

As a whole, September was a very pleasant, warm (1.2°C above average), dry month with plenty of sunshine and light winds.

Mike Wilkins

25 year Rainfall averages are from 1992-2016
30 year Temperature averages are from 1981-2010