Taesal-li in Fall

In fall (September, October and November), Taesal-li sees average daytime highs around 18°C and overnight lows near 14°C, with 240 mm of precipitation over about 21 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.

Over the season highs ease from about 25°C in early September to 9°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 Taesal-li's 2nd-best season to visit on our travel score. For the whole year in context, see Taesal-li's year-round climate.

Avg daytime high
18°C
2nd-warmest season
Avg overnight low
14°C
Precipitation
240 mm
21 wet days
Avg wind
14 km/h
Travel score
5.8
2nd-best season
Months
Sep · Oct · Nov

Temperature in Taesal-li in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 25°C in early September to 9°C by late November.

A typical fall day in Taesal-li reaches about 18°C and drops to 14°C overnight. The warmest of the three months is September, the coolest November.

10°20°30°SepOctNov

How fall really feels in Taesal-li

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

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

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

Taesal-li 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 / -2°245.23.99.80.0
Feb / -1°284.21.610.60.0
Mar / 405.70.911.71.1
Apr12° / 726.7012.93.6
May17° / 13°907.2013.95.9
Jun21° / 18°1197.4014.56.8
Jul25° / 22°25613.9014.36.1
Aug27° / 24°21812.4013.46.3
Sep24° / 20°1277.3012.37.3
Oct18° / 15°585.50116.7
Nov12° / 568.30.5103.3
Dec / 317.73.99.50.4

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

Taesal-li gets around 240 mm of rain and snow over 21 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 14 km/h across fall.

05101520SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 48 min in early September to 9 h 42 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 Taesal-li

In seasonPeak

In fall, Taesal-li overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Taesal-li sits in the Pacific typhoon belt; the season peaks July–October.

Taesal-li'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 fall a good time to visit Taesal-li?

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
2nd-best month of the year
2.8
Beach & pool
2nd-best month of the year

fall is a reasonable time to visit Taesal-li for sightseeing.

What to pack for Taesal-li in Fall

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

In fall, Taesal-li sees daytime highs around 18°C and nights near 14°C. Pack a warm layer. Worth having: light clothes and rain gear. About 21 days see rain.

a warm layerlight clothesrain gear

Sea temperature near Taesal-li 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 18 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 12 — 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
Jun17Cool
Jul21Refreshing
Aug23Refreshing
Sep23Refreshing
Oct20Cool
Nov15Cool
Dec10Bracing

UV index in Taesal-li 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 Taesal-li 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 Taesal-li 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 Taesal-li 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 Taesal-li?

Taesal-li sits at 37.0°N, 126.5°E, 13 m above sea level, in South Korea. The nearest listed city is Tangjin, 18 km away.

Hwaseong-siHongseongYesanAnsanAsanPyeongtaek

Topography around Taesal-li

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

Within 3 km, the terrain around Taesal-li has only modest variations in elevation — a maximum elevation change of 178 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 292 m; within 80 km, large variations in elevation — a maximum elevation change of 769 m.

The land around Taesal-li is covered by cropland (43%) and trees (29%) within 3 km, water (45%), trees (24%) and cropland (21%) within 16 km, and water (52%) and trees (24%) within 80 km.

3 km
178 m
16 km
292 m
80 km
769 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Fall weather nearby: Tangjin 18 km · Seosan 21 km · Hwaseong-si 41 km · Hongseong 45 km · Yesan 48 km · Ansan 51 km · Asan 53 km · Pyeongtaek 56 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 Taesal-li (36.9714°, 126.4542°, elevation 13 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.