Iwŏn-ŭp in Summer
In summer (June, July and August), Iwŏn-ŭp sees average daytime highs around 22°C and overnight lows near 19°C, with 352 mm of rain over about 27 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 18°C in early June to 23°C by late August. The sky is clear or mostly clear about 23% of the time across summer, and the air most often feels muggy.
Summer is Iwŏn-ŭp's best season of the year to visit on our travel score. For the whole year in context, see Iwŏn-ŭp's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 19°C
- Rainfall
- 352 mm
- 27 wet days
- Avg wind
- 10 km/h
- Travel score
- 6.6
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Iwŏn-ŭp in Summer
Over the season highs climb from about 18°C in early June to 23°C by late August.
A typical summer day in Iwŏn-ŭp reaches about 22°C and drops to 19°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Iwŏn-ŭp
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Iwŏn-ŭp weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -6° | 31 | 6.6 | 7.3 | 9.5 | 0.0 |
| Feb | 2° / -4° | 23 | 5.1 | 5.4 | 10.4 | 0.0 |
| Mar | 5° / 0° | 28 | 5.2 | 3.8 | 11.7 | 0.5 |
| Apr | 11° / 5° | 40 | 6.1 | 0.8 | 13 | 2.9 |
| May | 15° / 10° | 66 | 7.2 | 0 | 14.2 | 5.1 |
| Jun | 19° / 15° | 62 | 6.1 | 0 | 14.8 | 6.5 |
| Jul | 23° / 20° | 141 | 10.1 | 0 | 14.6 | 6.6 |
| Aug | 24° / 21° | 150 | 11.2 | 0 | 13.6 | 6.7 |
| Sep | 21° / 17° | 89 | 6.8 | 0 | 12.3 | 7.0 |
| Oct | 16° / 11° | 46 | 5.7 | 0.1 | 10.9 | 5.8 |
| Nov | 9° / 4° | 49 | 7.2 | 2 | 9.8 | 1.9 |
| Dec | 2° / -3° | 37 | 6.9 | 5.8 | 9.2 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 23% of the time across summer.
Chance of precipitation in Summer
Iwŏn-ŭp gets around 352 mm of rain over 27 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 10 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 42 min in early June to 13 hours by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.1 kWh/m².
Hazard calendar for Iwŏn-ŭp
In summer, Iwŏn-ŭp overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Iwŏn-ŭp sits in the Pacific typhoon belt; the season peaks July–October.
Iwŏn-ŭp's rainy season runs July–September, when most of the year's rain falls.
Is summer a good time to visit Iwŏn-ŭp?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Iwŏn-ŭp for sightseeing.
What to pack for Iwŏn-ŭp in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Iwŏn-ŭp sees daytime highs around 22°C and nights near 19°C. Worth packing: light clothes, rain gear and sun protection. About 27 days see rain.
Sea temperature near Iwŏn-ŭp in Summer
The nearest coast averages about 20°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in August at about 23°C and coldest in February near 5°C.
It's comfortable for a long swim from Jul 15 to Sep 22 — about 2.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 6 | 5 | 5 | 7 | 11 | 16 | 20 | 23 | 21 | 17 | 13 | 8 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 6 | Bracing |
| Feb | 5 | Bracing |
| Mar | 5 | Bracing |
| Apr | 7 | Bracing |
| May | 11 | Bracing |
| Jun | 16 | Cool |
| Jul | 20 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 17 | Cool |
| Nov | 13 | Bracing |
| Dec | 8 | Bracing |
UV index in Iwŏn-ŭp in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Iwŏn-ŭp peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 4 | 5 | 7 | 6 | 6 | 8 | 7 | 5 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | High | High | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Iwŏn-ŭp in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Iwŏn-ŭp is worst in April — around 47 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (August, 17 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 29 | 36 | 46 | 47 | 36 | 25 | 20 | 17 | 18 | 24 | 26 | 23 |
| Level | Moderate | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 29 | Moderate |
| Feb | 36 | Poor |
| Mar | 46 | Poor |
| Apr | 47 | Poor |
| May | 36 | Poor |
| Jun | 25 | Moderate |
| Jul | 20 | Moderate |
| Aug | 17 | Moderate |
| Sep | 18 | Moderate |
| Oct | 24 | Moderate |
| Nov | 26 | Moderate |
| Dec | 23 | Moderate |
Where is Iwŏn-ŭp?
Iwŏn-ŭp sits at 40.3°N, 128.7°E, 2 m above sea level, in North Korea. The nearest listed city is Changam-ch’on, 33 km away.
Topography around Iwŏn-ŭp
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Iwŏn-ŭp.
Within 3 km, the terrain around Iwŏn-ŭp has only modest variations in elevation — a maximum elevation change of 100 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,000 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,358 m.
The land around Iwŏn-ŭp is covered by cropland (47%) and water (38%) within 3 km, trees (46%) and water (32%) within 16 km, and trees (52%) and water (34%) within 80 km.
North Korea travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Safe drinking water
- 67%
- of population, 2023
- Road deaths
- 24.2
- per 100k/yr, 2019
- Income group
- Low
- World Bank
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Iwŏn-ŭp (40.3231°, 128.6553°, elevation 2 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.