Jangheung weather in April

In April, Jangheung sees average daytime highs of 18°C and overnight lows near 8°C, with 101 mm of rain across 8 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 39% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 18 min by month's end. Set against the rest of the year, April is Jangheung's 4th-clearest and 5th-windiest month. For the whole year in context, see Jangheung's year-round climate.

Daytime high
18°
7th warmest
Overnight low
6th coldest
Rainfall
101 mm
8 wet days
Daylight
12 h 54 min
6:07 AM – 6:59 PM
Cloud cover
55%
4th clearest
Wind
12 km/h
5th windiest
Solar energy
5.42 kWh/m²
Travel score
6.1
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 20°C by the end.

A typical April day in Jangheung reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1155
2165
3166
4166
5166
6166
7176
8177
9177
10177
11177
12187
13187
14188
15188
16188
17188
18188
19199
20199
21199
22199
23199
241910
252010
262010
272010
282010
292011
302011

How April really feels in Jangheung

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

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Jangheung 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 / -3°294.41.29.90.2
Feb / -1°3850.810.71.4
Mar13° / 727.80.511.73.6
Apr18° / 1018012.86.1
May23° / 13°1148.1013.87.0
Jun25° / 18°17510.2014.36.4
Jul28° / 23°26816.1014.14.9
Aug29° / 23°23415.8013.34.6
Sep26° / 18°14610.3012.26.6
Oct21° / 12°614.8011.17.5
Nov14° / 485.5010.24.8
Dec / -1°293.90.59.71.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35248
45248
55248
65248
75248
85248
95149
105050
115050
125050
134951
144951
154951
165050
175050
185050
195149
205149
215149
225149
235149
245248
255248
265149
275149
285149
295149
305050

Chance of precipitation in April

Any precipitation

Jangheung gets around 101 mm of rain over 8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 26% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
125
225
325
426
526
626
726
827
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1926
2026
2126
2226
2326
2426
2527
2627
2727
2827
2927
3027

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
297300
397300
497300
597300
697300
797300
897300
996400
1096400
1196400
1296400
1395500
1495500
1593610
1693610
1792710
1892710
1991810
2090910
21881020
22871120
23861220
24841330
25831430
26811540
27791650
28781750
29771760
30751861

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 11 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over April. Sunrise moves from 6:27 AM to 5:49 AM, and sunset from 6:47 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:276:47
212.46:266:48
312.46:246:48
412.46:236:49
512.56:226:50
612.56:206:51
712.56:196:52
812.66:176:52
912.66:166:53
1012.76:156:54
1112.76:136:55
1212.76:126:55
1312.86:116:56
1412.86:096:57
1512.86:086:58
1612.96:076:59
1712.96:056:59
1812.96:047:00
1913.06:037:01
2013.06:017:02
2113.06:007:03
2213.15:597:03
2313.15:587:04
2413.15:567:05
2513.25:557:06
2613.25:547:07
2713.25:537:08
2813.35:527:08
2913.35:517:09
3013.35:497:10

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.42 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 5.72 kWh/m² in May across the year — April's 5.42 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
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 Jangheung

In seasonPeak

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

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

Jangheung's rainy season runs June–September, 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 Jangheung?

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

6.1
Sightseeing
5th-best month of the year
2.1
Beach & pool
7th-best month of the year

April is a reasonable time to visit Jangheung for sightseeing.

What to pack for Jangheung in April

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

In April, Jangheung sees daytime highs around 18°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 8 days see rain.

a warm layerrain gearsun protection

Sea temperature near Jangheung in April

The nearest coast averages about 13°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 40 km away) is warmest in August at about 26°C and coldest in March near 12°C.

It's comfortable for a long swim from Jun 23 to Oct 19 — about 3.9 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar12Bracing
Apr13Bracing
May16Cool
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep24Refreshing
Oct20Refreshing
Nov17Cool
Dec15Bracing

UV index in Jangheung in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks 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 Jangheung peaks around July 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 14UV 8Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Jangheung 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 Jangheung is worst in March — around 43 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (July, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1842 µg/m³Jul 2418 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb36Poor
Mar43Poor
Apr37Poor
May30Moderate
Jun25Moderate
Jul18Moderate
Aug18Moderate
Sep22Moderate
Oct24Moderate
Nov27Moderate
Dec26Moderate
Location & terrain

Where is Jangheung?

Jangheung sits at 34.7°N, 126.9°E, 28 m above sea level, in South Korea. The nearest listed city is Boseong, 19 km away.

NajuHwasunBeolgyoMokpoMasan

Topography around Jangheung

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

Within 3 km, the terrain around Jangheung has significant variations in elevation — a maximum elevation change of 365 m around an average of 67 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 772 m; within 80 km, large variations in elevation — a maximum elevation change of 1,195 m.

The land around Jangheung is covered by trees (45%) and cropland (32%) within 3 km, trees (65%) and cropland (21%) within 16 km, and water (43%) and trees (38%) within 80 km.

3 km
365 m
16 km
772 m
80 km
1,195 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Boseong 19 km · Yeongam 23 km · Haenam 31 km · Naju 42 km · Hwasun 43 km · Beolgyo 44 km · Mokpo 49 km · Masan 50 km

South Korea travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
220 V · 60 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$36,227
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.5
per 100k, 2023
Road deaths
8.6
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 522
Religion
none 60%Protestant 17%Buddhist 16%Catholic 6%

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 Jangheung (34.6816°, 126.9069°, elevation 28 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).