Cheongsong gun weather in September

In September, Cheongsong gun sees average daytime highs of 24°C and overnight lows near 16°C, with 146 mm of rain across 9.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 22°C by the end. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels humid.

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 Cheongsong gun's 9th-clearest and 11th-windiest month. For the whole year in context, see Cheongsong gun's year-round climate.

Daytime high
24°
4th warmest
Overnight low
16°
9th coldest
Rainfall
146 mm
9.1 wet days
Daylight
12 h 12 min
6:11 AM – 6:25 PM
Cloud cover
63%
9th clearest
Wind
9 km/h
11th windiest
Solar energy
3.92 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 26°C in the first days to 22°C by the end.

A typical September day in Cheongsong gun reaches about 24°C in the afternoon and slips back to 16°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 28°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)
12619
22619
32619
42618
52618
62518
72518
82518
92517
102517
112517
122517
132417
142416
152416
162416
172416
182415
192315
202315
212315
222315
232314
242314
252214
262214
272214
282213
292213
302213

How September really feels in Cheongsong gun

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.

Cheongsong gun weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°233.62.19.80.0
Feb / -3°314.11.910.60.5
Mar11° / 587.22.311.73.0
Apr18° / 827.70.212.95.9
May22° / 12°897.9013.97.1
Jun25° / 17°1188.7014.46.7
Jul28° / 21°21714.3014.25.3
Aug28° / 21°20214.2013.45.3
Sep24° / 16°1469.1012.26.8
Oct19° / 554.5011.16.9
Nov12° / 354.80.210.13.6
Dec / -3°223.81.39.60.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 58%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33763
43763
53664
63763
73763
83763
93763
103862
113961
123961
134060
144060
154258
164258
174258
184456
194456
204555
214654
224753
234654
244753
254753
264951
274951
284951
294951
305050

Chance of precipitation in September

Any precipitation

Cheongsong gun gets around 146 mm of rain over 9.1 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 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
340
440
539
639
738
838
937
1036
1136
1235
1334
1433
1531
1630
1729
1828
1927
2026
2125
2224
2323
2422
2522
2621
2721
2820
2920
3019

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12153829161
22173828141
32183927130
43193927110
54204026100
6522402590
7523402480
8624402370
9825402260
10926392050
111127391940
121328381840
131529361730
141730351530
151931341420
162232321320
172432301220
182633291110
192933281010
20313326810
21343325710
22363324610
23393322610
24413321500
25443219400
26463218400
27493117300
28513016300
29542815300
30572714200

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:59 AM to 6:23 AM, and sunset from 6:48 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:596:48
212.86:006:46
312.76:016:45
412.76:026:43
512.76:026:42
612.66:036:40
712.66:046:39
812.56:056:37
912.56:066:36
1012.56:066:34
1112.46:076:33
1212.46:086:31
1312.36:096:30
1412.36:106:28
1512.36:106:26
1612.26:116:25
1712.26:126:23
1812.16:136:22
1912.16:146:20
2012.16:156:19
2112.06:156:17
2212.06:166:16
2312.06:176:14
2411.96:186:12
2511.96:196:11
2611.86:206:09
2711.86:206:08
2811.86:216:06
2911.76:226:05
3011.76:236:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m².

For context, solar energy here swings from a low near 2.54 kWh/m² to a high of 5.82 kWh/m² in May across the year — September's 3.92 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Bright
54.0Moderate
64.0Moderate
74.0Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Cheongsong gun

In seasonPeak

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

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

Cheongsong gun'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 Cheongsong gun?

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
5.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Cheongsong gun for sightseeing.

What to pack for Cheongsong gun in September

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

In September, Cheongsong gun sees daytime highs around 24°C and nights near 16°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Cheongsong gun 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 29 km away) is warmest in August at about 24°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 28 to Oct 19 — about 3.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct20Refreshing
Nov17Cool
Dec15Bracing

UV index in Cheongsong gun 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 Cheongsong gun peaks around August 14 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 highHighModerateAug 14UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun7High
Jul9Very high
Aug10Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Cheongsong gun 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 Cheongsong gun is worst in March — around 47 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (September, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1846 µg/m³Sep 921 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb37Poor
Mar47Poor
Apr40Poor
May36Poor
Jun31Moderate
Jul23Moderate
Aug21Moderate
Sep21Moderate
Oct25Moderate
Nov31Moderate
Dec29Moderate
Location & terrain

Where is Cheongsong gun?

Cheongsong gun sits at 36.4°N, 129.1°E, 197 m above sea level, in South Korea. The nearest listed city is Andong, 33 km away.

HeunghaeKunwiPohangEisenYeonilYeongjuYecheon

Topography around Cheongsong gun

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

Within 3 km, the terrain around Cheongsong gun has significant variations in elevation — a maximum elevation change of 346 m around an average of 282 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 1,549 m.

The land around Cheongsong gun is covered by trees (73%) within 3 km, trees (84%) within 16 km, and trees (64%) and water (21%) within 80 km.

3 km
346 m
16 km
808 m
80 km
1,549 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Andong 33 km · Heunghae 44 km · Kunwi 49 km · Pohang 53 km · Eisen 53 km · Yeonil 53 km · Yeongju 58 km · Yecheon 59 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 Cheongsong gun (36.4335°, 129.057°, elevation 197 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).