Anyang-si weather in April

In April, Anyang-si sees average daytime highs of 18°C and overnight lows near 6°C, with 70 mm of rain across 7.3 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 15°C in the first days to 20°C by the end. The sky is clear or mostly clear about 42% 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 Anyang-si's 7th-clearest and 1st-windiest month. For the whole year in context, see Anyang-si's year-round climate.

Daytime high
18°
7th warmest
Overnight low
6th coldest
Rainfall
70 mm
7.3 wet days
Daylight
13 hours
6:04 AM – 7:01 PM
Cloud cover
52%
7th clearest
Wind
10 km/h
1st windiest
Solar energy
5.4 kWh/m²
Travel score
6.0
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 20°C by the end.

A typical April day in Anyang-si reaches about 18°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 12°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)
1143
2143
3153
4154
5154
6154
7164
8165
9165
10165
11175
12175
13176
14176
15186
16186
17187
18187
19187
20197
21197
22198
23198
24198
25208
26208
27209
28209
29209
30219

How April really feels in Anyang-si

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.

Anyang-si 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 / -7°203.62.29.70.0
Feb / -5°2541.810.60.3
Mar11° / 386.2111.72.9
Apr18° / 707.3012.96.0
May23° / 12°967.70147.2
Jun27° / 18°1268.8014.56.6
Jul28° / 22°31416.5014.34.8
Aug29° / 22°25815.2013.44.8
Sep26° / 17°1247.6012.37.1
Oct20° / 555.30117.1
Nov12° / 477.10.4103.3
Dec / -5°234.81.59.50.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% 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 45%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25644
35644
45545
55545
65545
75545
85545
95446
105545
115545
125545
135446
145446
155446
165446
175446
185446
195446
205545
215446
225446
235545
245446
255446
265545
275446
285446
295446
305545

Chance of precipitation in April

Any precipitation

Anyang-si gets around 70 mm of rain over 7.3 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 24% and peaks near 26% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
121
221
322
422
522
622
722
822
922
1023
1123
1223
1324
1424
1524
1625
1725
1825
1925
2025
2126
2226
2326
2426
2526
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 97% 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
89910
99910
109910
119910
129910
139910
149910
159820
169820
179820
189820
199820
209721
219631
229631
239541
249541
259451
269451
279262
289172
299172
309082

Wind in April

Winds average 10 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:26 AM to 5:45 AM, and sunset from 6:48 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:266:48
212.46:256:49
312.46:236:50
412.56:226:50
512.56:206:51
612.66:196:52
712.66:176:53
812.66:156:54
912.76:146:55
1012.76:126:56
1112.86:116:57
1212.86:106:58
1312.86:086:59
1412.96:077:00
1512.96:057:00
1613.06:047:01
1713.06:027:02
1813.06:017:03
1913.15:597:04
2013.15:587:05
2113.25:577:06
2213.25:557:07
2313.25:547:08
2413.35:537:09
2513.35:517:10
2613.35:507:11
2713.45:497:11
2813.45:487:12
2913.45:467:13
3013.55:457:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.4 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.79 kWh/m² in May across the year — April's 5.4 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
125.4Bright
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 Anyang-si

In seasonPeak

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

Anyang-si sits in the Pacific typhoon belt; the season peaks July–October.

Anyang-si'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 Anyang-si?

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

6.0
Sightseeing
5th-best month of the year
1.8
Beach & pool
7th-best month of the year

April is a reasonable time to visit Anyang-si for sightseeing.

What to pack for Anyang-si in April

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

In April, Anyang-si sees daytime highs around 18°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 Anyang-si in April

The nearest coast averages about 8°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 27 km away) is warmest in August at about 24°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 11 to Oct 13 — about 3.1 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun17Cool
Jul21Refreshing
Aug24Refreshing
Sep23Refreshing
Oct20Cool
Nov15Bracing
Dec10Bracing

UV index in Anyang-si 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 Anyang-si peaks around July 23 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 23UV 8Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Anyang-si 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 Anyang-si is worst in March — around 160 µg/m³ PM2.5 (very unhealthy), about 2.0× the cleanest month (August, 81 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyUnhealthyMar 13158 µg/m³Aug 1282 µg/m³
PM2.5 (µg/m³)Level
Jan145Unhealthy
Feb149Unhealthy
Mar160Very unhealthy
Apr127Unhealthy
May111Unhealthy
Jun98Unhealthy
Jul88Unhealthy
Aug81Unhealthy
Sep110Unhealthy
Oct132Unhealthy
Nov142Unhealthy
Dec133Unhealthy
Location & terrain

Where is Anyang-si?

Anyang-si sits at 37.4°N, 126.9°E, 52 m above sea level, in South Korea. The nearest listed city is Gunpo, 3.0 km away.

Topography around Anyang-si

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

Within 3 km, the terrain around Anyang-si has significant variations in elevation — a maximum elevation change of 454 m around an average of 88 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 604 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,232 m.

The land around Anyang-si is covered by trees (49%) and artificial surfaces (49%) within 3 km, trees (49%) and artificial surfaces (39%) within 16 km, and trees (44%) and water (22%) within 80 km.

3 km
454 m
16 km
604 m
80 km
1,232 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Gunpo 3.0 km · Uiwang 4.0 km · Siheungdong 7.0 km · Gwangmyeong 11 km · Ansan 12 km · Suwon 13 km · Bucheon-si 17 km · Seongnam-si 19 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 Anyang-si (37.3925°, 126.9269°, elevation 52 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).