Climate averages 1991–2020
Saint Peters weather
in September.
A mild, moderately wet month: the 3rd warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Saint Peters: daytime highs average 17.7°C and nights cool to about 13.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 60 mm of rain on roughly 11 days, which makes September a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 42 min on an average September day.
The nearest other city in this atlas is Southend-on-Sea (52 km away). In September its highs average 18.1°C, about as warm as Saint Peters, with 56 mm of rain.
Among the 143 cities listed in the United Kingdom, Saint Peters ranks joint 61st of 143 for the warmest September highs and joint 93rd of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 17.3°C; Saint Peters is 0.5°C warmer than that mean.
From September to October, average highs fall by 3.5°C to 14.3°C, and monthly rainfall rises from 60 mm to 86 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
Saint Peters climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C3.8°C | 3.8°C | 73 | 13.7 | 8.48 h |
| February | 7.2°C3.6°C | 3.6°C | 58 | 11.3 | 9.910 h |
| March | 9.2°C4.9°C | 4.9°C | 47 | 10.3 | 11.812 h |
| April | 11.7°C6.8°C | 6.8°C | 42 | 9.3 | 13.814 h |
| May | 14.7°C9.8°C | 9.8°C | 49 | 9.2 | 15.616 h |
| June | 17.6°C12.6°C | 12.6°C | 51 | 9.4 | 16.517 h |
| July | 20.0°C14.8°C | 14.8°C | 54 | 9.8 | 16.116 h |
| August | 20.2°C15.2°C | 15.2°C | 62 | 9.6 | 14.615 h |
| September, selected | 17.7°C13.3°C | 13.3°C | 60 | 10.7 | 12.713 h |
| October | 14.3°C10.5°C | 10.5°C | 86 | 13.4 | 10.711 h |
| November | 10.4°C7.1°C | 7.1°C | 89 | 15.0 | 8.99 h |
| December | 7.8°C4.6°C | 4.6°C | 84 | 14.2 | 8.08 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
- Southend-on-Sea in SeptemberUnited Kingdom · 52 kmHigh 18.1°C · Low 12.5°C · 56 mm rain
- Calais in SeptemberFrance · 55 kmHigh 18.4°C · Low 13.2°C · 68 mm rain
- Gillingham in SeptemberUnited Kingdom · 60 kmHigh 18.3°C · Low 11.9°C · 45 mm rain
- Maidstone in SeptemberUnited Kingdom · 64 kmHigh 18.6°C · Low 11.9°C · 50 mm rain
- Colchester in SeptemberUnited Kingdom · 68 kmHigh 18.1°C · Low 12.3°C · 52 mm rain
- Basildon in SeptemberUnited Kingdom · 70 kmHigh 18.2°C · Low 12.1°C · 45 mm rain
- Dunkirk in SeptemberFrance · 76 kmHigh 18.8°C · Low 12.6°C · 57 mm rain
- Grays in SeptemberUnited Kingdom · 77 kmHigh 18.5°C · Low 11.8°C · 45 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 Saint Peters) is explained once on the Saint Peters year overview and on the Sources, method and limits page.