Yeonggwang weather in September

In September, Yeonggwang sees average daytime highs of 25°C and overnight lows near 19°C, with 154 mm of rain across 8.9 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 38% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Yeonggwang's 5th-clearest and 11th-windiest month. For the whole year in context, see Yeonggwang's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
154 mm
8.9 wet days
Daylight
12 h 12 min
6:22 AM – 6:35 PM
Cloud cover
54%
5th clearest
Wind
11 km/h
11th windiest
Solar energy
4.45 kWh/m²
Travel score
7.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 23°C by the end.

A typical September day in Yeonggwang reaches about 25°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12722
22722
32722
42621
52621
62621
72621
82621
92621
102620
112620
122520
132520
142520
152520
162519
172519
182519
192419
202419
212418
222418
232418
242418
252418
262317
272317
282317
292317
302317

How September really feels in Yeonggwang

Once humidity and wind are folded in, September 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

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

Yeonggwang weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°347.14.19.90.0
Feb / 395.92.110.70.5
Mar10° / 637.30.711.72.4
Apr15° / 907.6012.95.0
May20° / 13°1028013.86.7
Jun24° / 18°1639.3014.36.8
Jul27° / 23°23514.5014.15.5
Aug28° / 24°22214.5013.35.3
Sep25° / 19°1548.9012.27.0
Oct20° / 13°585011.17.2
Nov13° / 527.20.110.14.1
Dec / 388.13.29.71.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54852
64852
74951
84951
95050
105149
115149
125248
135248
145248
155347
165347
175545
185545
195545
205644
215644
225644
235743
245743
255743
265743
275743
285842
295842
305842

Chance of precipitation in September

Any precipitation

Yeonggwang gets around 154 mm of rain over 8.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
142
241
340
440
539
638
737
836
935
1034
1134
1233
1332
1431
1531
1630
1729
1828
1927
2026
2125
2225
2324
2424
2524
2624
2723
2823
2923
3022

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1021342348
2121543337
3131644316
4141745295
5141846274
6151946263
7262046243
8272146232
9282245211
10392345201
113112443181
124122542171
134132640160
145152739140
156162837130
166182935120
177193033110
188203131100
19922322980
201023332770
211124342560
221225342350
231326352250
241526352040
251627341930
261828341730
272028331620
282328321520
292529311410
302829291310

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 6:10 AM to 6:33 AM, and sunset from 6:57 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:106:57
212.76:116:56
312.76:126:54
412.76:136:53
512.66:136:51
612.66:146:50
712.66:156:48
812.56:166:47
912.56:166:45
1012.46:176:44
1112.46:186:42
1212.46:196:41
1312.36:196:39
1412.36:206:38
1512.36:216:36
1612.26:226:35
1712.26:226:33
1812.16:236:32
1912.16:246:30
2012.16:256:29
2112.06:266:27
2212.06:266:26
2312.06:276:24
2411.96:286:23
2511.96:296:21
2611.86:296:20
2711.86:306:18
2811.86:316:17
2911.76:326:15
3011.76:336:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.45 kWh/m².

For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 5.95 kWh/m² in May across the year — September's 4.45 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Yeonggwang

In seasonPeak

In September, Yeonggwang sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

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

Yeonggwang'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 September a good time to visit Yeonggwang?

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

7.0
Sightseeing
2nd-best month of the year
6.1
Beach & pool
2nd-best month of the year

September is one of the better times to visit Yeonggwang for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Yeonggwang in September

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

In September, Yeonggwang sees daytime highs around 25°C and nights near 19°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Yeonggwang in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 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 Yeonggwang in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yeonggwang peaks around June 21 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 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 highHighModerateJun 21UV 8Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr6High
May7Very high
Jun8Very high
Jul8Very high
Aug7Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Yeonggwang in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Yeonggwang is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (August, 28 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorModerateMar 1960 µg/m³Aug 1129 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb48Poor
Mar61Unhealthy
Apr54Poor
May45Poor
Jun39Poor
Jul29Moderate
Aug28Moderate
Sep33Moderate
Oct35Moderate
Nov38Poor
Dec34Moderate
Location & terrain

Where is Yeonggwang?

Yeonggwang sits at 35.3°N, 126.5°E, 44 m above sea level, in South Korea. The nearest listed city is Koch'ang, 24 km away.

GwangjuDamyangHwasun

Topography around Yeonggwang

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

Within 3 km, the terrain around Yeonggwang has only modest variations in elevation — a maximum elevation change of 235 m around an average of 50 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 580 m; within 80 km, large variations in elevation — a maximum elevation change of 1,171 m.

The land around Yeonggwang is covered by trees (39%) and cropland (36%) within 3 km, trees (47%) and cropland (36%) within 16 km, and water (42%) and trees (33%) within 80 km.

3 km
235 m
16 km
580 m
80 km
1,171 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Koch'ang 24 km · Jangseong 25 km · Muan 32 km · Naju 33 km · Masan 34 km · Gwangju 39 km · Damyang 43 km · Hwasun 50 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 Yeonggwang (35.2781°, 126.5118°, elevation 44 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).