Climate averages 1991–2020
Lowestoft weather
in September.
A mild, moderately wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Lowestoft: daytime highs average 17.2°C and nights cool to about 13.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 66 mm of rain on roughly 11 days, which makes September a moderately wet month (the 9th 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 Norwich (35 km away). In September its highs average 18.0°C, 0.9°C warmer than Lowestoft, with 58 mm of rain.
Among the 143 cities listed in the United Kingdom, Lowestoft ranks joint 83rd of 143 for the warmest September highs and joint 107th of 143 for the driest September (rainfall, lowest first). The mean September high of those 143 cities is 17.3°C; Lowestoft is 0.1°C cooler than that mean.
From September to October, average highs fall by 3.2°C to 14.0°C, and monthly rainfall rises from 66 mm to 81 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
Lowestoft climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.0°C3.8°C | 3.8°C | 64 | 13.1 | 8.38 h |
| February | 6.8°C3.5°C | 3.5°C | 53 | 10.8 | 9.910 h |
| March | 8.2°C4.5°C | 4.5°C | 48 | 10.7 | 11.812 h |
| April | 10.3°C6.4°C | 6.4°C | 37 | 8.8 | 13.914 h |
| May | 13.2°C9.3°C | 9.3°C | 48 | 8.7 | 15.716 h |
| June | 16.2°C12.2°C | 12.2°C | 54 | 10.1 | 16.717 h |
| July | 18.7°C14.6°C | 14.6°C | 59 | 11.2 | 16.316 h |
| August | 19.2°C15.1°C | 15.1°C | 64 | 10.2 | 14.715 h |
| September, selected | 17.2°C13.4°C | 13.4°C | 66 | 11.0 | 12.713 h |
| October | 14.0°C10.7°C | 10.7°C | 81 | 12.9 | 10.711 h |
| November | 10.3°C7.2°C | 7.2°C | 79 | 14.5 | 8.89 h |
| December | 7.7°C4.7°C | 4.7°C | 72 | 13.6 | 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
- Norwich in SeptemberUnited Kingdom · 35 kmHigh 18.0°C · Low 11.6°C · 58 mm rain
- Ipswich in SeptemberUnited Kingdom · 62 kmHigh 18.1°C · Low 12.1°C · 54 mm rain
- Colchester in SeptemberUnited Kingdom · 87 kmHigh 18.1°C · Low 12.3°C · 52 mm rain
- Cambridge, United Kingdom in SeptemberUnited Kingdom · 115 kmHigh 18.6°C · Low 11.1°C · 50 mm rain
- Chelmsford in SeptemberUnited Kingdom · 120 kmHigh 18.3°C · Low 11.8°C · 46 mm rain
- Saint Peters in SeptemberUnited Kingdom · 125 kmHigh 17.7°C · Low 13.3°C · 60 mm rain
- Southend-on-Sea in SeptemberUnited Kingdom · 126 kmHigh 18.1°C · Low 12.5°C · 56 mm rain
- Basildon in SeptemberUnited Kingdom · 134 kmHigh 18.2°C · Low 12.1°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 Lowestoft) is explained once on the Lowestoft year overview and on the Sources, method and limits page.