Climate averages 1991–2020
Jiamusi weather
in September.
A mild, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Jiamusi: daytime highs average 20.1°C and nights cool to about 10.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 58 mm of rain on roughly 9 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average September day.
The nearest other city in this atlas is Hegang (61 km away). In September its highs average 18.9°C, 1.1°C cooler than Jiamusi, with 70 mm of rain.
Among the 884 cities listed in China, Jiamusi ranks joint 826th of 884 for the warmest September highs and joint 148th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Jiamusi is 5.6°C cooler than that mean.
From September to October, average highs fall by 9.0°C to 11.0°C, and monthly rainfall falls from 58 mm to 40 mm.
The annual picture
September in context
Monthly precipitation
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
Jiamusi climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -13.1°C-24.6°C | -24.6°C | 5.4 | 1.4 | 9.09 h |
| February | -7.1°C-20.7°C | -20.7°C | 5.7 | 1.8 | 10.310 h |
| March | 2.0°C-10.2°C | -10.2°C | 18 | 3.8 | 11.912 h |
| April | 12.6°C-0.3°C | -0.3°C | 34 | 6.7 | 13.614 h |
| May | 19.8°C7.5°C | 7.5°C | 64 | 10.7 | 15.015 h |
| June | 24.7°C14.4°C | 14.4°C | 85 | 11.8 | 15.816 h |
| July | 26.9°C18.2°C | 18.2°C | 121 | 13.6 | 15.515 h |
| August | 25.1°C16.7°C | 16.7°C | 116 | 12.4 | 14.214 h |
| September, selected | 20.1°C10.2°C | 10.2°C | 58 | 8.5 | 12.613 h |
| October | 11.0°C1.3°C | 1.3°C | 40 | 6.5 | 10.911 h |
| November | -1.0°C-9.6°C | -9.6°C | 17 | 3.6 | 9.49 h |
| December | -11.6°C-21.2°C | -21.2°C | 10 | 2.7 | 8.69 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
- Hegang in SeptemberChina · 61 kmHigh 18.9°C · Low 8.2°C · 70 mm rain
- Shuangyashan in SeptemberChina · 64 kmHigh 19.5°C · Low 10.1°C · 65 mm rain
- Lingdong in SeptemberChina · 69 kmHigh 19.4°C · Low 10.6°C · 73 mm rain
- Yilan, China in SeptemberChina · 78 kmHigh 20.1°C · Low 10.1°C · 56 mm rain
- Baoshan (Heilongjiang), China in SeptemberChina · 86 kmHigh 19.1°C · Low 10.1°C · 70 mm rain
- Lianhe in SeptemberChina · 87 kmHigh 19.2°C · Low 8.6°C · 63 mm rain
- Boli in SeptemberChina · 118 kmHigh 19.7°C · Low 9.5°C · 76 mm rain
- Qitaihe in SeptemberChina · 126 kmHigh 19.6°C · Low 9.6°C · 71 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 Jiamusi) is explained once on the Jiamusi year overview and on the Sources, method and limits page.