Climate averages 1991–2020
Birmingham weather
in September.
A mild, moderately wet month: the 4th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Birmingham: daytime highs average 17.1°C and nights cool to about 10.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 57 mm of rain on roughly 10 days, which makes September a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 44 min on an average September day.
The nearest other city in this atlas is West Bromwich (8 km away). In September its highs average 17.0°C, about as warm as Birmingham, with 57 mm of rain.
Among the 143 cities listed in the United Kingdom, Birmingham ranks joint 86th of 143 for the warmest September highs and joint 69th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 17.3°C; Birmingham is 0.2°C cooler than that mean.
From September to October, average highs fall by 3.9°C to 13.2°C, and monthly rainfall rises from 57 mm to 67 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Birmingham climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.5°C1.7°C | 1.7°C | 55 | 12.3 | 8.38 h |
| February | 7.1°C1.4°C | 1.4°C | 47 | 10.3 | 9.910 h |
| March | 9.4°C2.5°C | 2.5°C | 50 | 10.8 | 11.812 h |
| April | 12.1°C4.1°C | 4.1°C | 56 | 11.9 | 13.914 h |
| May | 15.2°C7.1°C | 7.1°C | 61 | 11.5 | 15.716 h |
| June | 18.0°C10.1°C | 10.1°C | 68 | 11.5 | 16.717 h |
| July | 20.1°C12.2°C | 12.2°C | 65 | 11.8 | 16.316 h |
| August | 19.7°C12.1°C | 12.1°C | 62 | 11.1 | 14.715 h |
| September, selected | 17.1°C10.0°C | 10.0°C | 57 | 9.8 | 12.713 h |
| October | 13.2°C7.4°C | 7.4°C | 67 | 11.2 | 10.711 h |
| November | 9.2°C4.2°C | 4.2°C | 65 | 11.9 | 8.89 h |
| December | 6.7°C2.1°C | 2.1°C | 62 | 11.8 | 7.88 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- West Bromwich in SeptemberUnited Kingdom · 8 kmHigh 17.0°C · Low 9.9°C · 57 mm rain
- Solihull in SeptemberUnited Kingdom · 11 kmHigh 17.3°C · Low 10.2°C · 57 mm rain
- Sutton Coldfield in SeptemberUnited Kingdom · 11 kmHigh 17.2°C · Low 10.1°C · 57 mm rain
- Dudley in SeptemberUnited Kingdom · 13 kmHigh 17.0°C · Low 9.9°C · 57 mm rain
- Walsall in SeptemberUnited Kingdom · 13 kmHigh 17.1°C · Low 10.2°C · 57 mm rain
- Wolverhampton in SeptemberUnited Kingdom · 19 kmHigh 16.9°C · Low 9.9°C · 57 mm rain
- Redditch in SeptemberUnited Kingdom · 20 kmHigh 17.4°C · Low 10.1°C · 54 mm rain
- Tamworth in SeptemberUnited Kingdom · 22 kmHigh 17.5°C · Low 10.3°C · 59 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Birmingham) is explained once on the Birmingham year overview and on the Sources, method and limits page.
Wolverhampton, Dudley and Walsall lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.