Munsan in Fall

In fall (September, October and November), Munsan sees average daytime highs around 19°C and overnight lows near 9°C, with 218 mm of precipitation over about 20 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.

Over the season highs ease from about 27°C in early September to 7°C by late November. The sky is clear or mostly clear about 46% of the time across fall, and the air most often feels dry.

Fall is Munsan's best season of the year to visit on our travel score. For the whole year in context, see Munsan's year-round climate.

Avg daytime high
19°C
2nd-warmest season
Avg overnight low
9°C
Precipitation
218 mm
20 wet days
Avg wind
8 km/h
Travel score
5.8
best season of the year
Months
Sep · Oct · Nov

Temperature in Munsan in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 27°C in early September to 7°C by late November.

A typical fall day in Munsan reaches about 19°C and drops to 9°C overnight. The warmest of the three months is September, the coolest November.

-10°10°20°30°SepOctNov

How fall really feels in Munsan

Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 17 that feel at or below 0°C.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
17
wind chill below the day's low

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

Munsan weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -7°183.52.39.70.0
Feb / -5°233.91.710.50.3
Mar11° / 355.70.911.72.9
Apr17° / 667.20.1135.9
May23° / 13°9980147.2
Jun27° / 18°1259014.66.6
Jul28° / 22°31316.3014.44.9
Aug29° / 22°26414.9013.54.7
Sep26° / 17°1207.9012.37.0
Oct20° / 525.30117.1
Nov11° / 4770.3103.2
Dec / -5°224.81.69.40.1

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitationSnow

Munsan gets around 218 mm of rain and snow over 20 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%10%20%30%40%50%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 8 km/h across fall.

051015SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 54 min in early September to 9 h 36 min by late November. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 3.5 kWh/m².

012345SepOctNov
Planning a trip in fall

Hazard calendar for Munsan

In seasonPeak

In fall, Munsan overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.

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

Munsan's rainy season runs July–August, 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 fall a good time to visit Munsan?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

5.8
Sightseeing
1st-best month of the year
3.4
Beach & pool
2nd-best month of the year

fall is a reasonable time to visit Munsan for sightseeing.

What to pack for Munsan in Fall

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

In fall, Munsan sees daytime highs around 19°C and nights near 9°C. Pack a warm layer. Worth having: light clothes. About 20 days see rain.

a warm layerlight clothes

Sea temperature near Munsan in Fall

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

The sea at the nearest coast (about 44 km away) is warmest in August at about 24°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 7 to Oct 10 — about 3.2 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan5Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May13Bracing
Jun17Cool
Jul21Refreshing
Aug24Warm
Sep23Refreshing
Oct19Cool
Nov14Bracing
Dec9Bracing

UV index in Munsan in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages 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 Munsan peaks around August 16 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 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 highHighModerateLowAug 16UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7High
Jul7Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Munsan in Fall

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Munsan is worst in March — around 160 µg/m³ PM2.5 (very unhealthy), about 2.0× the cleanest month (August, 81 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyUnhealthyMar 13158 µg/m³Aug 1282 µg/m³
PM2.5 (µg/m³)Level
Jan145Unhealthy
Feb149Unhealthy
Mar160Very unhealthy
Apr127Unhealthy
May111Unhealthy
Jun98Unhealthy
Jul88Unhealthy
Aug81Unhealthy
Sep110Unhealthy
Oct132Unhealthy
Nov142Unhealthy
Dec133Unhealthy
Location & terrain

Where is Munsan?

Munsan sits at 37.9°N, 126.8°E, 21 m above sea level, in South Korea. The nearest listed city is Goyang-si, 23 km away.

SeoulBucheon-si

Topography around Munsan

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

Within 3 km, the terrain around Munsan has only modest variations in elevation — a maximum elevation change of 205 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,427 m.

The land around Munsan is covered by trees (36%), artificial surfaces (24%) and cropland (21%) within 3 km, trees (48%) and cropland (24%) within 16 km, and trees (46%) and cropland (20%) within 80 km.

3 km
205 m
16 km
480 m
80 km
1,427 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Fall weather nearby: Goyang-si 23 km · Kaesŏng 24 km · Yangju 24 km · Uijeongbu-si 27 km · Gimpo-si 27 km · Ganghwa-gun 29 km · Seoul 37 km · Bucheon-si 40 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 Munsan (37.8594°, 126.785°, 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.