Seosan weather in February

In February, Seosan sees average daytime highs of 5°C and overnight lows near -2°C, with 27 mm of precipitation across 4.2 wet days and about 10.6 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 3°C in the first days to 7°C by the end. The sky is clear or mostly clear about 35% of the time in February, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of February to 11 h 06 min by month's end. Set against the rest of the year, February is Seosan's 7th-clearest and 3rd-windiest month. For the whole year in context, see Seosan's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
2nd coldest
Precipitation
27 mm
4.2 wet days
Daylight
10 h 36 min
7:31 AM – 6:07 PM
Cloud cover
56%
7th clearest
Wind
14 km/h
3rd windiest
Solar energy
3.52 kWh/m²
Travel score
0.2
out of 10

Seosan is city in South Korea.

Density
100/km²
people per km²

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

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 3°C in the first days to 7°C by the end.

A typical February day in Seosan reaches about 5°C in the afternoon and slips back to -2°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 9°C. Set against its neighbours, February runs about 2°C warmer than January and about 5°C cooler than March.

-10°-5°10°15°151015202528
Avg high (°C)Avg low (°C)
13-3
23-3
33-3
43-3
53-3
64-3
74-2
84-2
94-2
104-2
114-2
124-2
134-2
145-2
155-2
165-1
175-1
185-1
195-1
206-1
216-1
226-1
236-1
2460
2560
2670
2770
2870

How February really feels in Seosan

Once humidity and wind are folded in, February averages 0 days that feel above 32°C and 28 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
28
wind chill below the day's low

The story in February is cold — wind chill drags the overnight "feels like" below the raw low.

Seosan weather by month

How February compares with the rest of the year at a glance. February is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°224.949.80.0
Feb / -2°274.21.710.60.2
Mar10° / 415.60.911.72.4
Apr16° / 696.8012.95.3
May21° / 13°797013.97.0
Jun25° / 18°1167.7014.57.1
Jul27° / 22°24514.8014.35.4
Aug29° / 23°22513.7013.45.3
Sep25° / 18°1337.5012.27.2
Oct20° / 12°555.30117.1
Nov12° / 497.20.4103.6
Dec / -0°266.13.49.50.4

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 16% of February, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
14852
24852
34852
44951
54951
64951
74951
84951
95050
104951
114951
125050
135149
145149
155248
165248
175248
185248
195248
205248
215248
225248
235248
245347
255347
265446
275446
285446

Chance of precipitation in February

Any precipitationSnow

Seosan gets around 27 mm of rain and snow over 4.2 wet days in February. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 15% and peaks near 19% on the wettest days, and about 2 days bring snow. The odds climb toward the end of the month.

0%10%20%30%151015202528
Rain chance (%)Snow chance (%)
11210
21210
3129
4139
5139
6138
7148
8148
9148
10157
11157
12157
13156
14166
15166
16165
17165
18165
19165
20165
21174
22174
23174
24185
25185
26195
27195
28195

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, February lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202528
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100

Wind in February

Winds average 14 km/h in February.

Across February, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202528
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2513light breeze
2613light breeze
2714light breeze
2814light breeze

Sunrise & sunset in February

DaylightNight

Daylight runs from about 10 h 06 min at the start of February to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over February. Sunrise moves from 7:43 AM to 7:15 AM, and sunset from 5:52 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
110.17:435:52
210.27:435:53
310.27:425:54
410.27:415:55
510.37:405:56
610.37:395:57
710.37:395:58
810.47:385:59
910.47:376:00
1010.47:366:02
1110.57:356:03
1210.57:346:04
1310.57:336:05
1410.67:326:06
1510.67:316:07
1610.67:306:08
1710.77:296:09
1810.77:276:10
1910.77:266:11
2010.87:256:12
2110.87:246:13
2210.97:236:14
2310.97:226:15
2410.97:206:16
2511.07:196:17
2611.07:186:18
2711.07:176:19
2811.17:156:20

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.52 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 5.95 kWh/m² in May across the year — February's 3.52 kWh/m² falls in the middle.

012345151015202528
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.2Moderate
73.2Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.4Moderate
123.4Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.6Moderate
173.6Moderate
183.7Moderate
193.7Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.9Moderate
243.9Moderate
254.0Moderate
264.0Bright
274.0Bright
284.1Bright
Planning a trip in February

Hazard calendar for Seosan

In seasonPeak

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

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

Seosan'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 February a good time to visit Seosan?

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

0.2
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

February is a weaker month for outdoor sightseeing in Seosan.

What to pack for Seosan in February

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

In February, Seosan sees daytime highs around 5°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat. About 4 days see rain.

a warm layera heavy coat

Sea temperature near Seosan in February

The nearest coast averages about 5°C in February — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 19 km away) is warmest in August at about 25°C and coldest in February near 5°C.

It's comfortable for a long swim from Jul 4 to Oct 7 — about 3.2 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan7Bracing
Feb5Bracing
Mar6Bracing
Apr8Bracing
May12Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Seosan in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Seosan peaks around July 20 at about 7 (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 20UV 7Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug7Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Seosan in February

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Seosan 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 Seosan?

Seosan sits at 36.8°N, 126.5°E, 33 m above sea level, in South Korea. The nearest listed city is Tangjin, 20 km away.

YesanAsanBoryeongHwaseong-siPyeongtaek

Topography around Seosan

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

Within 3 km, the terrain around Seosan has only modest variations in elevation — a maximum elevation change of 192 m around an average of 43 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 643 m; within 80 km, large variations in elevation — a maximum elevation change of 769 m.

The land around Seosan is covered by cropland (33%), trees (30%) and artificial surfaces (30%) within 3 km, cropland (39%) and trees (38%) within 16 km, and water (53%) and trees (25%) within 80 km.

3 km
192 m
16 km
643 m
80 km
769 m
treesgrasslandcroplandartificial surfaceswaterwetland
February weather nearby: Tangjin 20 km · Taesal-li 21 km · Hongseong 28 km · Yesan 37 km · Asan 49 km · Boryeong 50 km · Hwaseong-si 57 km · Pyeongtaek 61 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 Seosan (36.7817°, 126.4522°, elevation 33 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).