Muan weather in October

In October, Muan sees average daytime highs of 21°C and overnight lows near 13°C, with 52 mm of rain across 4.3 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 19°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 42 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Muan's 1st-clearest and 9th-windiest month. For the whole year in context, see Muan's year-round climate.

Daytime high
21°
6th warmest
Overnight low
13°
7th coldest
Rainfall
52 mm
4.3 wet days
Daylight
11 h 06 min
6:46 AM – 5:52 PM
Cloud cover
44%
1st clearest
Wind
12 km/h
9th windiest
Solar energy
3.89 kWh/m²
Travel score
7.7
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 19°C by the end.

A typical October day in Muan reaches about 21°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°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)
12416
22415
32415
42415
52315
62315
72314
82314
92314
102314
112213
122213
132213
142213
152213
162212
172112
182112
192112
202112
212111
222011
232011
242011
252011
262011
271910
281910
291910
301910
311810

How October really feels in Muan

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.

Muan weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°264.629.90.4
Feb / 345.10.910.71.3
Mar12° / 5970.411.73.6
Apr18° / 817.5012.96.1
May23° / 13°927.9013.87.1
Jun26° / 18°1569.4014.36.4
Jul29° / 23°21915.2014.14.8
Aug30° / 24°20614.6013.34.4
Sep27° / 19°1478.9012.26.7
Oct21° / 13°524.3011.17.7
Nov15° / 456010.25.0
Dec / 264.51.49.71.7

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 14% of October, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35743
45842
55941
66040
76139
86238
96337
106436
116535
126535
136535
146634
156634
166634
176733
186634
196634
206634
216634
226634
236634
246733
256733
266733
276733
286733
296733
306733
316733

Chance of precipitation in October

Any precipitation

Muan gets around 52 mm of rain over 4.3 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 14% and peaks near 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
120
220
319
418
518
617
716
815
915
1014
1113
1213
1312
1412
1512
1612
1712
1812
1912
2012
2112
2212
2312
2413
2513
2613
2714
2814
2915
3015
3116

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1352923111
2382822101
341282191
444271981
547261881
650261771
753251561
856241451
959231350
1063221140
1165221030
126721930
136820930
147119820
157219720
167418620
177617610
187717510
197816510
208015410
218114410
228413300
238413300
248512300
258611300
268710300
27899200
28899200
29908200
30917200
31917200

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 42 min at the start of October to 10 h 36 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 6:13 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:336:13
211.66:346:11
311.66:356:10
411.56:366:08
511.56:376:07
611.56:386:06
711.46:386:04
811.46:396:03
911.46:406:01
1011.36:416:00
1111.36:425:59
1211.26:435:57
1311.26:435:56
1411.26:445:55
1511.16:455:53
1611.16:465:52
1711.16:475:51
1811.06:485:50
1911.06:495:48
2011.06:505:47
2110.96:505:46
2210.96:515:45
2310.96:525:44
2410.86:535:43
2510.86:545:42
2610.86:555:41
2710.76:565:39
2810.76:575:38
2910.76:585:37
3010.66:595:36
3110.67:005:35

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.89 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 5.91 kWh/m² in May across the year — October's 3.89 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.0Bright
124.0Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.4Moderate
303.4Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Muan

In seasonPeak

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

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

Muan'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 Muan?

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

7.7
Sightseeing
1st-best month of the year
4.9
Beach & pool
6th-best month of the year

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

What to pack for Muan in October

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

In October, Muan sees daytime highs around 21°C and nights near 13°C. Little to plan around — just the basics. About 4 days see rain.

Sea temperature near Muan 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 36 km away) is warmest in August at about 25°C and coldest in February near 7°C.

It's comfortable for a long swim from Jun 28 to Oct 9 — about 3.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar7Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Muan in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Muan peaks around June 21 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highHighModerateJun 21UV 8Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Muan 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 Muan is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (August, 28 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorModerateMar 1960 µg/m³Aug 1129 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb48Poor
Mar61Unhealthy
Apr54Poor
May45Poor
Jun39Poor
Jul29Moderate
Aug28Moderate
Sep33Moderate
Oct35Moderate
Nov38Poor
Dec34Moderate
Location & terrain

Where is Muan?

Muan sits at 35.0°N, 126.5°E, 21 m above sea level, in South Korea. The nearest listed city is Mokpo, 21 km away.

MasanSinanGwangjuJangseong

Topography around Muan

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

Within 3 km, the terrain around Muan has significant variations in elevation — a maximum elevation change of 284 m around an average of 55 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 345 m; within 80 km, large variations in elevation — a maximum elevation change of 1,171 m.

The land around Muan is covered by trees (52%) and cropland (31%) within 3 km, cropland (36%), trees (33%) and water (20%) within 16 km, and water (45%) and trees (34%) within 80 km.

3 km
284 m
16 km
345 m
80 km
1,171 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Mokpo 21 km · Naju 22 km · Yeongam 29 km · Yeonggwang 32 km · Masan 36 km · Sinan 38 km · Gwangju 44 km · Jangseong 44 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 Muan (34.9901°, 126.479°, elevation 21 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).