Climate averages 1991–2020
Chongjin weather
in September.
A mild, wet month: the 3rd 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 Chongjin: daytime highs average 20.4°C and nights cool to about 14.6°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 121 mm of rain on roughly 11 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 31 min on an average September day.
The nearest other city in this atlas is Ŏrang (40 km away). In September its highs average 21.1°C, 0.6°C warmer than Chongjin, with 106 mm of rain.
Among the 38 cities listed in North Korea, Chongjin ranks 37th of 38 for the warmest September highs and 35th of 38 for the driest September (rainfall, lowest first). The mean September high of those 38 cities is 23.2°C; Chongjin is 2.8°C cooler than that mean.
From September to October, average highs fall by 5.8°C to 14.6°C, and monthly rainfall falls from 121 mm to 59 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
Chongjin climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.9°C-11.9°C | -11.9°C | 40 | 9.2 | 9.510 h |
| February | -1.7°C-10.1°C | -10.1°C | 27 | 5.9 | 10.611 h |
| March | 3.5°C-4.5°C | -4.5°C | 35 | 7.4 | 11.912 h |
| April | 10.4°C1.9°C | 1.9°C | 52 | 9.0 | 13.313 h |
| May | 15.1°C7.9°C | 7.9°C | 96 | 12.9 | 14.515 h |
| June | 18.8°C13.3°C | 13.3°C | 106 | 13.3 | 15.215 h |
| July | 22.4°C18.0°C | 18.0°C | 190 | 17.2 | 14.915 h |
| August | 23.8°C19.3°C | 19.3°C | 215 | 18.7 | 13.914 h |
| September, selected | 20.4°C14.6°C | 14.6°C | 121 | 11.2 | 12.513 h |
| October | 14.6°C7.6°C | 7.6°C | 59 | 8.5 | 11.111 h |
| November | 6.4°C-0.1°C | -0.1°C | 60 | 9.1 | 9.910 h |
| December | -1.1°C-8.2°C | -8.2°C | 58 | 11.2 | 9.29 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
- Ŏrang in SeptemberNorth Korea · 40 kmHigh 21.1°C · Low 14.8°C · 106 mm rain
- Hwasŏng in SeptemberNorth Korea · 65 kmHigh 21.6°C · Low 13.5°C · 109 mm rain
- Myŏnggan-dong in SeptemberNorth Korea · 77 kmHigh 21.2°C · Low 13.4°C · 109 mm rain
- Ŭndŏk in SeptemberNorth Korea · 93 kmHigh 22.2°C · Low 12.9°C · 89 mm rain
- Helong in SeptemberChina · 105 kmHigh 20.9°C · Low 10.2°C · 75 mm rain
- Longjing in SeptemberChina · 112 kmHigh 21.3°C · Low 9.9°C · 67 mm rain
- Yanji in SeptemberChina · 124 kmHigh 21.6°C · Low 10.4°C · 66 mm rain
- Hunchun in SeptemberChina · 128 kmHigh 21.5°C · Low 10.8°C · 76 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 Chongjin) is explained once on the Chongjin year overview and on the Sources, method and limits page.