Naju weather in April

In April, Naju sees average daytime highs of 19°C and overnight lows near 7°C, with 87 mm of rain across 7.6 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 21°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 24 min by month's end. Set against the rest of the year, April is Naju's 3rd-clearest and 4th-windiest month. For the whole year in context, see Naju's year-round climate.

Daytime high
19°
7th warmest
Overnight low
6th coldest
Rainfall
87 mm
7.6 wet days
Daylight
12 h 54 min
6:07 AM – 7:00 PM
Cloud cover
54%
3rd clearest
Wind
11 km/h
4th windiest
Solar energy
5.54 kWh/m²
Travel score
6.4
out of 10

Naju is city in South Korea.

Density
70/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 21°C by the end.

A typical April day in Naju reaches about 19°C in the afternoon and slips back to 7°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1164
2165
3175
4175
5175
6175
7186
8186
9186
10186
11186
12187
13197
14197
15197
16197
17197
18208
19208
20208
21208
22208
23209
24219
25219
26219
27219
282110
292110
302210

How April really feels in Naju

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.

Naju 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°264.51.99.90.3
Feb / -1°355.10.910.71.4
Mar13° / 647.30.611.74.0
Apr19° / 877.6012.96.4
May24° / 13°998.2013.87.1
Jun27° / 18°16410.3014.36.1
Jul29° / 22°24316.4014.14.5
Aug30° / 23°22515.9013.34.2
Sep27° / 18°1429.4012.26.5
Oct22° / 11°534.6011.17.6
Nov15° / 466.10.110.24.9
Dec / -1°2741.19.71.6

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 14% of April, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25446
35347
45347
55446
65446
75446
85446
95446
105347
115347
125347
135248
145347
155248
165248
175347
185347
195347
205347
215446
225347
235347
245347
255347
265347
275347
285347
295248
305149

Chance of precipitation in April

Any precipitation

Naju gets around 87 mm of rain over 7.6 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 25% and peaks near 26% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
123
223
323
424
524
625
725
825
926
1026
1126
1226
1326
1426
1526
1626
1726
1826
1925
2025
2125
2225
2325
2425
2525
2626
2726
2826
2926
3026

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 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
197300
297300
397300
497300
597300
697300
797300
897300
997300
1097300
1197300
1296400
1396400
1496400
1596400
1695410
1794510
1894510
1994510
2093610
2191720
2291720
2390820
2488930
25871030
26841141
27831151
28821251
29801361
30801361

Wind in April

Winds average 11 km/h in April.

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 18 min at the start of April to 13 h 24 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 6:28 AM to 5:50 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)
112.36:286:48
212.46:266:48
312.46:256:49
412.46:246:50
512.56:226:51
612.56:216:52
712.66:196:52
812.66:186:53
912.66:176:54
1012.76:156:55
1112.76:146:56
1212.76:126:57
1312.86:116:57
1412.86:106:58
1512.86:086:59
1612.96:077:00
1712.96:067:01
1813.06:047:01
1913.06:037:02
2013.06:027:03
2113.16:007:04
2213.15:597:05
2313.15:587:06
2413.25:577:06
2513.25:557:07
2613.25:547:08
2713.35:537:09
2813.35:527:10
2913.35:517:10
3013.45:507:11

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.54 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.86 kWh/m² in May across the year — April's 5.54 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Naju

In seasonPeak

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

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

Naju'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 Naju?

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

6.4
Sightseeing
4th-best month of the year
2.8
Beach & pool
7th-best month of the year

April is a reasonable time to visit Naju for sightseeing.

What to pack for Naju in April

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

In April, Naju sees daytime highs around 19°C and nights near 7°C. Worth packing: a warm layer and sun protection. About 8 days see rain.

a warm layersun protection

Sea temperature near Naju in April

The nearest coast averages about 10°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 49 km away) is warmest in August at about 25°C and coldest in February near 6°C.

It's comfortable for a long swim from Jun 26 to Oct 11 — about 3.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan8Bracing
Feb6Bracing
Mar7Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Naju 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 Naju peaks around July 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 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 highModerateJul 12UV 8Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug7Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Naju 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 Naju is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (August, 28 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorModerateMar 1960 µg/m³Aug 1129 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb48Poor
Mar61Unhealthy
Apr54Poor
May45Poor
Jun39Poor
Jul29Moderate
Aug28Moderate
Sep33Moderate
Oct35Moderate
Nov38Poor
Dec34Moderate
Location & terrain

Where is Naju?

Naju sits at 35.0°N, 126.7°E, 25 m above sea level, in South Korea. The nearest listed city is Masan, 15 km away.

Mokpo

Topography around Naju

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

Within 3 km, the terrain around Naju has significant variations in elevation — a maximum elevation change of 429 m around an average of 56 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 457 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,477 m.

The land around Naju is covered by trees (46%) and cropland (26%) within 3 km, trees (45%) and cropland (37%) within 16 km, and trees (44%), water (32%) and cropland (20%) within 80 km.

3 km
429 m
16 km
457 m
80 km
1,477 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Masan 15 km · Muan 22 km · Gwangju 23 km · Hwasun 25 km · Yeongam 25 km · Jangseong 30 km · Yeonggwang 33 km · Mokpo 38 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 Naju (35.0292°, 126.7175°, elevation 25 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).