Haeju weather by month
Warmest month
August
29°C average high
Coolest month
January
-4°C average low
Wettest month
July
134 mm of rain
Driest month
January
7 mm of rain
Average temperature and rainfall in Haeju 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 | 2°C | -4°C | -16°C / 13°C | 7 mm | 74% | 14 km/h |
| February | 3°C | -3°C | -13°C / 11°C | 13 mm | 70% | 16 km/h |
| March | 9°C | 3°C | -2°C / 21°C | 37 mm | 66% | 14 km/h |
| April | 15°C | 8°C | 3°C / 24°C | 36 mm | 66% | 14 km/h |
| May | 20°C | 12°C | 3°C / 28°C | 45 mm | 70% | 13 km/h |
| June | 24°C | 18°C | 13°C / 28°C | 58 mm | 76% | 11 km/h |
| July | 27°C | 22°C | 17°C / 34°C | 134 mm | 84% | 12 km/h |
| August | 29°C | 23°C | 15°C / 33°C | 97 mm | 84% | 11 km/h |
| September | 24°C | 19°C | 11°C / 30°C | 50 mm | 80% | 12 km/h |
| October | 19°C | 12°C | 3°C / 26°C | 30 mm | 73% | 13 km/h |
| November | 12°C | 6°C | -3°C / 26°C | 29 mm | 70% | 13 km/h |
| December | 4°C | -1°C | -14°C / 15°C | 15 mm | 74% | 15 km/h |
Frost and snow-likely months in Haeju
Nights in Haeju average 2°C or below in 3 months (January, February and December). February and 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 -4°C and a record low of -16°C.
- January: average low -4°C, record low -16°C, 7 mm of precipitation
- February: average low -3°C, record low -13°C, 13 mm of precipitation — snow-likely
- December: average low -1°C, record low -14°C, 15 mm of precipitation — snow-likely
These records carry temperature and precipitation, not snowfall totals.
Best time to visit Haeju
The most comfortable time to visit Haeju is generally June and September to October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 551 mm a year.
Travellers who prefer heat should aim for August, when highs average 29°C. July is the month to avoid if rain would spoil your plans — it averages 134 mm, roughly 18× the rainfall of the driest month (January).
Haeju climate: your questions
Does Haeju get snow?
Yes, in winter: February and 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 -4°C, record low -16°C). Our records carry temperature and precipitation, not snowfall totals. What is falling now: Haeju weather today.
Will Haeju see snow this winter?
Haeju's winter months average lows of -1°C in December, -4°C in January and -3°C in February, with about 36 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: Haeju 10-day forecast.
When is the best time to visit Haeju?
June and September to October are the most comfortable months in Haeju, with highs near 23°C. August is the warmest month, averaging 29°C by day; July is the wettest, with 134 mm; and January is the coolest, with lows near -4°C. What it is doing today: Haeju weather today.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Haeju forecast for what is happening now.
