Ŭllyul weather in April

In April, Ŭllyul sees average daytime highs of 16°C and overnight lows near 6°C, with 46 mm of precipitation across 6.2 wet days and about 13 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 19°C by the end. The sky is clear or mostly clear about 49% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 30 min by month's end. Set against the rest of the year, April is Ŭllyul's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Ŭllyul's year-round climate.

Daytime high
16°
7th warmest
Overnight low
6th coldest
Precipitation
46 mm
6.2 wet days
Daylight
13 hours
6:09 AM – 7:09 PM
Cloud cover
46%
3rd clearest
Wind
12 km/h
3rd windiest
Solar energy
5.6 kWh/m²
Travel score
5.6
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 19°C by the end.

A typical April day in Ŭllyul reaches about 16°C in the afternoon and slips back to 6°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, April runs about 7°C warmer than March and about 6°C cooler than May.

10°20°151015202530
Avg high (°C)Avg low (°C)
1133
2133
3133
4134
5144
6144
7144
8144
9155
10155
11155
12155
13166
14166
15166
16166
17176
18177
19177
20177
21177
22188
23188
24188
25188
26198
27199
28199
29199
30199

How April really feels in Ŭllyul

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 2 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
2
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Ŭllyul weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -7°133.32.89.60.0
Feb / -5°173.6210.50.0
Mar / -0°244.2111.72.1
Apr16° / 466.20.1135.6
May22° / 12°837.3014.17.2
Jun26° / 17°918.6014.66.8
Jul28° / 22°22714.6014.45.2
Aug29° / 22°19513.6013.55.2
Sep25° / 16°866.6012.37.3
Oct19° / 405.80116.8
Nov10° / 437.10.99.92.7
Dec / -4°225.32.49.40.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26436
36436
46436
56436
66436
76436
86337
96337
106337
116337
126238
136238
146238
156139
166040
176040
186040
195941
205941
215842
225842
235743
245743
255644
265644
275644
285545
295545
305545

Chance of precipitation in April

Any precipitation

Ŭllyul gets around 46 mm of rain and snow over 6.2 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 24% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
115
215
316
416
517
617
718
818
919
1019
1120
1220
1321
1421
1521
1622
1722
1822
1922
2022
2122
2223
2323
2423
2523
2624
2724
2824
2924
3024

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
15991
16991
17991
18991
19991
20991
21991
22982
23982
24973
25964
26964
27955
28946
29946
30937

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 6:33 AM to 5:50 AM, and sunset from 6:55 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:336:55
212.46:316:56
312.56:296:57
412.56:286:58
512.56:266:59
612.66:257:00
712.66:237:01
812.76:227:02
912.76:207:03
1012.86:197:04
1112.86:177:05
1212.86:157:06
1312.96:147:07
1412.96:127:08
1513.06:117:09
1613.06:097:09
1713.06:087:10
1813.16:077:11
1913.16:057:12
2013.26:047:13
2113.26:027:14
2213.26:017:15
2313.35:597:16
2413.35:587:17
2513.45:577:18
2613.45:557:19
2713.45:547:20
2813.55:537:21
2913.55:517:22
3013.55:507:23

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.6 kWh/m².

For context, solar energy here swings from a low near 2.1 kWh/m² to a high of 6 kWh/m² in May across the year — April's 5.6 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in April

Hazard calendar for Ŭllyul

In seasonPeak

In April, Ŭllyul sits inside 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.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Ŭllyul?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.6
Sightseeing
5th-best month of the year
1.2
Beach & pool
7th-best month of the year

April is a reasonable time to visit Ŭllyul for sightseeing.

What to pack for Ŭllyul in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Ŭllyul sees daytime highs around 16°C and nights near 6°C. Worth packing: a warm layer and sun protection. About 6 days see rain.

a warm layersun protection

Sea temperature near Ŭllyul in April

The nearest coast averages about 7°C in April — 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.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb3Bracing
Mar4Bracing
Apr7Bracing
May11Bracing
Jun16Cool
Jul20Refreshing
Aug22Refreshing
Sep22Refreshing
Oct19Cool
Nov15Bracing
Dec10Bracing

UV index in Ŭllyul in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks 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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowAug 13UV 8Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7High
Jun6High
Jul8Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Ŭllyul in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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).

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyNov 1981 µg/m³Jul 2240 µg/m³
PM2.5 (µg/m³)Level
Jan80Unhealthy
Feb78Unhealthy
Mar80Unhealthy
Apr66Unhealthy
May54Poor
Jun46Poor
Jul40Poor
Aug41Poor
Sep58Unhealthy
Oct72Unhealthy
Nov82Unhealthy
Dec77Unhealthy
Location & terrain

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.

3 km
264 m
16 km
1,063 m
80 km
1,037 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Kwail-ŭp 17 km · Songhwa 18 km · Samch’ŏn 21 km · Ŭnch’ŏn-ŭp 21 km · Chaeryŏng-ni 25 km · Anak 26 km · Changyŏn 30 km · Namp’o 31 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).