Climate averages 1991–2020
Rochdale weather
in September.
A mild, moderately wet month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Rochdale: daytime highs average 16.0°C and nights cool to about 9.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 76 mm of rain on roughly 12 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average September day.
The nearest other city in this atlas is Oldham (9 km away). In September its highs average 15.6°C, about as warm as Rochdale, with 73 mm of rain.
Among the 143 cities listed in the United Kingdom, Rochdale ranks joint 124th of 143 for the warmest September highs and joint 125th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 17.3°C; Rochdale is 1.3°C cooler than that mean.
From September to October, average highs fall by 3.5°C to 12.5°C, and monthly rainfall rises from 76 mm to 89 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
Rochdale climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.1°C1.4°C | 1.4°C | 88 | 15.0 | 8.18 h |
| February | 6.7°C1.2°C | 1.2°C | 78 | 13.5 | 9.810 h |
| March | 8.8°C2.1°C | 2.1°C | 74 | 13.1 | 11.812 h |
| April | 11.5°C3.8°C | 3.8°C | 66 | 12.8 | 14.014 h |
| May | 14.5°C6.8°C | 6.8°C | 69 | 12.8 | 15.916 h |
| June | 16.9°C9.7°C | 9.7°C | 84 | 13.9 | 17.017 h |
| July | 18.7°C11.7°C | 11.7°C | 84 | 15.1 | 16.516 h |
| August | 18.3°C11.6°C | 11.6°C | 89 | 15.2 | 14.815 h |
| September, selected | 16.0°C9.6°C | 9.6°C | 76 | 12.4 | 12.813 h |
| October | 12.5°C7.0°C | 7.0°C | 89 | 14.5 | 10.611 h |
| November | 8.7°C4.0°C | 4.0°C | 88 | 15.3 | 8.79 h |
| December | 6.3°C1.8°C | 1.8°C | 99 | 15.0 | 7.68 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
- Oldham in SeptemberUnited Kingdom · 9 kmHigh 15.6°C · Low 9.3°C · 73 mm rain
- Manchester in SeptemberUnited Kingdom · 16 kmHigh 16.5°C · Low 10.0°C · 76 mm rain
- Salford in SeptemberUnited Kingdom · 17 kmHigh 16.5°C · Low 9.9°C · 76 mm rain
- Bolton in SeptemberUnited Kingdom · 19 kmHigh 16.1°C · Low 9.8°C · 77 mm rain
- Burnley in SeptemberUnited Kingdom · 21 kmHigh 15.9°C · Low 9.4°C · 89 mm rain
- Halifax, United Kingdom in SeptemberUnited Kingdom · 23 kmHigh 16.0°C · Low 9.8°C · 69 mm rain
- Stockport in SeptemberUnited Kingdom · 23 kmHigh 16.5°C · Low 10.0°C · 76 mm rain
- Huddersfield in SeptemberUnited Kingdom · 25 kmHigh 16.4°C · Low 10.3°C · 69 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 Rochdale) is explained once on the Rochdale year overview and on the Sources, method and limits page.
Manchester, Stockport and Salford lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.