Gwangju weather in October

In October, Gwangju sees average daytime highs of 21°C and overnight lows near 9°C, with 57 mm of rain across 5 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 23°C in the first days to 18°C by the end. The sky is clear or mostly clear about 48% 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 Gwangju's 1st-clearest and 9th-windiest month. For the whole year in context, see Gwangju's year-round climate.

Daytime high
21°
6th warmest
Overnight low
7th coldest
Rainfall
57 mm
5 wet days
Daylight
11 h 06 min
6:44 AM – 5:50 PM
Cloud cover
45%
1st clearest
Wind
8 km/h
9th windiest
Solar energy
3.85 kWh/m²
Travel score
7.4
out of 10

Gwangju is metropolitan city in South Korea.

Air quality
Elevated
PM2.5 18 µg/m³ · 2020
Density
2,796/km²
people per km²
Founded
1986

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 23°C in the first days to 18°C by the end.

A typical October day in Gwangju reaches about 21°C in the afternoon and slips back to 9°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°C. Set against its neighbours, October runs about 5°C cooler than September and about 7°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12413
22413
32312
42312
52312
62312
72311
82311
92211
102211
112210
122210
132210
142110
15219
16219
17219
18219
19209
20208
21208
22208
23208
24198
25197
26197
27197
28187
29186
30186
31186

How October really feels in Gwangju

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.

Gwangju 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 / -4°295.23.19.90.0
Feb / -2°355.21.310.71.1
Mar13° / 637.60.911.73.7
Apr19° / 887.8012.96.3
May24° / 12°998.2013.87.1
Jun27° / 17°16410.4014.36.1
Jul29° / 22°25517.1014.14.4
Aug30° / 22°22615.5013.34.4
Sep26° / 17°1389.5012.26.6
Oct21° / 575011.17.4
Nov14° / 466.20.210.24.5
Dec / -2°305.11.89.71.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25347
35347
45446
55644
65644
75842
85941
96040
106139
116238
126238
136337
146436
156436
166436
176535
186535
196535
206535
216535
226634
236733
246733
256733
266733
276832
286832
296832
306832
316931

Chance of precipitation in October

Any precipitation

Gwangju gets around 57 mm of rain over 5 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 17% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
221
321
420
520
619
718
818
917
1016
1116
1215
1315
1415
1515
1615
1715
1815
1915
2015
2115
2215
2315
2415
2515
2615
2716
2816
2917
3017
3118

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 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
145311761
248301561
351291451
454271351
556261251
661241040
76423940
86721930
97019830
107318720
117616620
127715620
137914520
148113510
158212510
168411410
178510410
188610310
19879310
20889300
21908200
22908200
23917200
24917200
25926200
26936100
27936100
28936100
29945100
30945100
31945100

Wind in October

Winds average 8 km/h in October.

Across October, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 6:32 AM to 6:58 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)
111.76:326:11
211.66:336:09
311.66:336:08
411.56:346:07
511.56:356:05
611.56:366:04
711.46:376:02
811.46:386:01
911.46:386:00
1011.36:395:58
1111.36:405:57
1211.26:415:55
1311.26:425:54
1411.26:435:53
1511.16:445:52
1611.16:445:50
1711.16:455:49
1811.06:465:48
1911.06:475:47
2011.06:485:45
2110.96:495:44
2210.96:505:43
2310.96:515:42
2410.86:525:41
2510.86:535:40
2610.76:545:39
2710.76:555:37
2810.76:555:36
2910.66:565:35
3010.66:575:34
3110.66:585:33

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 2.34 kWh/m² to a high of 5.82 kWh/m² in May across the year — October's 3.85 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.0Bright
84.0Bright
94.0Bright
104.0Bright
114.0Moderate
124.0Moderate
134.0Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.4Moderate
303.4Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Gwangju

In seasonPeak

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

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

Gwangju'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 Gwangju?

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

7.4
Sightseeing
1st-best month of the year
4.4
Beach & pool
6th-best month of the year

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

What to pack for Gwangju in October

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

In October, Gwangju sees daytime highs around 21°C and nights near 9°C. Little to plan around — just the basics. About 5 days see rain.

Sea temperature near Gwangju 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 55 km away) is warmest in August at about 25°C and coldest in February near 6°C.

It's comfortable for a long swim from Jun 26 to Oct 11 — about 3.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan8Bracing
Feb6Bracing
Mar7Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Gwangju 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 Gwangju peaks around July 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 highModerateJul 12UV 8Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug7Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Gwangju 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 Gwangju is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (August, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Gwangju's WHO annual average of 18 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1927 µg/m³Aug 1113 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb21Moderate
Mar27Moderate
Apr24Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug13Moderate
Sep15Moderate
Oct16Moderate
Nov17Moderate
Dec15Moderate
Location & terrain

Where is Gwangju?

Gwangju sits at 35.2°N, 126.9°E, 47 m above sea level, in South Korea. The nearest listed city is Masan, 8.0 km away.

Koch'angYeonggwangMuan

Topography around Gwangju

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

Within 3 km, the terrain around Gwangju has significant variations in elevation — a maximum elevation change of 345 m around an average of 69 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,170 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,875 m.

The land around Gwangju is covered by artificial surfaces (78%) and trees (20%) within 3 km, trees (54%), cropland (21%) and artificial surfaces (21%) within 16 km, and trees (52%), cropland (22%) and water (21%) within 80 km.

3 km
345 m
16 km
1,170 m
80 km
1,875 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Masan 8.0 km · Hwasun 12 km · Damyang 19 km · Jangseong 20 km · Naju 23 km · Koch'ang 37 km · Yeonggwang 39 km · Muan 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 Gwangju (35.1547°, 126.9156°, elevation 47 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).