Ŭllyul in Spring
In spring (March, April and May), Ŭllyul sees average daytime highs around 16°C and overnight lows near 6°C, with 153 mm of precipitation over about 18 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 6°C in early March to 24°C by late May. The sky is clear or mostly clear about 48% of the time across spring, and the air most often feels dry.
Spring is Ŭllyul's 3rd-best season to visit on our travel score. For the whole year in context, see Ŭllyul's year-round climate.
- Avg daytime high
- 16°C
- 3rd-warmest season
- Avg overnight low
- 6°C
- Precipitation
- 153 mm
- 18 wet days
- Avg wind
- 12 km/h
- Travel score
- 5.0
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Ŭllyul in Spring
Over the season highs climb from about 6°C in early March to 24°C by late May.
A typical spring day in Ŭllyul reaches about 16°C and drops to 6°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Ŭllyul
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 33 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Ŭllyul 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 | 0° / -7° | 13 | 3.3 | 2.8 | 9.6 | 0.0 |
| Feb | 3° / -5° | 17 | 3.6 | 2 | 10.5 | 0.0 |
| Mar | 9° / -0° | 24 | 4.2 | 1 | 11.7 | 2.1 |
| Apr | 16° / 6° | 46 | 6.2 | 0.1 | 13 | 5.6 |
| May | 22° / 12° | 83 | 7.3 | 0 | 14.1 | 7.2 |
| Jun | 26° / 17° | 91 | 8.6 | 0 | 14.6 | 6.8 |
| Jul | 28° / 22° | 227 | 14.6 | 0 | 14.4 | 5.2 |
| Aug | 29° / 22° | 195 | 13.6 | 0 | 13.5 | 5.2 |
| Sep | 25° / 16° | 86 | 6.6 | 0 | 12.3 | 7.3 |
| Oct | 19° / 9° | 40 | 5.8 | 0 | 11 | 6.8 |
| Nov | 10° / 2° | 43 | 7.1 | 0.9 | 9.9 | 2.7 |
| Dec | 3° / -4° | 22 | 5.3 | 2.4 | 9.4 | 0.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 48% of the time across spring.
Chance of precipitation in Spring
Ŭllyul gets around 153 mm of rain and snow over 18 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 12 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 06 min in early March to 14 h 30 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 5.5 kWh/m².
Hazard calendar for Ŭllyul
In spring, Ŭllyul overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ŭllyul sits in the Pacific typhoon belt; the season peaks July–October.
Ŭllyul's rainy season runs July–August, when most of the year's rain falls.
Is spring a good time to visit Ŭllyul?
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 reasonable time to visit Ŭllyul for sightseeing.
What to pack for Ŭllyul in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Ŭllyul sees daytime highs around 16°C and nights near 6°C. Pack a warm layer and sun protection. Worth having: light clothes. About 18 days see rain.
Sea temperature near Ŭllyul in Spring
The nearest coast averages about 7°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 30 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 16 to Oct 3 — about 2.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 6 | 3 | 4 | 7 | 11 | 16 | 20 | 22 | 22 | 19 | 15 | 10 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 6 | Bracing |
| Feb | 3 | Bracing |
| Mar | 4 | Bracing |
| Apr | 7 | Bracing |
| May | 11 | Bracing |
| Jun | 16 | Cool |
| Jul | 20 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 19 | Cool |
| Nov | 15 | Bracing |
| Dec | 10 | Bracing |
UV index in Ŭllyul in Spring
Clear-sky midday UV across spring averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ŭllyul peaks around August 13 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 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 | 6 | 8 | 8 | 7 | 4 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | High | High | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 4 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Ŭllyul 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 Ŭllyul is worst in November — around 82 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (July, 40 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) | 80 | 78 | 80 | 66 | 54 | 46 | 40 | 41 | 58 | 72 | 82 | 77 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 80 | Unhealthy |
| Feb | 78 | Unhealthy |
| Mar | 80 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 54 | Poor |
| Jun | 46 | Poor |
| Jul | 40 | Poor |
| Aug | 41 | Poor |
| Sep | 58 | Unhealthy |
| Oct | 72 | Unhealthy |
| Nov | 82 | Unhealthy |
| Dec | 77 | Unhealthy |
Where is Ŭllyul?
Ŭllyul sits at 38.5°N, 125.2°E, 29 m above sea level, in North Korea. The nearest listed city is Kwail-ŭp, 17 km away.
Topography around Ŭllyul
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ŭllyul.
Within 3 km, the terrain around Ŭllyul has significant variations in elevation — a maximum elevation change of 264 m around an average of 49 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,063 m; within 80 km, large variations in elevation — a maximum elevation change of 1,037 m.
The land around Ŭllyul is covered by cropland (70%) within 3 km, trees (45%) and cropland (42%) within 16 km, and water (38%), cropland (36%) and trees (21%) 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 Ŭllyul (38.5139°, 125.1897°, elevation 29 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.