Sunch’ŏn weather by month
Warmest month
July
29°C average high
Coolest month
January
-10°C average low
Wettest month
July
141 mm of rain
Driest month
February
7 mm of rain
Average temperature and rainfall in Sunch’ŏn by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 0°C | -10°C | -23°C / 13°C | 7 mm | 74% | 10 km/h |
| February | 3°C | -6°C | -20°C / 12°C | 7 mm | 65% | 13 km/h |
| March | 11°C | 0°C | -11°C / 21°C | 37 mm | 62% | 11 km/h |
| April | 17°C | 7°C | -2°C / 26°C | 50 mm | 60% | 13 km/h |
| May | 22°C | 12°C | 5°C / 30°C | 52 mm | 66% | 13 km/h |
| June | 26°C | 17°C | 12°C / 33°C | 65 mm | 71% | 11 km/h |
| July | 29°C | 22°C | 18°C / 35°C | 141 mm | 80% | 11 km/h |
| August | 29°C | 21°C | 12°C / 36°C | 119 mm | 84% | 8 km/h |
| September | 24°C | 16°C | 5°C / 30°C | 50 mm | 79% | 9 km/h |
| October | 18°C | 10°C | 4°C / 26°C | 30 mm | 71% | 10 km/h |
| November | 11°C | 3°C | -10°C / 21°C | 29 mm | 68% | 10 km/h |
| December | 1°C | -6°C | -19°C / 15°C | 15 mm | 73% | 12 km/h |
Frost and snow-likely months in Sunch’ŏn
Nights in Sunch’ŏn average 2°C or below in 4 months (January, February, March and December). December combine average lows at or below 0°C with 10 mm or more of monthly precipitation, so precipitation then is likely to fall as snow. The coldest month is January with an average low of -10°C and a record low of -23°C.
- January: average low -10°C, record low -23°C, 7 mm of precipitation
- February: average low -6°C, record low -20°C, 7 mm of precipitation
- March: average low 0°C, record low -11°C, 37 mm of precipitation
- December: average low -6°C, record low -19°C, 15 mm of precipitation — snow-likely
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Sunch’ŏn
The most comfortable time to visit Sunch’ŏn is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 603 mm a year.
Travellers who prefer heat should aim for July, when highs average 29°C. July is the month to avoid if rain would spoil your plans — it averages 141 mm, roughly 21× the rainfall of the driest month (February).
Sunch’ŏn climate: your questions
Does it snow in Sunch’ŏn?
Yes, in winter: December average lows at or below 0°C with 10 mm or more of monthly precipitation, so some of it falls as snow. The coldest month is January (average low -10°C, record low -23°C). Our records carry temperature and precipitation, not snowfall totals. What is falling now: Sunch’ŏn weather today.
Will it snow in Sunch’ŏn this winter?
Sunch’ŏn's winter months average lows of -6°C in December, -10°C in January and -6°C in February, with about 29 mm of precipitation across the three; 3 of them sit at or below 0°C, so snow is likely on the colder days. The records hold no snowfall totals. The next 15 days: Sunch’ŏn 10-day forecast.
Which months are best for visiting Sunch’ŏn?
May to June and September are the most comfortable months in Sunch’ŏn, with highs near 24°C. July is the warmest month, averaging 29°C by day; July is the wettest, with 141 mm; and January is the coolest, with lows near -10°C. What it is doing today: Sunch’ŏn weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Sunch’ŏn forecast for what is happening now.
