Climate averages 1991–2020
Sinp’o weather
in September.
A mild, wet month: the 3rd warmest and the 10th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Sinp’o: daytime highs average 21.2°C and nights cool to about 16.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 101 mm of rain on roughly 8 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average September day.
The nearest other city in this atlas is Hongwŏn (20 km away). In September its highs average 21.7°C, 0.6°C warmer than Sinp’o, with 102 mm of rain.
Among the 38 cities listed in North Korea, Sinp’o ranks joint 34th of 38 for the warmest September highs and 21st of 38 for the driest September (rainfall, lowest first). The mean September high of those 38 cities is 23.2°C; Sinp’o is 2.1°C cooler than that mean.
From September to October, average highs fall by 5.3°C to 15.9°C, and monthly rainfall falls from 101 mm to 54 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
Sinp’o climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.4°C-7.1°C | -7.1°C | 33 | 6.4 | 9.710 h |
| February | 1.3°C-5.8°C | -5.8°C | 26 | 5.3 | 10.711 h |
| March | 5.7°C-0.9°C | -0.9°C | 30 | 5.2 | 11.912 h |
| April | 11.8°C4.9°C | 4.9°C | 45 | 6.0 | 13.213 h |
| May | 16.7°C10.6°C | 10.6°C | 76 | 7.1 | 14.414 h |
| June | 20.5°C15.5°C | 15.5°C | 74 | 7.0 | 15.015 h |
| July | 23.9°C19.9°C | 19.9°C | 169 | 11.5 | 14.715 h |
| August | 24.7°C20.9°C | 20.9°C | 175 | 12.0 | 13.814 h |
| September, selected | 21.2°C16.4°C | 16.4°C | 101 | 7.8 | 12.512 h |
| October | 15.9°C10.2°C | 10.2°C | 54 | 6.4 | 11.211 h |
| November | 8.5°C3.0°C | 3.0°C | 58 | 8.1 | 10.010 h |
| December | 2.1°C-4.1°C | -4.1°C | 39 | 7.1 | 9.49 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
- Hongwŏn in SeptemberNorth Korea · 20 kmHigh 21.7°C · Low 15.4°C · 102 mm rain
- Hŭngnam in SeptemberNorth Korea · 53 kmHigh 21.9°C · Low 16.1°C · 115 mm rain
- Hamhŭng in SeptemberNorth Korea · 58 kmHigh 21.9°C · Low 14.5°C · 131 mm rain
- Changam-ch’on in SeptemberNorth Korea · 80 kmHigh 22.5°C · Low 13.9°C · 103 mm rain
- Wŏnsan in SeptemberNorth Korea · 118 kmHigh 22.7°C · Low 16.3°C · 151 mm rain
- Hyesan in SeptemberNorth Korea · 151 kmHigh 19.7°C · Low 8.8°C · 70 mm rain
- Myŏnggan-dong in SeptemberNorth Korea · 164 kmHigh 21.2°C · Low 13.4°C · 109 mm rain
- Tŏkch’ŏn in SeptemberNorth Korea · 168 kmHigh 23.5°C · Low 14.2°C · 124 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 Sinp’o) is explained once on the Sinp’o year overview and on the Sources, method and limits page.