Haenam weather in April

In April, Haenam sees average daytime highs of 14°C and overnight lows near 10°C, with 94 mm of rain across 7.9 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 12°C in the first days to 16°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 Haenam's 3rd-clearest and 6th-windiest month. For the whole year in context, see Haenam's year-round climate.

Daytime high
14°
7th warmest
Overnight low
10°
6th coldest
Rainfall
94 mm
7.9 wet days
Daylight
12 h 54 min
6:08 AM – 7:00 PM
Cloud cover
54%
3rd clearest
Wind
17 km/h
6th windiest
Solar energy
5.53 kWh/m²
Travel score
4.4
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 12°C in the first days to 16°C by the end.

A typical April day in Haenam reaches about 14°C in the afternoon and slips back to 10°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 16°C. Set against its neighbours, April runs about 4°C warmer than March and about 4°C cooler than May.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
1128
2128
3128
4129
5139
6139
7139
8139
9139
101310
111310
121410
131410
141410
151410
161411
171411
181411
191511
201511
211511
221512
231512
241512
251512
261612
271612
281613
291613
301613

How April really feels in Haenam

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.

Haenam 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 / 376.72.59.90.4
Feb / 426.21.510.70.9
Mar10° / 737.50.411.72.4
Apr14° / 10°947.9012.84.4
May18° / 15°1047.6013.86.2
Jun22° / 19°1729.6014.36.4
Jul26° / 23°22312.3014.16.2
Aug27° / 25°18211.6013.36.3
Sep24° / 21°1408.5012.27.1
Oct20° / 16°574.7011.17.2
Nov14° / 10°506.6010.24.5
Dec / 376.41.39.71.7

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 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15248
25248
35347
45347
55248
65248
75248
85248
95248
105248
115248
125149
135149
145149
155149
165248
175248
185248
195248
205347
215248
225248
235248
245248
255248
265248
275149
285149
295149
305050

Chance of precipitation in April

Any precipitation

Haenam gets around 94 mm of rain over 7.9 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 (%)
124
224
325
425
526
626
726
826
927
1027
1127
1227
1327
1427
1527
1627
1726
1826
1926
2025
2125
2225
2325
2425
2525
2625
2725
2825
2925
3025

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69820
79820
89820
99820
109730
119730
129640
139640
149550
159550
169460
179370
189271
199181
209091
2189101
2287121
2385132
2483152
2582162
2679183
2778193
2875214
2974224
3072244

Wind in April

Winds average 17 km/h in April.

Across April, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

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 6:29 AM to 5:51 AM, and sunset from 6:48 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:296:48
212.46:276:49
312.46:266:50
412.46:246:50
512.56:236:51
612.56:216:52
712.56:206:53
812.66:196:53
912.66:176:54
1012.76:166:55
1112.76:156:56
1212.76:136:57
1312.86:126:57
1412.86:116:58
1512.86:096:59
1612.96:087:00
1712.96:077:01
1812.96:057:01
1913.06:047:02
2013.06:037:03
2113.06:017:04
2213.16:007:05
2313.15:597:05
2413.15:587:06
2513.25:577:07
2613.25:557:08
2713.25:547:09
2813.35:537:09
2913.35:527:10
3013.35:517:11

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.53 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 5.85 kWh/m² in May across the year — April's 5.53 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in April

Hazard calendar for Haenam

In seasonPeak

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

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

Haenam's rainy season runs May–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 Haenam?

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

4.4
Sightseeing
8th-best month of the year
0.2
Beach & pool
8th-best month of the year

April is a reasonable time to visit Haenam for sightseeing.

What to pack for Haenam in April

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

In April, Haenam sees daytime highs around 14°C and nights near 10°C. Worth packing: a warm layer and sun protection. About 8 days see rain.

a warm layersun protection

Sea temperature near Haenam in April

The nearest coast averages about 12°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 25°C and coldest in March near 11°C.

It's comfortable for a long swim from Jun 28 to Oct 14 — about 3.6 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar11Bracing
Apr12Bracing
May15Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct20Cool
Nov16Cool
Dec14Bracing

UV index in Haenam 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 Haenam peaks around August 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 highHighModerateAug 14UV 8Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Haenam 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 Haenam 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 Haenam?

Haenam sits at 34.6°N, 126.6°E, 39 m above sea level, in South Korea. The nearest listed city is Yeongam, 27 km away.

MuanBoseongNajuSinanHwasun

Topography around Haenam

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

Within 3 km, the terrain around Haenam has significant variations in elevation — a maximum elevation change of 462 m around an average of 123 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 666 m; within 80 km, large variations in elevation — a maximum elevation change of 1,172 m.

The land around Haenam is covered by trees (59%) and cropland (24%) within 3 km, trees (48%) and cropland (40%) within 16 km, and water (57%) and trees (27%) within 80 km.

3 km
462 m
16 km
666 m
80 km
1,172 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Yeongam 27 km · Jangheung 31 km · Mokpo 33 km · Muan 48 km · Boseong 49 km · Naju 52 km · Sinan 53 km · Hwasun 65 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 Haenam (34.5711°, 126.5989°, elevation 39 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).