Beolgyo weather in September

In September, Beolgyo sees average daytime highs of 26°C and overnight lows near 20°C, with 146 mm of rain across 9.4 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 24°C by the end. The sky is clear or mostly clear about 33% 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 Beolgyo's 8th-clearest and 11th-windiest month. For the whole year in context, see Beolgyo's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
146 mm
9.4 wet days
Daylight
12 h 12 min
6:19 AM – 6:31 PM
Cloud cover
58%
8th clearest
Wind
10 km/h
11th windiest
Solar energy
4.21 kWh/m²
Travel score
6.8
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 24°C by the end.

A typical September day in Beolgyo reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12822
22722
32722
42722
52722
62721
72721
82721
92721
102721
112621
122620
132620
142620
152620
162620
172619
182519
192519
202519
212519
222518
232518
242518
252418
262418
272417
282417
292417
302417

How September really feels in Beolgyo

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.

Beolgyo 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 / -2°294.30.89.90.3
Feb / -0°384.70.610.71.3
Mar12° / 737.40.311.73.5
Apr18° / 10°1058012.95.9
May22° / 15°1198013.86.9
Jun25° / 19°1759.8014.36.6
Jul28° / 23°26615.1014.15.1
Aug29° / 24°22815013.34.9
Sep26° / 20°1469.4012.26.8
Oct21° / 13°614.6011.17.5
Nov14° / 455.5010.24.8
Dec / 273.70.49.71.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34357
44456
54456
64555
74555
84654
94654
104753
114753
124753
134852
144951
154951
165050
175050
185050
195149
205248
215248
225248
235248
245347
255347
265347
275446
285446
295446
305545

Chance of precipitation in September

Any precipitation

Beolgyo gets around 146 mm of rain over 9.4 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 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
143
241
340
439
538
637
737
836
935
1035
1134
1234
1333
1432
1531
1631
1730
1829
1929
2028
2127
2227
2326
2426
2525
2625
2724
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 31% of days. Sticky, muggy-or-worse air turns up on roughly 50% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10114403113
20215423012
30216432910
4031743289
5141843268
6151944266
7152044245
8172144234
9182243224
10292342213
112102441203
123122539192
133132637182
144152735172
155172734161
165182832151
176202930141
187212928131
198233026121
209243125111
2110253123101
221126312291
231327312081
241428311971
251628311861
261729311751
271929301641
282229301540
292430291430
302630281330

Wind in September

Winds average 10 km/h in September.

Across September, 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.

051015151015202530
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

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 6:07 AM to 6:29 AM, and sunset from 6:53 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:076:53
212.76:086:52
312.76:096:51
412.76:106:49
512.66:106:48
612.66:116:46
712.56:126:45
812.56:136:43
912.56:136:42
1012.46:146:40
1112.46:156:39
1212.46:166:37
1312.36:166:36
1412.36:176:34
1512.36:186:33
1612.26:196:31
1712.26:196:30
1812.16:206:28
1912.16:216:27
2012.16:226:25
2112.06:226:24
2212.06:236:22
2312.06:246:21
2411.96:256:19
2511.96:256:18
2611.86:266:17
2711.86:276:15
2811.86:286:14
2911.76:286:12
3011.76:296:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.21 kWh/m².

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 5.71 kWh/m² in May across the year — September's 4.21 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Beolgyo

In seasonPeak

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

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

Beolgyo'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 Beolgyo?

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

6.8
Sightseeing
3rd-best month of the year
6.3
Beach & pool
1st-best month of the year

September is a reasonable time to visit Beolgyo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Beolgyo in September

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

In September, Beolgyo sees daytime highs around 26°C and nights near 20°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Beolgyo in September

The nearest coast averages about 24°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 36 km away) is warmest in August at about 26°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 20 to Oct 22 — about 4.1 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr13Bracing
May16Cool
Jun20Cool
Jul23Refreshing
Aug26Warm
Sep24Warm
Oct21Refreshing
Nov17Cool
Dec14Bracing

UV index in Beolgyo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Beolgyo peaks around September 9 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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 highModerateSep 9UV 8Dec 22UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Beolgyo 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 Beolgyo is worst in March — around 42 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (July, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1841 µg/m³Jul 2318 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb35Poor
Mar42Poor
Apr37Poor
May31Moderate
Jun25Moderate
Jul18Moderate
Aug18Moderate
Sep22Moderate
Oct24Moderate
Nov27Moderate
Dec26Moderate
Location & terrain

Where is Beolgyo?

Beolgyo sits at 34.8°N, 127.3°E, 8 m above sea level, in South Korea. The nearest listed city is Suncheon, 18 km away.

HwasunKuryeJangheung

Topography around Beolgyo

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

Within 3 km, the terrain around Beolgyo has significant variations in elevation — a maximum elevation change of 504 m around an average of 70 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 749 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,875 m.

The land around Beolgyo is covered by trees (50%) and cropland (33%) within 3 km, trees (57%) and water (20%) within 16 km, and trees (49%) and water (33%) within 80 km.

3 km
504 m
16 km
749 m
80 km
1,875 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Suncheon 18 km · Boseong 25 km · Kwangyang 27 km · Yeosu 31 km · Gwangyang 34 km · Hwasun 40 km · Kurye 42 km · Jangheung 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 Beolgyo (34.849°, 127.3405°, elevation 8 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).