Iwŏn-ŭp, North Korea Climate
The warmest month is July, with an average high of 26°C; the coldest is January, with an average low of -11°C. A normal year brings 664 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 25
- Normal high
- 21°C
- Normal low
- 11°C
- Reanalysis high
- 28°Cin 2016
- Reanalysis low
- 8°Cin 2018
- Chance of a wet day
- 19%
- Daylight
- 12 h 03 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | -2°C | -11°C | 7°C (2009) | -25°C (2018) | 12 mm | 3.1 |
| February | 1°C | -9°C | 14°C (1992) | -21°C (1991) | 11 mm | 2.8 |
| March | 7°C | -4°C | 22°C (2018) | -15°C (2007) | 19 mm | 3.1 |
| April | 14°C | 2°C | 28°C (2015) | -6°C (1991) | 33 mm | 6.0 |
| May | 20°C | 9°C | 36°C (2017) | -1°C (2005) | 65 mm | 9.3 |
| June | 24°C | 14°C | 34°C (2001) | 7°C (1992) | 72 mm | 12.0 |
| July | 26°C | 18°C | 36°C (2018) | 12°C (1993) | 152 mm | 15.5 |
| August | 26°C | 18°C | 37°C (2018) | 10°C (2017) | 136 mm | 15.5 |
| September | 22°C | 13°C | 32°C (1999) | 3°C (1992) | 78 mm | 6.0 |
| October | 16°C | 6°C | 26°C (2019) | -4°C (1996) | 37 mm | 6.2 |
| November | 8°C | -1°C | 22°C (2003) | -14°C (1992) | 33 mm | 6.0 |
| December | 0°C | -8°C | 13°C (2004) | -22°C (2012) | 16 mm | 3.1 |
| Year | 13°C | 4°C | 664 mm | 89 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
664 mm in a normal year, most in July.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Iwŏn-ŭp.
The muggiest month is August, when 46 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | -12°C | 70% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | -10°C | 66% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | -6°C | 61% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | -1°C | 59% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 6°C | 63% | 99% | 1% | 0% | 0% | 0% | 0% |
| June | 12°C | 70% | 55% | 36% | 9% | 0% | 0% | 0% |
| July | 17°C | 78% | 4% | 22% | 40% | 29% | 5% | 0% |
| August | 18°C | 80% | 4% | 15% | 35% | 35% | 11% | 0% |
| September | 12°C | 74% | 58% | 29% | 11% | 3% | 0% | 0% |
| October | 4°C | 68% | 99% | 1% | 0% | 0% | 0% | 0% |
| November | -3°C | 68% | 100% | 0% | 0% | 0% | 0% | 0% |
| December | -10°C | 69% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is January, with the sky 49 percent covered on average; the cloudiest is July, at 75 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is March, averaging 12.6 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 20, with 15 h 04 min of daylight; the shortest is Dec 19, with 9 h 17 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Iwŏn-ŭp in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.