Gunsan weather in October

In October, Gunsan sees average daytime highs of 20°C and overnight lows near 13°C, with 58 mm of rain across 4.9 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 17°C by the end. The sky is clear or mostly clear about 50% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Gunsan's 1st-clearest and 9th-windiest month. For the whole year in context, see Gunsan's year-round climate.

Daytime high
20°
6th warmest
Overnight low
13°
7th coldest
Rainfall
58 mm
4.9 wet days
Daylight
11 h 06 min
6:46 AM – 5:50 PM
Cloud cover
43%
1st clearest
Wind
11 km/h
9th windiest
Solar energy
3.79 kWh/m²
Travel score
7.2
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 17°C by the end.

A typical October day in Gunsan reaches about 20°C in the afternoon and slips back to 13°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 23°C. Set against its neighbours, October runs about 5°C cooler than September and about 7°C warmer than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12316
22316
32216
42216
52216
62215
72215
82115
92115
102115
112114
122114
132114
142014
152013
162013
172013
182013
191913
201912
211912
221912
231812
241812
251811
261811
271811
281711
291711
301710
311710

How October really feels in Gunsan

Once humidity and wind are folded in, October 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

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

Gunsan weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°245.12.79.80.0
Feb / -1°314.51.310.60.4
Mar10° / 486.70.511.72.5
Apr16° / 817.2012.95.3
May21° / 14°877.2013.96.9
Jun25° / 19°1268014.47.0
Jul28° / 23°25514.4014.25.4
Aug29° / 24°22514013.45.1
Sep25° / 20°1448.3012.27.0
Oct20° / 13°584.9011.17.2
Nov13° / 446.50.110.14.1
Dec / 275.71.99.60.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26139
36139
46139
56139
66238
76238
86337
96337
106436
116436
126535
136535
146634
156634
166634
176733
186733
196733
206832
216832
226832
236931
247030
257030
267030
277030
287030
297030
307030
316931

Chance of precipitation in October

Any precipitation

Gunsan gets around 58 mm of rain over 4.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 16% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
218
318
418
517
617
717
816
916
1015
1115
1214
1314
1414
1514
1614
1714
1814
1914
2014
2114
2214
2315
2415
2516
2616
2717
2817
2917
3018
3119

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 69% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1343124101
236312390
339302280
442292170
545291960
648281860
751271750
855261540
956261440
1060251230
1162241130
1265231020
136722920
146921820
157120810
167319710
177518610
187717510
197717510
208016400
218115400
228314300
238413300
248612200
258711200
268810200
27899200
28918100
29918100
30927100
31936100

Wind in October

Winds average 11 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 11 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
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:33 AM to 7:00 AM, and sunset from 6:11 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:336:11
211.66:346:10
311.66:356:08
411.56:356:07
511.56:366:05
611.46:376:04
711.46:386:03
811.46:396:01
911.36:406:00
1011.36:415:58
1111.36:425:57
1211.26:425:56
1311.26:435:54
1411.16:445:53
1511.16:455:52
1611.16:465:50
1711.06:475:49
1811.06:485:48
1911.06:495:46
2010.96:505:45
2110.96:515:44
2210.96:525:43
2310.86:535:42
2410.86:545:40
2510.76:555:39
2610.76:565:38
2710.76:575:37
2810.66:585:36
2910.66:595:35
3010.66:595:34
3110.57:005:33

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.79 kWh/m².

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 5.87 kWh/m² in May across the year — October's 3.79 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.0Bright
74.0Bright
84.0Bright
94.0Bright
104.0Moderate
114.0Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.3Moderate
303.3Moderate
313.2Moderate
Planning a trip in October

Hazard calendar for Gunsan

In seasonPeak

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

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

Gunsan'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 October a good time to visit Gunsan?

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

7.2
Sightseeing
1st-best month of the year
3.7
Beach & pool
6th-best month of the year

October is one of the better times to visit Gunsan for general sightseeing.

What to pack for Gunsan in October

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

In October, Gunsan sees daytime highs around 20°C and nights near 13°C. Little to plan around — just the basics. About 5 days see rain.

Sea temperature near Gunsan in October

The nearest coast averages about 19°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in August at about 26°C and coldest in February near 6°C.

It's comfortable for a long swim from Jun 25 to Oct 10 — about 3.6 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan7Bracing
Feb6Bracing
Mar6Bracing
Apr9Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov15Bracing
Dec10Bracing

UV index in Gunsan in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gunsan peaks around September 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateSep 11UV 8Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr6High
May7Very high
Jun7Very high
Jul7Very high
Aug7Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Gunsan in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Gunsan is worst in March — around 64 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (July, 32 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1663 µg/m³Jul 2133 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb56Unhealthy
Mar64Unhealthy
Apr55Poor
May46Poor
Jun42Poor
Jul32Moderate
Aug35Moderate
Sep43Poor
Oct48Poor
Nov51Poor
Dec48Poor
Location & terrain

Where is Gunsan?

Gunsan sits at 36.0°N, 126.7°E, 14 m above sea level, in South Korea. The nearest listed city is Iksan, 22 km away.

BuyeoYŏnmuNonsanWanju

Topography around Gunsan

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

Within 3 km, the terrain around Gunsan has only modest variations in elevation — a maximum elevation change of 124 m around an average of 12 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 326 m; within 80 km, large variations in elevation — a maximum elevation change of 1,137 m.

The land around Gunsan is covered by artificial surfaces (50%) and water (24%) within 3 km, cropland (36%) and water (24%) within 16 km, and trees (39%) and water (37%) within 80 km.

3 km
124 m
16 km
326 m
80 km
1,137 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
October weather nearby: Iksan 22 km · Kimje 25 km · Buan 28 km · Namsa 31 km · Buyeo 37 km · Yŏnmu 39 km · Nonsan 42 km · Wanju 42 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 Gunsan (35.9786°, 126.7114°, elevation 14 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).