Climate averages 1991–2020
Sunderland 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 Sunderland: daytime highs average 16.4°C and nights cool to about 10.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 52 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 47 min on an average September day.
The nearest other city in this atlas is South Shields (11 km away). In September its highs average 16.3°C, about as warm as Sunderland, with 52 mm of rain.
Among the 143 cities listed in the United Kingdom, Sunderland ranks joint 113th of 143 for the warmest September highs and joint 37th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 17.3°C; Sunderland is 0.9°C cooler than that mean.
From September to October, average highs fall by 3.5°C to 12.9°C, and monthly rainfall rises from 52 mm to 58 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
Sunderland climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.5°C2.2°C | 2.2°C | 53 | 12.2 | 7.98 h |
| February | 7.1°C2.2°C | 2.2°C | 46 | 11.0 | 9.610 h |
| March | 8.9°C2.9°C | 2.9°C | 43 | 10.6 | 11.812 h |
| April | 11.1°C4.5°C | 4.5°C | 51 | 11.0 | 14.114 h |
| May | 13.9°C7.2°C | 7.2°C | 48 | 11.3 | 16.116 h |
| June | 16.6°C10.1°C | 10.1°C | 60 | 11.5 | 17.217 h |
| July | 19.0°C12.3°C | 12.3°C | 61 | 12.0 | 16.717 h |
| August | 18.7°C12.2°C | 12.2°C | 68 | 12.3 | 15.015 h |
| September, selected | 16.4°C10.3°C | 10.3°C | 52 | 9.7 | 12.813 h |
| October | 12.9°C7.7°C | 7.7°C | 58 | 11.8 | 10.511 h |
| November | 9.2°C4.8°C | 4.8°C | 62 | 12.5 | 8.58 h |
| December | 6.7°C2.6°C | 2.6°C | 59 | 12.4 | 7.37 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
- South Shields in SeptemberUnited Kingdom · 11 kmHigh 16.3°C · Low 10.6°C · 52 mm rain
- Newcastle upon Tyne in SeptemberUnited Kingdom · 17 kmHigh 15.9°C · Low 10.0°C · 52 mm rain
- Hartlepool in SeptemberUnited Kingdom · 27 kmHigh 16.2°C · Low 10.8°C · 57 mm rain
- Stockton-on-Tees in SeptemberUnited Kingdom · 38 kmHigh 16.4°C · Low 10.6°C · 58 mm rain
- Middlesbrough in SeptemberUnited Kingdom · 38 kmHigh 16.3°C · Low 10.7°C · 58 mm rain
- Darlington in SeptemberUnited Kingdom · 44 kmHigh 16.2°C · Low 9.6°C · 56 mm rain
- Carlisle in SeptemberUnited Kingdom · 99 kmHigh 15.5°C · Low 9.3°C · 70 mm rain
- Harrogate in SeptemberUnited Kingdom · 102 kmHigh 16.0°C · Low 9.3°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 Sunderland) is explained once on the Sunderland year overview and on the Sources, method and limits page.
Newcastle upon Tyne and South Shields lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.