Changwon weather in October

In October, Changwon sees average daytime highs of 22°C and overnight lows near 12°C, with 68 mm of rain across 4.6 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 49% 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 36 min by month's end. Set against the rest of the year, October is Changwon's 4th-clearest and 11th-windiest month. For the whole year in context, see Changwon's year-round climate.

Daytime high
22°
6th warmest
Overnight low
12°
7th coldest
Rainfall
68 mm
4.6 wet days
Daylight
11 h 06 min
6:37 AM – 5:43 PM
Cloud cover
45%
4th clearest
Wind
10 km/h
11th windiest
Solar energy
3.85 kWh/m²
Travel score
7.6
out of 10

Changwon is specific city in South Gyeongsang, South Korea.

Density
1,393/km²
people per km²
Founded
1408

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

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 Changwon reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°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 6°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12415
22415
32415
42414
52314
62314
72314
82314
92313
102313
112313
122213
132212
142212
152212
162212
172212
182111
192111
202111
212111
222110
232010
242010
252010
26209
27199
28199
29199
30199
31198

How October really feels in Changwon

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.

Changwon 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 / -2°283.90.69.91.1
Feb / -1°384.40.510.72.2
Mar14° / 757.20.511.74.3
Apr19° / 1077.9012.96.4
May23° / 13°1148.1013.87.1
Jun26° / 18°1619.4014.36.5
Jul28° / 22°24614.8014.15.0
Aug29° / 23°22014.6013.34.7
Sep26° / 18°1629.6012.26.7
Oct22° / 12°684.6011.17.6
Nov15° / 474.90.110.15.4
Dec / -0°263.50.39.72.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% 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 (%)
15248
25347
35446
45545
55644
65842
75941
86040
96238
106238
116436
126436
136535
146535
156535
166634
176634
186634
196733
206733
216832
226832
236931
246832
256931
266931
277030
287030
297129
307129
317129

Chance of precipitation in October

Any precipitation

Changwon gets around 68 mm of rain over 4.6 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 20% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
120
220
319
419
518
618
717
816
916
1015
1115
1215
1314
1414
1514
1615
1715
1815
1915
2015
2115
2214
2314
2414
2514
2614
2714
2814
2914
3014
3115

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
140292083
243281982
346271872
449261672
552251562
655241461
759221351
861211251
963201151
1066191041
116918940
127217830
137317730
147516630
157616620
167716520
177815520
188015410
198015410
208214310
218313310
228413210
238512210
248711200
258711200
268810200
27899200
28908200
29918100
30927100
31927100

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 10 km/h on the calmest days to 10 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
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 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 60 minutes over October. Sunrise moves from 6:25 AM to 6:51 AM, and sunset from 6:04 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:256:04
211.66:266:02
311.66:266:01
411.56:275:59
511.56:285:58
611.56:295:57
711.46:305:55
811.46:315:54
911.46:315:52
1011.36:325:51
1111.36:335:50
1211.26:345:48
1311.26:355:47
1411.26:365:46
1511.16:375:44
1611.16:375:43
1711.16:385:42
1811.06:395:41
1911.06:405:39
2011.06:415:38
2110.96:425:37
2210.96:435:36
2310.86:445:35
2410.86:455:34
2510.86:465:32
2610.76:475:31
2710.76:485:30
2810.76:495:29
2910.66:495:28
3010.66:505:27
3110.66:515:26

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.85 kWh/m².

For context, solar energy here swings from a low near 2.68 kWh/m² to a high of 5.85 kWh/m² in May across the year — October's 3.85 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Bright
54.0Bright
64.0Moderate
74.0Moderate
84.0Moderate
94.0Moderate
104.0Moderate
114.0Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in October

Hazard calendar for Changwon

In seasonPeak

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

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

Changwon's rainy season runs May–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 Changwon?

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

7.6
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 Changwon for general sightseeing.

What to pack for Changwon in October

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

In October, Changwon sees daytime highs around 22°C and nights near 12°C. Little to plan around — just the basics. About 5 days see rain.

Sea temperature near Changwon in October

The nearest coast averages about 22°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 42 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 17 to Nov 7 — about 4.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Changwon 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 Changwon peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highModerateAug 18UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep9Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Changwon 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 Changwon is worst in March — around 68 µg/m³ PM2.5 (unhealthy), about 1.6× the cleanest month (August, 42 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorPoorMar 2168 µg/m³Aug 1942 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb58Unhealthy
Mar68Unhealthy
Apr66Unhealthy
May65Unhealthy
Jun55Poor
Jul46Poor
Aug42Poor
Sep44Poor
Oct50Poor
Nov58Unhealthy
Dec48Poor
Location & terrain

Where is Changwon?

Changwon sits at 35.2°N, 128.7°E, 27 m above sea level, in South Korea. The nearest listed city is Naesŏ, 15 km away.

YangsanBusanChangnyeongSinhyeonKyosai

Topography around Changwon

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

Within 3 km, the terrain around Changwon has significant variations in elevation — a maximum elevation change of 505 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 789 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,204 m.

The land around Changwon is covered by artificial surfaces (60%) and trees (35%) within 3 km, trees (54%) and artificial surfaces (20%) within 16 km, and trees (47%) and water (37%) within 80 km.

3 km
505 m
16 km
789 m
80 km
1,204 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Naesŏ 15 km · Kimhae 18 km · Miryang 30 km · Yangsan 34 km · Busan 35 km · Changnyeong 39 km · Sinhyeon 39 km · Kyosai 43 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 Changwon (35.2281°, 128.6811°, elevation 27 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).