Sunan weather in April

In April, Sunan sees average daytime highs of 17°C and overnight lows near 6°C, with 57 mm of precipitation across 6.7 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 14°C in the first days to 20°C by the end. The sky is clear or mostly clear about 45% 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 36 min by month's end. Set against the rest of the year, April is Sunan's 7th-clearest and 1st-windiest month. For the whole year in context, see Sunan's year-round climate.

Daytime high
17°
7th warmest
Overnight low
6th coldest
Precipitation
57 mm
6.7 wet days
Daylight
13 hours
6:07 AM – 7:08 PM
Cloud cover
49%
7th clearest
Wind
11 km/h
1st windiest
Solar energy
5.38 kWh/m²
Travel score
5.8
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 14°C in the first days to 20°C by the end.

A typical April day in Sunan reaches about 17°C in the afternoon and slips back to 6°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 22°C. Set against its neighbours, April runs about 8°C warmer than March and about 6°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1132
2132
3143
4143
5143
6143
7154
8154
9154
10164
11164
12165
13165
14175
15175
16176
17176
18176
19186
20187
21187
22187
23197
24197
25198
26198
27198
28208
29209
30209

How April really feels in Sunan

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 4 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
4
wind chill below the day's low

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

Sunan 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-1° / -10°1332.89.60.0
Feb / -6°213.72.410.50.0
Mar / -1°2951.411.72.2
Apr17° / 576.70.2135.8
May23° / 12°1018.2014.17.1
Jun27° / 17°11710.3014.76.5
Jul28° / 21°29416.4014.54.9
Aug29° / 21°24414013.55.1
Sep25° / 16°1006.9012.37.3
Oct19° / 506.20116.6
Nov / 517.40.89.92.2
Dec / -7°255.53.39.30.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36337
46337
56337
66337
76238
86238
96238
106238
116139
126139
136040
146040
156040
165941
175941
185941
195941
205743
215743
225743
235644
245644
255545
265644
275545
285545
295545
305446

Chance of precipitation in April

Any precipitation

Sunan gets around 57 mm of rain and snow over 6.7 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 22% and peaks near 28% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
116
216
316
417
517
618
718
819
919
1019
1120
1220
1321
1421
1522
1622
1723
1824
1924
2025
2125
2226
2326
2427
2527
2627
2727
2828
2928
3028

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 99% 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
25973
26964
27964
28955
29955
30946

Wind in April

Winds average 11 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over April. Sunrise moves from 6:30 AM to 5:47 AM, and sunset from 6:53 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:306:53
212.46:296:54
312.56:276:55
412.56:266:56
512.66:246:57
612.66:226:58
712.66:216:59
812.76:197:00
912.76:187:01
1012.86:167:02
1112.86:147:03
1212.96:137:04
1312.96:117:05
1412.96:107:06
1513.06:087:07
1613.06:077:08
1713.16:057:09
1813.16:047:10
1913.16:027:11
2013.26:017:12
2113.25:597:13
2213.35:587:14
2313.35:567:15
2413.45:557:16
2513.45:547:17
2613.45:527:18
2713.55:517:19
2813.55:507:20
2913.55:487:21
3013.65:477:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.38 kWh/m².

For context, solar energy here swings from a low near 2.2 kWh/m² to a high of 5.77 kWh/m² in May across the year — April's 5.38 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Sunan

In seasonPeak

In April, Sunan sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Sunan sits in the Pacific typhoon belt; the season peaks July–October.

Sunan'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 Sunan?

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

5.8
Sightseeing
5th-best month of the year
1.5
Beach & pool
7th-best month of the year

April is a reasonable time to visit Sunan for sightseeing.

What to pack for Sunan in April

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

In April, Sunan sees daytime highs around 17°C and nights near 6°C. Worth packing: a warm layer and sun protection. About 7 days see rain.

a warm layersun protection

Sea temperature near Sunan 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 33 km away) is warmest in August at about 25°C and coldest in February near -0°C.

It's comfortable for a long swim from Jul 3 to Oct 2 — about 3 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan2Bracing
Feb0Bracing
Mar2Bracing
Apr7Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct18Cool
Nov12Bracing
Dec6Bracing

UV index in Sunan 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 Sunan peaks around August 16 at about 7 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowAug 16UV 7Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May7High
Jun6High
Jul7High
Aug8Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Sunan 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 Sunan is worst in January — around 201 µg/m³ PM2.5 (very unhealthy), about 2.0× the cleanest month (July, 102 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090120150180210JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyVery unhealthyJan 15198 µg/m³Jul 21103 µg/m³
PM2.5 (µg/m³)Level
Jan201Very unhealthy
Feb171Very unhealthy
Mar180Very unhealthy
Apr150Unhealthy
May132Unhealthy
Jun124Unhealthy
Jul102Unhealthy
Aug107Unhealthy
Sep152Very unhealthy
Oct182Very unhealthy
Nov195Very unhealthy
Dec181Very unhealthy
Location & terrain

Where is Sunan?

Sunan sits at 39.2°N, 125.7°E, 37 m above sea level, in North Korea. The nearest listed city is P’yŏngsŏng, 16 km away.

Sŭngho 1-tong

Topography around Sunan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sunan.

Within 3 km, the terrain around Sunan has only modest variations in elevation — a maximum elevation change of 72 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 546 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,229 m.

The land around Sunan is covered by cropland (68%) within 3 km, cropland (52%) and trees (35%) within 16 km, and cropland (38%), trees (34%) and water (20%) within 80 km.

3 km
72 m
16 km
546 m
80 km
1,229 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: P’yŏngsŏng 16 km · Pyongyang 20 km · Man’gyŏngdae-ri 24 km · Ch’ŏsal-li 27 km · Paek'ak 30 km · Kangsŏn 31 km · Sunch’ŏn 33 km · Sŭngho 1-tong 34 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 Sunan (39.2032°, 125.6931°, elevation 37 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).