Ŭndŏk in Summer
In summer (June, July and August), Ŭndŏk sees average daytime highs around 24°C and overnight lows near 16°C, with 408 mm of rain over about 39 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 21°C in early June to 24°C by late August. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels humid.
Summer is Ŭndŏk's best season of the year to visit on our travel score. For the whole year in context, see Ŭndŏk's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 408 mm
- 39 wet days
- Avg wind
- 7 km/h
- Travel score
- 6.1
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Ŭndŏk in Summer
Over the season highs climb from about 21°C in early June to 24°C by late August.
A typical summer day in Ŭndŏk reaches about 24°C and drops to 16°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Ŭndŏk
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.
Ŭndŏk 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 | -5° / -15° | 13 | 2 | 2.3 | 9.2 | 0.0 |
| Feb | -1° / -12° | 13 | 2.6 | 2.7 | 10.3 | 0.0 |
| Mar | 6° / -5° | 25 | 4.8 | 3.6 | 11.6 | 0.7 |
| Apr | 13° / 2° | 46 | 7.5 | 1.8 | 13.1 | 3.9 |
| May | 18° / 8° | 89 | 12.3 | 0.2 | 14.4 | 5.6 |
| Jun | 22° / 13° | 91 | 11.6 | 0 | 15.1 | 6.1 |
| Jul | 25° / 18° | 155 | 13.5 | 0 | 14.8 | 6.1 |
| Aug | 25° / 18° | 162 | 14.1 | 0 | 13.7 | 6.0 |
| Sep | 22° / 12° | 89 | 9 | 0 | 12.3 | 6.8 |
| Oct | 15° / 4° | 47 | 6.4 | 0.6 | 10.8 | 5.1 |
| Nov | 5° / -5° | 32 | 4.8 | 2.9 | 9.6 | 0.6 |
| Dec | -3° / -12° | 14 | 3.1 | 3.5 | 8.9 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 20% of the time across summer.
Chance of precipitation in Summer
Ŭndŏk gets around 408 mm of rain over 39 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 7 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 54 min in early June to 13 h 06 min 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 4.5 kWh/m².
Hazard calendar for Ŭndŏk
In summer, Ŭndŏk overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Ŭndŏk sits in the Pacific typhoon belt; the season peaks July–October.
Ŭndŏk's rainy season runs May–September, when most of the year's rain falls.
Is summer a good time to visit Ŭndŏk?
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 Ŭndŏk for sightseeing.
What to pack for Ŭndŏk in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ŭndŏk sees daytime highs around 24°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 39 days see rain.
Sea temperature near Ŭndŏk in Summer
The nearest coast averages about 18°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 44 km away) is warmest in August at about 22°C and coldest in February near 3°C.
It's comfortable for a long swim from Jul 31 to Sep 8 — about 1.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 3 | 3 | 3 | 5 | 9 | 14 | 19 | 22 | 20 | 16 | 11 | 7 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 3 | Bracing |
| Feb | 3 | Bracing |
| Mar | 3 | Bracing |
| Apr | 5 | Bracing |
| May | 9 | Bracing |
| Jun | 14 | Bracing |
| Jul | 19 | Cool |
| Aug | 22 | Refreshing |
| Sep | 20 | Cool |
| Oct | 16 | Cool |
| Nov | 11 | Bracing |
| Dec | 7 | Bracing |
UV index in Ŭndŏk in Summer
Clear-sky midday UV across summer averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ŭndŏk peaks around August 19 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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) | 1 | 2 | 3 | 5 | 7 | 7 | 5 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | Moderate | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 7 | High |
| Jul | 5 | Moderate |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Ŭndŏk 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 Ŭndŏk is worst in March — around 49 µg/m³ PM2.5 (poor), about 4.7× the cleanest month (August, 10 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) | 27 | 42 | 49 | 39 | 22 | 14 | 12 | 10 | 11 | 16 | 19 | 19 |
| Level | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 27 | Moderate |
| Feb | 42 | Poor |
| Mar | 49 | Poor |
| Apr | 39 | Poor |
| May | 22 | Moderate |
| Jun | 14 | Moderate |
| Jul | 12 | Moderate |
| Aug | 10 | Good |
| Sep | 11 | Good |
| Oct | 16 | Moderate |
| Nov | 19 | Moderate |
| Dec | 19 | Moderate |
Where is Ŭndŏk?
Ŭndŏk sits at 42.5°N, 130.3°E, 48 m above sea level, in North Korea. The nearest listed city is Aoji-ri, 5.0 km away.
Topography around Ŭndŏk
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ŭndŏk.
Within 3 km, the terrain around Ŭndŏk has significant variations in elevation — a maximum elevation change of 279 m around an average of 85 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,129 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,550 m.
The land around Ŭndŏk is covered by cropland (63%) within 3 km, trees (65%) and cropland (20%) within 16 km, and trees (54%) and water (26%) 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 Ŭndŏk (42.5188°, 130.3348°, elevation 48 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.