Climate averages 1991–2020
Luomen weather
in September.
A mild, wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Luomen: daytime highs average 21.2°C and nights cool to about 12.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 94 mm of rain on roughly 12 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Pan’an (8 km away). In September its highs average 21.3°C, about as warm as Luomen, with 94 mm of rain.
Among the 884 cities listed in China, Luomen ranks joint 782nd of 884 for the warmest September highs and joint 531st of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Luomen is 4.5°C cooler than that mean.
From September to October, average highs fall by 5.6°C to 15.6°C, and monthly rainfall falls from 94 mm to 66 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
Luomen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.3°C-6.5°C | -6.5°C | 12 | 3.9 | 10.110 h |
| February | 5.2°C-4.6°C | -4.6°C | 15 | 4.5 | 10.911 h |
| March | 11.6°C0.4°C | 0.4°C | 28 | 6.8 | 11.912 h |
| April | 17.8°C5.5°C | 5.5°C | 41 | 8.0 | 13.013 h |
| May | 21.8°C10.3°C | 10.3°C | 67 | 9.4 | 14.014 h |
| June | 25.5°C14.6°C | 14.6°C | 76 | 9.5 | 14.414 h |
| July | 27.4°C17.4°C | 17.4°C | 103 | 11.2 | 14.214 h |
| August | 26.2°C16.8°C | 16.8°C | 115 | 11.1 | 13.513 h |
| September, selected | 21.2°C12.7°C | 12.7°C | 94 | 11.6 | 12.412 h |
| October | 15.6°C7.0°C | 7.0°C | 66 | 11.7 | 11.311 h |
| November | 9.8°C0.8°C | 0.8°C | 20 | 5.2 | 10.410 h |
| December | 4.0°C-4.7°C | -4.7°C | 7.2 | 2.1 | 9.910 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
- Pan’an in SeptemberChina · 8 kmHigh 21.3°C · Low 12.9°C · 94 mm rain
- Xinxing in SeptemberChina · 27 kmHigh 21.5°C · Low 13.2°C · 95 mm rain
- Gangu Chengguanzhen in SeptemberChina · 28 kmHigh 21.9°C · Low 13.5°C · 95 mm rain
- Xingguo in SeptemberChina · 60 kmHigh 21.8°C · Low 13.4°C · 108 mm rain
- Tianshui in SeptemberChina · 68 kmHigh 21.9°C · Low 13.9°C · 116 mm rain
- Beidao in SeptemberChina · 82 kmHigh 21.9°C · Low 14.0°C · 115 mm rain
- Dingxi in SeptemberChina · 98 kmHigh 18.9°C · Low 9.2°C · 84 mm rain
- Longnan (approximate) in SeptemberChina · 151 kmHigh 23.0°C · Low 17.0°C · 128 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 Luomen) is explained once on the Luomen year overview and on the Sources, method and limits page.
Pan’an lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.