Anseong weather in May

In May, Anseong sees average daytime highs of 24°C and overnight lows near 12°C, with 91 mm of rain across 7.7 wet days and about 14 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 26°C by the end. The sky is clear or mostly clear about 40% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Anseong's 8th-clearest and 4th-windiest month. For the whole year in context, see Anseong's year-round climate.

Daytime high
24°
5th warmest
Overnight low
12°
8th coldest
Rainfall
91 mm
7.7 wet days
Daylight
14 hours
5:28 AM – 7:26 PM
Cloud cover
53%
8th clearest
Wind
9 km/h
4th windiest
Solar energy
5.85 kWh/m²
Travel score
7.2
out of 10

Anseong is city in South Korea.

Density
125/km²
people per km²
Founded
1913

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 26°C by the end.

A typical May day in Anseong reaches about 24°C in the afternoon and slips back to 12°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 28°C. Set against its neighbours, May runs about 6°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12210
22210
32210
42210
52210
62211
72311
82311
92311
102311
112312
122312
132312
142312
152412
162412
172412
182413
192413
202413
212513
222513
232513
242514
252514
262514
272614
282614
292615
302615
312615

How May really feels in Anseong

Once humidity and wind are folded in, May 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

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

Anseong weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -6°234.22.59.70.0
Feb / -4°294.21.710.60.4
Mar11° / 456.41.411.73.2
Apr18° / 767.30.112.96.3
May24° / 12°917.70147.2
Jun28° / 18°1278.5014.56.5
Jul29° / 22°27816.7014.34.5
Aug30° / 22°24715.3013.44.6
Sep26° / 17°1328.1012.37.0
Oct20° / 585.30117.2
Nov12° / 476.80.3103.6
Dec / -4°245.21.99.50.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35248
45248
55149
65149
75050
85050
95050
105050
114951
125050
135050
145050
155248
165248
175347
185347
195446
205545
215545
225545
235644
245545
255545
265545
275446
285347
295347
305149
315149

Chance of precipitation in May

Any precipitation

Anseong gets around 91 mm of rain over 7.7 wet days in May. 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 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
327
427
527
627
727
827
927
1027
1128
1228
1328
1428
1527
1627
1727
1827
1926
2026
2125
2224
2324
2423
2523
2622
2722
2821
2921
3021
3121

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
190820
289920
389920
4881020
5871120
6871120
7851230
8851230
9841330
10831430
11831430
12821530
13811630
14801730
15791830
16781930
17762040
18752140
19732250
20722350
21702460
22692560
23672670
24652780
25632890
266029101
275830111
285631121
295431141
305232151
314933171

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:43 AM to 5:18 AM, and sunset from 7:13 PM to 7:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:437:13
213.55:427:14
313.65:417:15
413.65:407:16
513.65:397:17
613.75:387:18
713.75:367:18
813.75:357:19
913.85:347:20
1013.85:337:21
1113.85:327:22
1213.95:317:23
1313.95:317:24
1413.95:307:25
1513.95:297:26
1614.05:287:26
1714.05:277:27
1814.05:267:28
1914.15:267:29
2014.15:257:30
2114.15:247:31
2214.15:237:31
2314.25:237:32
2414.25:227:33
2514.25:227:34
2614.25:217:35
2714.25:207:35
2814.35:207:36
2914.35:197:37
3014.35:197:37
3114.35:187:38

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.85 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 5.85 kWh/m² in May across the year — May's 5.85 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
236.0Bright
246.0Bright
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in May

Hazard calendar for Anseong

In seasonPeak

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

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

Anseong'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 May a good time to visit Anseong?

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

7.2
Sightseeing
1st-best month of the year
6.0
Beach & pool
4th-best month of the year

May is one of the better times to visit Anseong for general sightseeing.

What to pack for Anseong in May

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

In May, Anseong sees daytime highs around 24°C and nights near 12°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Anseong in May

The nearest coast averages about 12°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 59 km away) is warmest in August at about 23°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 12 to Oct 14 — 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
Jun16Cool
Jul21Refreshing
Aug23Refreshing
Sep23Refreshing
Oct20Cool
Nov15Cool
Dec10Bracing

UV index in Anseong in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Anseong peaks around August 11 at about 8 (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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 11UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Anseong in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Anseong is worst in March — around 80 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (July, 45 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 1479 µg/m³Jul 2345 µg/m³
PM2.5 (µg/m³)Level
Jan69Unhealthy
Feb72Unhealthy
Mar80Unhealthy
Apr65Unhealthy
May58Unhealthy
Jun54Poor
Jul45Poor
Aug45Poor
Sep56Unhealthy
Oct67Unhealthy
Nov72Unhealthy
Dec65Unhealthy
Location & terrain

Where is Anseong?

Anseong sits at 37.0°N, 127.3°E, 37 m above sea level, in South Korea. The nearest listed city is Pyeongtaek, 16 km away.

AsanJungpyong

Topography around Anseong

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

Within 3 km, the terrain around Anseong has significant variations in elevation — a maximum elevation change of 253 m around an average of 52 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 560 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,236 m.

The land around Anseong is covered by cropland (40%), artificial surfaces (28%) and trees (27%) within 3 km, trees (55%) and cropland (25%) within 16 km, and trees (59%) within 80 km.

3 km
253 m
16 km
560 m
80 km
1,236 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Pyeongtaek 16 km · Seonghwan 16 km · Chinch'ŏn 23 km · Osan 24 km · Cheonan 25 km · Icheon-si 34 km · Asan 35 km · Jungpyong 37 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 Anseong (37.0108°, 127.2703°, elevation 37 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).