Daejeon weather in October

In October, Daejeon sees average daytime highs of 20°C and overnight lows near 10°C, with 56 mm of rain across 5.1 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 17°C by the end. The sky is clear or mostly clear about 47% 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 30 min by month's end. Set against the rest of the year, October is Daejeon's 1st-clearest and 11th-windiest month. For the whole year in context, see Daejeon's year-round climate.

Daytime high
20°
6th warmest
Overnight low
10°
7th coldest
Rainfall
56 mm
5.1 wet days
Daylight
11 h 06 min
6:44 AM – 5:47 PM
Cloud cover
45%
1st clearest
Wind
8 km/h
11th windiest
Solar energy
3.75 kWh/m²
Travel score
7.3
out of 10

Daejeon is human settlement in South Korea.

Air quality
Elevated
PM2.5 18 µg/m³ · 2020

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 17°C by the end.

A typical October day in Daejeon reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, October runs about 5°C cooler than September and about 8°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12313
22313
32313
42313
52212
62212
72212
82212
92211
102211
112111
122111
132110
142110
152110
162010
172010
18209
19209
20209
21199
22198
23198
24198
25188
26187
27187
28187
29177
30177
31176

How October really feels in Daejeon

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.

Daejeon weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°244.82.89.80.0
Feb / -3°324.71.810.60.7
Mar12° / 537.41.311.73.4
Apr19° / 787.70.212.96.3
May24° / 13°867.8013.97.2
Jun27° / 18°1238.9014.46.4
Jul29° / 22°23015.7014.24.7
Aug30° / 22°19715013.44.6
Sep26° / 17°1388.4012.26.9
Oct20° / 10°565.1011.17.3
Nov13° / 416.20.310.13.9
Dec / -3°2551.69.60.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in October, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% 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 (%)
15545
25545
35644
45743
55743
65842
75941
86040
96139
106238
116337
126337
136436
146436
156535
166535
176634
186634
196733
206733
216832
226931
236931
247030
257030
267030
277030
287129
297030
307030
316931

Chance of precipitation in October

Any precipitation

Daejeon gets around 56 mm of rain over 5.1 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 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
417
517
616
716
816
916
1015
1115
1215
1315
1415
1515
1615
1715
1816
1916
2016
2116
2216
2316
2416
2516
2617
2717
2817
2917
3018
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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15626144
25825134
36124123
46422113
56621103
6692092
7721882
8741772
9771562
10791461
11811351
12821251
13841141
14861040
15871030
1688930
1790820
1891720
1991720
2093610
2193610
2294510
2394510
2496400
2596400
2697300
2797300
2897300
2997300
3098200
3198200

Wind in October

Winds average 8 km/h in October.

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

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
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 36 min at the start of October to 10 h 30 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 6:30 AM to 6:58 AM, and sunset from 6:08 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:306:08
211.66:316:07
311.66:326:05
411.56:336:04
511.56:346:03
611.46:356:01
711.46:366:00
811.46:375:58
911.36:375:57
1011.36:385:55
1111.26:395:54
1211.26:405:53
1311.26:415:51
1411.16:425:50
1511.16:435:49
1611.16:445:47
1711.06:455:46
1811.06:465:45
1910.96:475:43
2010.96:485:42
2110.96:495:41
2210.86:505:40
2310.86:505:38
2410.86:515:37
2510.76:525:36
2610.76:535:35
2710.76:545:34
2810.66:555:33
2910.66:565:32
3010.66:575:31
3110.56:585:30

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.75 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 5.88 kWh/m² in May across the year — October's 3.75 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Moderate
54.0Moderate
64.0Moderate
74.0Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Daejeon

In seasonPeak

None of Daejeon's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Daejeon's rainy season runs June–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Daejeon?

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

7.3
Sightseeing
1st-best month of the year
3.9
Beach & pool
6th-best month of the year

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

What to pack for Daejeon in October

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

In October, Daejeon sees daytime highs around 20°C and nights near 10°C. Little to plan around — just the basics. About 5 days see rain.

UV index in Daejeon 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 Daejeon peaks around August 14 at about 8 (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 highHighModerateAug 14UV 8Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun7Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Daejeon 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 Daejeon is worst in March — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1623 µg/m³Jul 2213 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar23Moderate
Apr20Moderate
May17Moderate
Jun16Moderate
Jul13Moderate
Aug13Moderate
Sep17Moderate
Oct19Moderate
Nov20Moderate
Dec18Moderate
Location & terrain

Where is Daejeon?

Daejeon sits at 36.3°N, 127.4°E, 58 m above sea level, in South Korea. The nearest listed city is Okcheon, 17 km away.

YŏnmuYeongdong

Topography around Daejeon

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

Within 3 km, the terrain around Daejeon has only modest variations in elevation — a maximum elevation change of 155 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 808 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,594 m.

The land around Daejeon is covered by artificial surfaces (69%) within 3 km, trees (67%) within 16 km, and trees (67%) and cropland (22%) within 80 km.

3 km
155 m
16 km
808 m
80 km
1,594 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Okcheon 17 km · Gongju 26 km · Sejong 28 km · Kinzan 29 km · Nonsan 31 km · Cheongju-si 33 km · Yŏnmu 35 km · Yeongdong 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 Daejeon (36.3491°, 127.3849°, elevation 58 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. 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).