Tangjin weather in May

In May, Tangjin sees average daytime highs of 21°C and overnight lows near 14°C, with 82 mm of rain across 7.1 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 42% 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 Tangjin's 5th-clearest and 7th-windiest month. For the whole year in context, see Tangjin's year-round climate.

Daytime high
21°
5th warmest
Overnight low
14°
8th coldest
Rainfall
82 mm
7.1 wet days
Daylight
14 hours
5:31 AM – 7:29 PM
Cloud cover
51%
5th clearest
Wind
11 km/h
7th windiest
Solar energy
5.88 kWh/m²
Travel score
6.9
out of 10

Tangjin is city in Chungcheongnam-do, South Korea.

Density
49/km²
people per km²

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 19°C in the first days to 22°C by the end.

A typical May day in Tangjin reaches about 21°C in the afternoon and slips back to 14°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
11811
21912
31912
41912
51912
61912
71913
81913
92013
102013
112013
122013
132013
142014
152014
162014
172114
182114
192114
202115
212115
222115
232215
242215
252215
262216
272216
282216
292216
302316
312316

How May really feels in Tangjin

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.

Tangjin 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 / -4°214.22.89.80.0
Feb / -2°2641.510.60.1
Mar / 385.80.911.72.0
Apr15° / 666.9012.95.1
May21° / 14°827.1013.96.9
Jun24° / 19°1167.5014.57.1
Jul27° / 23°24814.7014.35.5
Aug28° / 24°22013.9013.45.4
Sep25° / 19°1247.4012.37.2
Oct19° / 13°565.40117.0
Nov12° / 487.20.4103.5
Dec / -1°245.72.69.50.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25545
35545
45446
55446
65347
75347
85347
95347
105347
115446
125446
135446
145545
155545
165644
175644
185743
195743
205743
215842
225842
235842
245842
255743
265743
275743
285743
295644
305545
315446

Chance of precipitation in May

Any precipitation

Tangjin gets around 82 mm of rain over 7.1 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 24% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
425
525
625
725
825
925
1025
1125
1225
1325
1425
1525
1625
1725
1824
1924
2024
2123
2223
2323
2422
2522
2621
2721
2820
2920
3020
3120

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 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1861220
2851320
3841420
4841420
5831520
6811630
7801730
8791830
9781930
10772030
11762130
12742330
13722440
14712540
15682750
16672850
17643060
18613270
19573490
205535100
215237110
224939120
234640141
244242151
253943171
263645191
273345211
282946241
292646261
302346292
312046322

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 5:46 AM to 5:21 AM, and sunset from 7:15 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:467:15
213.55:457:16
313.65:447:17
413.65:427:18
513.65:417:19
613.75:407:20
713.75:397:21
813.75:387:22
913.85:377:23
1013.85:367:23
1113.85:357:24
1213.85:347:25
1313.95:337:26
1413.95:327:27
1513.95:327:28
1614.05:317:29
1714.05:307:30
1814.05:297:30
1914.05:287:31
2014.15:287:32
2114.15:277:33
2214.15:267:34
2314.15:267:34
2414.25:257:35
2514.25:247:36
2614.25:247:37
2714.25:237:38
2814.35:237:38
2914.35:227:39
3014.35:227:40
3114.35:217:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.88 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 5.88 kWh/m² in May across the year — May's 5.88 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
216.0Bright
226.0Bright
236.0Intense
246.0Intense
256.0Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Hazard calendar for Tangjin

In seasonPeak

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

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

Tangjin'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 Tangjin?

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

6.9
Sightseeing
4th-best month of the year
3.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Tangjin for sightseeing.

What to pack for Tangjin in May

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

In May, Tangjin sees daytime highs around 21°C and nights near 14°C. Worth packing: sun protection. About 7 days see rain.

sun protection

Sea temperature near Tangjin 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 26 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 Tangjin 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 Tangjin peaks around July 24 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 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 24UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Tangjin 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 Tangjin is worst in March — around 92 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (July, 46 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 1391 µg/m³Jul 2246 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb85Unhealthy
Mar92Unhealthy
Apr75Unhealthy
May62Unhealthy
Jun57Unhealthy
Jul46Poor
Aug47Poor
Sep61Unhealthy
Oct74Unhealthy
Nov79Unhealthy
Dec73Unhealthy
Location & terrain

Where is Tangjin?

Tangjin sits at 36.9°N, 126.6°E, 20 m above sea level, in South Korea. The nearest listed city is Taesal-li, 18 km away.

AsanHwaseong-siPyeongtaekSeonghwan

Topography around Tangjin

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

Within 3 km, the terrain around Tangjin has only modest variations in elevation — a maximum elevation change of 129 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 446 m; within 80 km, large variations in elevation — a maximum elevation change of 800 m.

The land around Tangjin is covered by trees (40%), cropland (30%) and artificial surfaces (21%) within 3 km, cropland (39%) and trees (37%) within 16 km, and water (40%) and trees (31%) within 80 km.

3 km
129 m
16 km
446 m
80 km
800 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Taesal-li 18 km · Seosan 20 km · Yesan 31 km · Hongseong 33 km · Asan 36 km · Hwaseong-si 39 km · Pyeongtaek 42 km · Seonghwan 45 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 Tangjin (36.8944°, 126.6297°, elevation 20 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).