Climate averages 1991–2020
Hongch’ŏn weather
in May.
A mild, wet month: the 5th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Hongch’ŏn: daytime highs average 21.7°C and nights cool to about 10.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 97 mm of rain on roughly 8 days, which makes May a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 11 min on an average May day.
The nearest other city in this atlas is Chuncheon (24 km away). In May its highs average 22.0°C, about as warm as Hongch’ŏn, with 100 mm of rain.
Among the 79 cities listed in South Korea, Hongch’ŏn ranks 53rd of 79 for the warmest May highs and joint 40th of 79 for the driest May (rainfall, lowest first). The mean May high of those 79 cities is 21.9°C; Hongch’ŏn is 0.3°C cooler than that mean.
From May to June, average highs rise by 4.1°C to 25.8°C, and monthly rainfall rises from 97 mm to 113 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
Hongch’ŏn climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.0°C-7.6°C | -7.6°C | 22 | 4.3 | 9.910 h |
| February | 4.3°C-5.1°C | -5.1°C | 30 | 4.8 | 10.811 h |
| March | 9.8°C-0.6°C | -0.6°C | 47 | 7.5 | 11.912 h |
| April | 16.4°C4.6°C | 4.6°C | 81 | 8.3 | 13.113 h |
| May, selected | 21.7°C10.6°C | 10.6°C | 97 | 8.3 | 14.214 h |
| June | 25.8°C16.1°C | 16.1°C | 113 | 9.7 | 14.715 h |
| July | 27.5°C20.4°C | 20.4°C | 303 | 17.3 | 14.514 h |
| August | 28.0°C20.8°C | 20.8°C | 230 | 15.6 | 13.614 h |
| September | 23.8°C15.2°C | 15.2°C | 123 | 8.3 | 12.512 h |
| October | 17.9°C8.1°C | 8.1°C | 53 | 5.6 | 11.311 h |
| November | 10.0°C1.5°C | 1.5°C | 47 | 7.6 | 10.210 h |
| December | 3.1°C-4.8°C | -4.8°C | 28 | 5.6 | 9.610 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
- Chuncheon in MaySouth Korea · 24 kmHigh 22.0°C · Low 11.2°C · 100 mm rain
- Wŏnju in MaySouth Korea · 38 kmHigh 22.2°C · Low 10.8°C · 102 mm rain
- Yangp'yŏng in MaySouth Korea · 41 kmHigh 22.7°C · Low 11.8°C · 103 mm rain
- Yeoju in MaySouth Korea · 49 kmHigh 22.7°C · Low 11.3°C · 98 mm rain
- Hwado in MaySouth Korea · 51 kmHigh 22.1°C · Low 11.4°C · 109 mm rain
- Wabu in MaySouth Korea · 60 kmHigh 22.2°C · Low 11.4°C · 104 mm rain
- Icheon-si in MaySouth Korea · 60 kmHigh 22.6°C · Low 11.4°C · 98 mm rain
- Hanam in MaySouth Korea · 62 kmHigh 22.3°C · Low 11.5°C · 104 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 Hongch’ŏn) is explained once on the Hongch’ŏn year overview and on the Sources, method and limits page.