Climate averages 1991–2020
Ratingen 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 Ratingen: daytime highs average 18.9°C and nights cool to about 11.7°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 70 mm of rain on roughly 11 days, which makes September a moderately wet month (the 5th 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 Düsseldorf (10 km away). In September its highs average 19.2°C, about as warm as Ratingen, with 70 mm of rain.
Among the 120 cities listed in Germany, Ratingen ranks joint 52nd of 120 for the warmest September highs and joint 91st of 120 for the driest September (rainfall, lowest first). The mean September high of those 120 cities is 18.8°C; Ratingen is 0.1°C warmer than that mean.
From September to October, average highs fall by 4.7°C to 14.2°C, and monthly rainfall rises from 70 mm to 77 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
Ratingen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.1°C0.7°C | 0.7°C | 79 | 14.0 | 8.48 h |
| February | 6.3°C0.7°C | 0.7°C | 67 | 12.3 | 9.910 h |
| March | 9.9°C2.7°C | 2.7°C | 67 | 13.0 | 11.812 h |
| April | 14.2°C5.5°C | 5.5°C | 52 | 10.9 | 13.814 h |
| May | 17.9°C9.5°C | 9.5°C | 64 | 11.6 | 15.616 h |
| June | 20.7°C12.5°C | 12.5°C | 76 | 12.5 | 16.517 h |
| July | 22.8°C14.8°C | 14.8°C | 85 | 13.7 | 16.116 h |
| August | 22.5°C14.7°C | 14.7°C | 83 | 12.6 | 14.615 h |
| September, selected | 18.9°C11.7°C | 11.7°C | 70 | 11.3 | 12.713 h |
| October | 14.2°C8.4°C | 8.4°C | 77 | 12.2 | 10.711 h |
| November | 9.1°C4.5°C | 4.5°C | 76 | 13.3 | 9.09 h |
| December | 5.7°C1.6°C | 1.6°C | 89 | 15.0 | 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
- Düsseldorf in SeptemberGermany · 10 kmHigh 19.2°C · Low 11.6°C · 70 mm rain
- Velbert in SeptemberGermany · 14 kmHigh 17.7°C · Low 10.7°C · 80 mm rain
- Mülheim in SeptemberGermany · 15 kmHigh 19.0°C · Low 11.9°C · 69 mm rain
- Neuss in SeptemberGermany · 16 kmHigh 19.3°C · Low 11.7°C · 70 mm rain
- Duisburg in SeptemberGermany · 16 kmHigh 19.0°C · Low 11.9°C · 66 mm rain
- Oberhausen in SeptemberGermany · 20 kmHigh 19.0°C · Low 11.6°C · 66 mm rain
- Krefeld in SeptemberGermany · 21 kmHigh 19.1°C · Low 11.8°C · 66 mm rain
- Essen in SeptemberGermany · 21 kmHigh 18.8°C · Low 11.4°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 Ratingen) is explained once on the Ratingen year overview and on the Sources, method and limits page.
Düsseldorf and Neuss lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.