Wŏnju weather in April

In April, Wŏnju sees average daytime highs of 17°C and overnight lows near 5°C, with 88 mm of precipitation across 8.1 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 14°C in the first days to 20°C by the end. The sky is clear or mostly clear about 38% 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 Wŏnju's 6th-clearest and 1st-windiest month. For the whole year in context, see Wŏnju's year-round climate.

Daytime high
17°
7th warmest
Overnight low
6th coldest
Precipitation
88 mm
8.1 wet days
Daylight
13 hours
6:00 AM – 6:57 PM
Cloud cover
54%
6th clearest
Wind
9 km/h
1st windiest
Solar energy
5.39 kWh/m²
Travel score
5.7
out of 10

Wŏnju is city in South Korea.

Density
384/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 14°C in the first days to 20°C by the end.

A typical April day in Wŏnju reaches about 17°C in the afternoon and slips back to 5°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 23°C. Set against its neighbours, April runs about 7°C warmer than March and about 5°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1142
2142
3143
4153
5153
6153
7153
8164
9164
10164
11164
12164
13175
14175
15175
16175
17185
18186
19186
20186
21186
22196
23197
24197
25197
26197
27207
28208
29208
30208

How April really feels in Wŏnju

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.

Wŏnju 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 / -8°244.53.79.70.0
Feb / -5°334.62.910.60.2
Mar10° / -0°547.82.811.72.6
Apr17° / 888.10.212.95.7
May22° / 11°10290146.9
Jun26° / 16°1299.4014.56.6
Jul28° / 20°28617.4014.35.0
Aug28° / 21°22815.9013.45.1
Sep24° / 15°1318.7012.36.9
Oct19° / 585.80116.7
Nov11° / 477.20.7102.9
Dec / -5°285.53.19.50.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15248
25248
35248
45248
55248
65347
75347
85347
95347
105347
115347
125248
135248
145248
155248
165248
175248
185248
195248
205248
215248
225248
235347
245347
255248
265248
275347
285347
295347
305347

Chance of precipitation in April

Any precipitationSnow

Wŏnju gets around 88 mm of rain and snow over 8.1 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 27% and peaks near 28% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202530
Rain chance (%)Snow chance (%)
1274
2273
3273
4273
5272
6272
7272
8272
9261
10261
11261
12271
13271
14271
15271
16271
17271
18271
19270
20270
21270
22270
23280
24280
25280
26280
27280
28280
29280
30280

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 (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
910000
1010000
119910
129910
139910
149910
159910
169910
179910
189910
199820
209820
219721
229721
239631
249631
259541
269541
279541
289451
299451
309361

Wind in April

Winds average 9 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:22 AM to 5:41 AM, and sunset from 6:44 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:226:44
212.46:216:45
312.46:196:45
412.56:186:46
512.56:166:47
612.66:146:48
712.66:136:49
812.66:116:50
912.76:106:51
1012.76:086:52
1112.86:076:53
1212.86:056:54
1312.86:046:54
1412.96:036:55
1512.96:016:56
1613.06:006:57
1713.05:586:58
1813.05:576:59
1913.15:557:00
2013.15:547:01
2113.25:537:02
2213.25:517:03
2313.25:507:04
2413.35:497:05
2513.35:477:05
2613.35:467:06
2713.45:457:07
2813.45:447:08
2913.45:427:09
3013.55:417:10

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.39 kWh/m².

For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 5.77 kWh/m² in May across the year — April's 5.39 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Wŏnju

In seasonPeak

None of Wŏnju's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Wŏnju's rainy season runs June–September, when most of the year's rain falls.

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

Is April a good time to visit Wŏnju?

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

5.7
Sightseeing
5th-best month of the year
1.6
Beach & pool
7th-best month of the year

April is a reasonable time to visit Wŏnju for sightseeing.

What to pack for Wŏnju in April

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

In April, Wŏnju sees daytime highs around 17°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 8 days see rain.

a warm layerrain gearsun protection

UV index in Wŏnju 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 Wŏnju peaks around August 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 14UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun7Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Wŏnju 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 Wŏnju is worst in March — around 57 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (August, 31 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorMar 1856 µg/m³Aug 1731 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb49Poor
Mar57Unhealthy
Apr51Poor
May46Poor
Jun41Poor
Jul33Moderate
Aug31Moderate
Sep32Moderate
Oct41Poor
Nov46Poor
Dec43Poor
Location & terrain

Where is Wŏnju?

Wŏnju sits at 37.4°N, 127.9°E, 133 m above sea level, in South Korea. The nearest listed city is Yeoju, 28 km away.

Hongch’ŏnPubalPyeongchangChungjuYangp'yŏngIcheon-siNeietsu

Topography around Wŏnju

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

Within 3 km, the terrain around Wŏnju has only modest variations in elevation — a maximum elevation change of 224 m around an average of 153 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,209 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,541 m.

The land around Wŏnju is covered by artificial surfaces (51%) and trees (33%) within 3 km, trees (78%) within 16 km, and trees (82%) within 80 km.

3 km
224 m
16 km
1,209 m
80 km
1,541 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Yeoju 28 km · Hongch’ŏn 38 km · Pubal 39 km · Pyeongchang 40 km · Chungju 42 km · Yangp'yŏng 43 km · Icheon-si 45 km · Neietsu 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 Wŏnju (37.3514°, 127.9453°, elevation 133 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. 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).