Ranam in Summer
In summer (June, July and August), Ranam sees average daytime highs around 21°C and overnight lows near 17°C, with 510 mm of rain over about 49 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 17°C in early June to 23°C by late August. The sky is clear or mostly clear about 14% of the time across summer, and the air most often feels humid.
Summer is Ranam's best season of the year to visit on our travel score. For the whole year in context, see Ranam's year-round climate.
- Avg daytime high
- 21°C
- warmest season of the year
- Avg overnight low
- 17°C
- Rainfall
- 510 mm
- 49 wet days
- Avg wind
- 7 km/h
- Travel score
- 5.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Ranam in Summer
Over the season highs climb from about 17°C in early June to 23°C by late August.
A typical summer day in Ranam reaches about 21°C and drops to 17°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Ranam
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.
Ranam 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 | -3° / -10° | 40 | 9.2 | 10.2 | 9.3 | 0.0 |
| Feb | -1° / -8° | 27 | 5.9 | 6.1 | 10.3 | 0.0 |
| Mar | 4° / -3° | 35 | 7.4 | 5.9 | 11.7 | 0.1 |
| Apr | 10° / 3° | 53 | 9 | 2.1 | 13.1 | 2.2 |
| May | 15° / 9° | 96 | 12.9 | 0.2 | 14.3 | 4.0 |
| Jun | 18° / 14° | 106 | 13.3 | 0 | 15 | 5.1 |
| Jul | 22° / 18° | 190 | 17.2 | 0 | 14.7 | 5.3 |
| Aug | 23° / 20° | 215 | 18.7 | 0 | 13.7 | 5.4 |
| Sep | 20° / 15° | 121 | 11.3 | 0 | 12.3 | 6.1 |
| Oct | 15° / 8° | 59 | 8.5 | 0.4 | 10.9 | 4.8 |
| Nov | 6° / 0° | 60 | 9.1 | 5.2 | 9.6 | 1.0 |
| Dec | -0° / -7° | 58 | 11.2 | 11.4 | 9 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 14% of the time across summer.
Chance of precipitation in Summer
Ranam gets around 510 mm of rain over 49 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 48 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 4.3 kWh/m².
Hazard calendar for Ranam
In summer, Ranam overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Ranam sits in the Pacific typhoon belt; the season peaks July–October.
Ranam's rainy season runs June–September, when most of the year's rain falls.
Is summer a good time to visit Ranam?
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 Ranam for sightseeing.
What to pack for Ranam in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ranam sees daytime highs around 21°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 49 days see rain.
Sea temperature near Ranam 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 19 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 27 to Sep 12 — about 1.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 5 | 3 | 3 | 6 | 9 | 14 | 19 | 22 | 20 | 16 | 12 | 8 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 5 | Bracing |
| Feb | 3 | Bracing |
| Mar | 3 | Bracing |
| Apr | 6 | Bracing |
| May | 9 | Bracing |
| Jun | 14 | Bracing |
| Jul | 19 | Cool |
| Aug | 22 | Refreshing |
| Sep | 20 | Cool |
| Oct | 16 | Cool |
| Nov | 12 | Bracing |
| Dec | 8 | Bracing |
UV index in Ranam 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 Ranam 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 18 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 | 3 | 4 | 5 | 7 | 7 | 5 | 8 | 7 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | High | High | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 7 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Ranam 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 Ranam is worst in March — around 48 µg/m³ PM2.5 (poor), about 3.1× the cleanest month (August, 16 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) | 38 | 39 | 48 | 40 | 31 | 21 | 18 | 16 | 18 | 25 | 26 | 26 |
| Level | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 38 | Poor |
| Feb | 39 | Poor |
| Mar | 48 | Poor |
| Apr | 40 | Poor |
| May | 31 | Moderate |
| Jun | 21 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 18 | Moderate |
| Oct | 25 | Moderate |
| Nov | 26 | Moderate |
| Dec | 26 | Moderate |
Where is Ranam?
Ranam sits at 41.7°N, 129.7°E, 24 m above sea level, in North Korea. The nearest listed city is Chongjin, 12 km away.
Topography around Ranam
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ranam.
Within 3 km, the terrain around Ranam has significant variations in elevation — a maximum elevation change of 258 m around an average of 81 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,014 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,500 m.
The land around Ranam is covered by cropland (31%), trees (30%) and grassland (23%) within 3 km, trees (36%) and water (31%) within 16 km, and trees (60%) 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 Ranam (41.7136°, 129.6844°, elevation 24 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.