Chinju weather in September

In September, Chinju sees average daytime highs of 26°C and overnight lows near 17°C, with 192 mm of rain across 10.8 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 27°C in the first days to 24°C by the end. The sky is clear or mostly clear about 29% 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 Chinju's 9th-clearest and 9th-windiest month. For the whole year in context, see Chinju's year-round climate.

Daytime high
26°
4th warmest
Overnight low
17°
9th coldest
Rainfall
192 mm
10.8 wet days
Daylight
12 h 12 min
6:15 AM – 6:29 PM
Cloud cover
61%
9th clearest
Wind
7 km/h
9th windiest
Solar energy
4.15 kWh/m²
Travel score
6.5
out of 10

Chinju is Jinju City, the largest city in western South Gyeongsang Province, where the western office of Gyeongsangnam-do Office is located.

Density
431/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Chinju reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12820
22820
32819
42719
52719
62719
72719
82719
92718
102718
112618
122618
132617
142617
152617
162617
172617
182516
192516
202516
212516
222515
232515
242515
252415
262414
272414
282414
292414
302414

How September really feels in Chinju

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.

Chinju 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°2941.39.90.6
Feb / -3°384.50.910.71.8
Mar14° / 7570.811.74.2
Apr19° / 1118.50.112.96.4
May24° / 12°1188.1013.87.1
Jun27° / 17°17410.3014.36.2
Jul29° / 22°27916.4014.14.6
Aug29° / 22°28616.8013.34.4
Sep26° / 17°19210.8012.26.5
Oct21° / 10°734.7011.17.5
Nov14° / 475.30.110.15.0
Dec / -3°283.60.59.71.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23862
33763
43961
53961
63961
74060
83961
94159
104159
114258
124357
134456
144456
154555
164456
174555
184654
194654
204852
214852
224852
234951
244951
254951
264951
275050
285050
295149
305248

Chance of precipitation in September

Any precipitation

Chinju gets around 192 mm of rain over 10.8 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 36% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
149
248
347
446
545
645
744
843
943
1042
1141
1240
1339
1438
1537
1635
1734
1833
1932
2031
2130
2229
2329
2428
2527
2627
2726
2825
2925
3024

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1072634293
2182834273
3192933262
41103133242
52103232222
62113332211
73123431201
83133430181
94153529170
105163529160
116173528140
128183426130
139203425120
1411213324110
1513223223100
1614243121100
171625302090
181826291880
192028281770
202229281560
212430271460
222631261350
232831251140
243032241040
25323223930
26353223830
27373122830
28403121720
29423019620
30452918610

Wind in September

Winds average 7 km/h in September.

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

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:04 AM to 6:26 AM, and sunset from 6:51 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:046:51
212.76:056:49
312.76:066:48
412.76:066:46
512.66:076:45
612.66:086:43
712.66:096:42
812.56:096:41
912.56:106:39
1012.46:116:38
1112.46:126:36
1212.46:126:35
1312.36:136:33
1412.36:146:32
1512.36:156:30
1612.26:156:29
1712.26:166:27
1812.16:176:26
1912.16:186:24
2012.16:196:22
2112.06:196:21
2212.06:206:19
2312.06:216:18
2411.96:226:16
2511.96:226:15
2611.86:236:13
2711.86:246:12
2811.86:256:11
2911.76:266:09
3011.76:266:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.15 kWh/m².

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 5.83 kWh/m² in May across the year — September's 4.15 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Chinju

In seasonPeak

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

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

Chinju'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 Chinju?

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

6.5
Sightseeing
3rd-best month of the year
6.1
Beach & pool
2nd-best month of the year

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

What to pack for Chinju in September

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

In September, Chinju sees daytime highs around 26°C and nights near 17°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Chinju 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 63 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 19 to Oct 26 — about 4.3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar13Bracing
Apr14Bracing
May16Cool
Jun20Cool
Jul23Refreshing
Aug26Warm
Sep24Warm
Oct21Refreshing
Nov18Cool
Dec15Cool

UV index in Chinju 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 Chinju peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highModerateAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Chinju 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 Chinju is worst in March — around 51 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 29 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorMar 2051 µg/m³Aug 1029 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb43Poor
Mar51Poor
Apr49Poor
May43Poor
Jun38Poor
Jul29Moderate
Aug29Moderate
Sep33Moderate
Oct36Poor
Nov40Poor
Dec35Moderate
Location & terrain

Where is Chinju?

Chinju sits at 35.2°N, 128.1°E, 33 m above sea level, in South Korea. The nearest listed city is Goseong, 32 km away.

NaesŏGwangyangTongyeongKwangyangChangnyeongChangwon

Topography around Chinju

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

Within 3 km, the terrain around Chinju has only modest variations in elevation — a maximum elevation change of 154 m around an average of 52 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 568 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,875 m.

The land around Chinju is covered by trees (47%) and artificial surfaces (38%) within 3 km, trees (69%) within 16 km, and trees (59%) and water (25%) within 80 km.

3 km
154 m
16 km
568 m
80 km
1,875 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Goseong 32 km · Hadong 33 km · Naesŏ 40 km · Gwangyang 45 km · Tongyeong 49 km · Kwangyang 51 km · Changnyeong 54 km · Changwon 54 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 Chinju (35.1928°, 128.0847°, elevation 33 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).