Climate averages 1991–2020
Cambridge, United Kingdom weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Cambridge, United Kingdom: daytime highs average 18.6°C and nights cool to about 11.1°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 50 mm of rain on roughly 9 days, which makes September a moderately wet month (the joint 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 43 min on an average September day.
The nearest other city in this atlas is Stevenage (40 km away). In September its highs average 18.1°C, about as warm as Cambridge, United Kingdom, with 51 mm of rain.
Among the 143 cities listed in the United Kingdom, Cambridge, United Kingdom ranks joint 1st of 143 for the warmest September highs and joint 26th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 17.3°C; Cambridge, United Kingdom is 1.3°C warmer than that mean.
From September to October, average highs fall by 4.0°C to 14.5°C, and monthly rainfall rises from 50 mm to 57 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
Cambridge, United Kingdom climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C2.2°C | 2.2°C | 50 | 10.8 | 8.38 h |
| February | 7.9°C2.0°C | 2.0°C | 40 | 9.8 | 9.910 h |
| March | 10.3°C3.3°C | 3.3°C | 43 | 10.1 | 11.812 h |
| April | 13.1°C5.0°C | 5.0°C | 48 | 10.7 | 13.914 h |
| May | 16.2°C8.0°C | 8.0°C | 54 | 10.5 | 15.716 h |
| June | 19.0°C11.1°C | 11.1°C | 59 | 10.3 | 16.717 h |
| July | 21.5°C13.4°C | 13.4°C | 60 | 11.4 | 16.216 h |
| August | 21.4°C13.4°C | 13.4°C | 61 | 10.5 | 14.715 h |
| September, selected | 18.6°C11.1°C | 11.1°C | 50 | 9.0 | 12.713 h |
| October | 14.5°C8.4°C | 8.4°C | 57 | 10.3 | 10.711 h |
| November | 10.2°C4.9°C | 4.9°C | 55 | 10.8 | 8.89 h |
| December | 7.4°C2.8°C | 2.8°C | 52 | 11.2 | 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
- Stevenage in SeptemberUnited Kingdom · 40 kmHigh 18.1°C · Low 10.8°C · 51 mm rain
- Bedford in SeptemberUnited Kingdom · 40 kmHigh 18.5°C · Low 11.0°C · 50 mm rain
- Harlow in SeptemberUnited Kingdom · 47 kmHigh 18.3°C · Low 11.0°C · 48 mm rain
- Peterborough, United Kingdom in SeptemberUnited Kingdom · 48 kmHigh 18.4°C · Low 10.9°C · 50 mm rain
- Luton in SeptemberUnited Kingdom · 51 kmHigh 17.9°C · Low 10.6°C · 51 mm rain
- Chelmsford in SeptemberUnited Kingdom · 57 kmHigh 18.3°C · Low 11.8°C · 46 mm rain
- St Albans in SeptemberUnited Kingdom · 59 kmHigh 18.0°C · Low 10.9°C · 49 mm rain
- Milton Keynes in SeptemberUnited Kingdom · 62 kmHigh 17.7°C · Low 10.5°C · 54 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 Cambridge) is explained once on the Cambridge, United Kingdom year overview and on the Sources, method and limits page.