Hyesan in Spring
In spring (March, April and May), Hyesan sees average daytime highs around 9°C and overnight lows near -3°C, with 184 mm of precipitation over about 33 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about -2°C in early March to 18°C by late May. The sky is clear or mostly clear about 27% of the time across spring, and the air most often feels dry.
Spring is Hyesan's 3rd-best season to visit on our travel score. For the whole year in context, see Hyesan's year-round climate.
- Avg daytime high
- 9°C
- 3rd-warmest season
- Avg overnight low
- -3°C
- Precipitation
- 184 mm
- 33 wet days
- Avg wind
- 9 km/h
- Travel score
- 2.2
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Hyesan in Spring
Over the season highs climb from about -2°C in early March to 18°C by late May.
A typical spring day in Hyesan reaches about 9°C and drops to -3°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Hyesan
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 65 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Hyesan weather by month
How the three spring months (March, April and May) 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 | -10° / -22° | 11 | 3.2 | 5 | 9.4 | 0.0 |
| Feb | -6° / -19° | 18 | 4.6 | 6.1 | 10.3 | 0.0 |
| Mar | 1° / -11° | 33 | 7.9 | 8.5 | 11.7 | 0.0 |
| Apr | 10° / -2° | 56 | 10.5 | 7.1 | 13.1 | 2.0 |
| May | 16° / 5° | 95 | 14.9 | 2 | 14.3 | 4.5 |
| Jun | 20° / 10° | 97 | 15.5 | 0 | 14.9 | 5.4 |
| Jul | 23° / 14° | 164 | 17.3 | 0 | 14.7 | 5.6 |
| Aug | 23° / 14° | 136 | 14.2 | 0 | 13.7 | 6.0 |
| Sep | 18° / 7° | 71 | 7.9 | 0.1 | 12.3 | 6.1 |
| Oct | 11° / -1° | 43 | 7.6 | 3 | 10.9 | 2.9 |
| Nov | 1° / -10° | 38 | 7.7 | 7.4 | 9.7 | 0.0 |
| Dec | -8° / -20° | 18 | 5.2 | 7 | 9.1 | 0.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 27% of the time across spring.
Chance of precipitation in Spring
Hyesan gets around 184 mm of rain and snow over 33 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 9 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 hours in early March to 14 h 42 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.3 kWh/m².
Hazard calendar for Hyesan
In spring, Hyesan overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Hyesan's rainy season runs May–August, when most of the year's rain falls.
Is spring a good time to visit Hyesan?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Hyesan.
What to pack for Hyesan in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Hyesan sees daytime highs around 9°C and nights near -3°C. Pack a warm layer, a heavy coat and rain gear. Worth having: sun protection. About 33 days see rain.
UV index in Hyesan in Spring
Clear-sky midday UV across spring 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 Hyesan peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 | 6 | 7 | 7 | 6 | 9 | 7 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | High | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | Very high |
| Jun | 7 | Very high |
| Jul | 6 | High |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Hyesan in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Hyesan is worst in March — around 36 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (August, 15 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) | 28 | 29 | 36 | 34 | 29 | 22 | 18 | 15 | 18 | 26 | 23 | 25 |
| Level | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 28 | Moderate |
| Feb | 29 | Moderate |
| Mar | 36 | Poor |
| Apr | 34 | Moderate |
| May | 29 | Moderate |
| Jun | 22 | Moderate |
| Jul | 18 | Moderate |
| Aug | 15 | Moderate |
| Sep | 18 | Moderate |
| Oct | 26 | Moderate |
| Nov | 23 | Moderate |
| Dec | 25 | Moderate |
Where is Hyesan?
Hyesan sits at 41.4°N, 128.2°E, 709 m above sea level, in North Korea. The nearest listed city is Hyesan-dong, 1.0 km away.
Topography around Hyesan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hyesan.
Within 3 km, the terrain around Hyesan has significant variations in elevation — a maximum elevation change of 366 m around an average of 790 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 990 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.
The land around Hyesan is covered by cropland (33%), artificial surfaces (27%) and trees (22%) within 3 km, trees (48%) and grassland (28%) within 16 km, and trees (85%) 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 Hyesan (41.4017°, 128.1778°, elevation 709 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.