Climate averages 1991–2020
Hongwŏn weather
in May.
A mild, moderately wet month: the 5th warmest and the joint 8th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Hongwŏn: daytime highs average 18.4°C and nights cool to about 10.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 74 mm of rain on roughly 7 days, which makes May a moderately wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 22 min on an average May day.
The nearest other city in this atlas is Sinp’o (20 km away). In May its highs average 16.7°C, 1.7°C cooler than Hongwŏn, with 76 mm of rain.
Among the 38 cities listed in North Korea, Hongwŏn ranks joint 30th of 38 for the warmest May highs and 4th of 38 for the driest May (rainfall, lowest first). The mean May high of those 38 cities is 20.2°C; Hongwŏn is 1.9°C cooler than that mean.
From May to June, average highs rise by 3.7°C to 22.0°C, and monthly rainfall stays at 74 mm.
The annual picture
May 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
Hongwŏn climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.2°C-9.2°C | -9.2°C | 30 | 5.8 | 9.710 h |
| February | 1.8°C-7.4°C | -7.4°C | 25 | 5.2 | 10.711 h |
| March | 6.8°C-1.8°C | -1.8°C | 30 | 5.3 | 11.912 h |
| April | 13.3°C3.9°C | 3.9°C | 46 | 6.2 | 13.213 h |
| May, selected | 18.4°C10.1°C | 10.1°C | 74 | 7.4 | 14.414 h |
| June | 22.0°C15.3°C | 15.3°C | 74 | 7.0 | 15.015 h |
| July | 25.0°C19.7°C | 19.7°C | 172 | 12.2 | 14.715 h |
| August | 25.5°C20.4°C | 20.4°C | 182 | 12.3 | 13.814 h |
| September | 21.7°C15.4°C | 15.4°C | 102 | 8.3 | 12.512 h |
| October | 16.3°C8.7°C | 8.7°C | 51 | 6.8 | 11.211 h |
| November | 8.7°C1.6°C | 1.6°C | 56 | 8.0 | 10.010 h |
| December | 2.1°C-5.6°C | -5.6°C | 35 | 6.5 | 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
May in nearby cities
- Sinp’o in MayNorth Korea · 20 kmHigh 16.7°C · Low 10.6°C · 76 mm rain
- Hŭngnam in MayNorth Korea · 34 kmHigh 18.1°C · Low 10.6°C · 83 mm rain
- Hamhŭng in MayNorth Korea · 38 kmHigh 19.2°C · Low 9.8°C · 88 mm rain
- Changam-ch’on in MayNorth Korea · 95 kmHigh 20.0°C · Low 9.3°C · 69 mm rain
- Wŏnsan in MayNorth Korea · 106 kmHigh 20.3°C · Low 11.2°C · 104 mm rain
- Tŏkch’ŏn in MayNorth Korea · 148 kmHigh 21.1°C · Low 10.6°C · 122 mm rain
- Hyesan in MayNorth Korea · 154 kmHigh 18.0°C · Low 5.5°C · 95 mm rain
- Kanggye in MayNorth Korea · 156 kmHigh 20.0°C · Low 8.0°C · 109 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 Hongwŏn) is explained once on the Hongwŏn year overview and on the Sources, method and limits page.