Sinmak in Summer
In summer (June, July and August), Sinmak sees average daytime highs around 28°C and overnight lows near 19°C, with 695 mm of rain over about 43 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 20% of the time across summer, and the air most often feels muggy.
Summer is Sinmak's best season of the year to visit on our travel score. For the whole year in context, see Sinmak's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 19°C
- Rainfall
- 695 mm
- 43 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.5
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sinmak in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Sinmak reaches about 28°C and drops to 19°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Sinmak
Once humidity and wind are folded in, summer brings about 10 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Sinmak 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° / -9° | 16 | 3.5 | 3.1 | 9.6 | 0.0 |
| Feb | 3° / -6° | 22 | 4.1 | 2.8 | 10.5 | 0.0 |
| Mar | 9° / -1° | 32 | 5.4 | 1.5 | 11.7 | 2.2 |
| Apr | 17° / 5° | 60 | 7.4 | 0.2 | 13 | 5.6 |
| May | 22° / 11° | 103 | 8.6 | 0 | 14.1 | 7.0 |
| Jun | 26° / 17° | 123 | 10.8 | 0 | 14.6 | 6.4 |
| Jul | 28° / 21° | 308 | 17.1 | 0 | 14.4 | 5.0 |
| Aug | 28° / 21° | 265 | 15.1 | 0 | 13.5 | 5.1 |
| Sep | 25° / 15° | 107 | 7.4 | 0 | 12.3 | 7.2 |
| Oct | 18° / 8° | 46 | 5.6 | 0 | 11 | 6.6 |
| Nov | 9° / 0° | 45 | 7.1 | 0.8 | 9.9 | 2.2 |
| Dec | 2° / -6° | 23 | 5 | 3 | 9.4 | 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
Sinmak gets around 695 mm of rain over 43 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 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 30 min in early June to 12 h 54 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 4.7 kWh/m².
Hazard calendar for Sinmak
In summer, Sinmak overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Sinmak's rainy season runs July–August, when most of the year's rain falls.
Is summer a good time to visit Sinmak?
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 Sinmak for sightseeing.
What to pack for Sinmak in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sinmak sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 43 days see rain.
Sea temperature near Sinmak in Summer
The nearest coast averages about 21°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 68 km away) is warmest in August at about 25°C and coldest in February near 2°C.
It's comfortable for a long swim from Jul 3 to Oct 5 — about 3.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 4 | 2 | 5 | 9 | 13 | 18 | 22 | 25 | 23 | 18 | 13 | 8 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 4 | Bracing |
| Feb | 2 | Bracing |
| Mar | 5 | Bracing |
| Apr | 9 | Bracing |
| May | 13 | Bracing |
| Jun | 18 | Cool |
| Jul | 22 | Refreshing |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 18 | Cool |
| Nov | 13 | Bracing |
| Dec | 8 | Bracing |
UV index in Sinmak 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 Sinmak peaks around August 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (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 | 6 | 7 | 7 | 7 | 8 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | High | High | High | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 8 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Sinmak 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 Sinmak is worst in November — around 130 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (July, 58 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) | 122 | 117 | 121 | 95 | 79 | 69 | 58 | 62 | 90 | 115 | 130 | 122 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 122 | Unhealthy |
| Feb | 117 | Unhealthy |
| Mar | 121 | Unhealthy |
| Apr | 95 | Unhealthy |
| May | 79 | Unhealthy |
| Jun | 69 | Unhealthy |
| Jul | 58 | Unhealthy |
| Aug | 62 | Unhealthy |
| Sep | 90 | Unhealthy |
| Oct | 115 | Unhealthy |
| Nov | 130 | Unhealthy |
| Dec | 122 | Unhealthy |
Where is Sinmak?
Sinmak sits at 38.4°N, 126.2°E, 110 m above sea level, in North Korea. The nearest listed city is Pongch’ŏn-ŭp, 33 km away.
Topography around Sinmak
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sinmak.
Within 3 km, the terrain around Sinmak has only modest variations in elevation — a maximum elevation change of 139 m around an average of 129 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 772 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,220 m.
The land around Sinmak is covered by cropland (79%) within 3 km, trees (40%), cropland (39%) and grassland (20%) within 16 km, and trees (41%) and cropland (39%) 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 Sinmak (38.4167°, 126.2333°, elevation 110 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.