Jinan-gun weather in September

In September, Jinan-gun sees average daytime highs of 24°C and overnight lows near 16°C, with 141 mm of rain across 9.9 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-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 29% of the time in September, and the air most often feels dry.

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

Daytime high
24°
4th warmest
Overnight low
16°
9th coldest
Rainfall
141 mm
9.9 wet days
Daylight
12 h 12 min
6:18 AM – 6:31 PM
Cloud cover
61%
9th clearest
Wind
7 km/h
11th windiest
Solar energy
4.15 kWh/m²
Travel score
6.7
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 Jinan-gun reaches about 24°C in the afternoon and slips back to 16°C overnight — a 9°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
22618
32618
42618
52618
62618
72617
82517
92517
102517
112517
122516
132516
142516
152416
162416
172415
182415
192415
202415
212314
222314
232314
242314
252313
262313
272213
282213
292213
302212

How September really feels in Jinan-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.

Jinan-gun weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -6°316.15.19.80.0
Feb / -4°395.63.210.60.3
Mar11° / 658.12.711.72.7
Apr17° / 898.40.412.95.6
May22° / 11°978.7013.96.9
Jun25° / 16°15511.4014.46.3
Jul27° / 21°25017.3014.25.0
Aug28° / 21°21116.7013.45.0
Sep24° / 16°1419.9012.26.7
Oct19° / 616.1011.16.8
Nov12° / 4870.510.13.3
Dec / -4°336.33.69.60.2

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 15% 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 (%)
13763
23763
33862
43763
53862
63862
73961
84060
94060
104159
114258
124258
134357
144456
154456
164555
174555
184654
194654
204654
214852
224852
234852
244852
254951
264951
274951
285050
295149
305248

Chance of precipitation in September

Any precipitation

Jinan-gun gets around 141 mm of rain over 9.9 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 34% and peaks near 47% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
147
246
345
444
543
642
741
841
940
1039
1138
1237
1336
1435
1534
1633
1732
1830
1929
2028
2128
2227
2326
2426
2526
2625
2725
2825
2924
3024

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1316323315
2318333214
3419343013
4520352912
5621362710
662237269
782337258
892437247
9102537226
10122636215
11142735204
12162734193
13182833183
14212931172
15232930162
16263028151
17293026141
18323025131
19343023111
20373022101
2140302091
2243301980
2345301770
2448291660
2551281560
2654271450
2755261450
2859241340
2961231240
3063221230

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 6:06 AM to 6:29 AM, and sunset from 6:54 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:066:54
212.86:076:52
312.76:086:51
412.76:096:49
512.66:096:48
612.66:106:46
712.66:116:45
812.56:126:43
912.56:126:42
1012.56:136:40
1112.46:146:39
1212.46:156:37
1312.36:166:36
1412.36:166:34
1512.36:176:33
1612.26:186:31
1712.26:196:30
1812.16:206:28
1912.16:206:27
2012.16:216:25
2112.06:226:24
2212.06:236:22
2312.06:236:21
2411.96:246:19
2511.96:256:18
2611.86:266:16
2711.86:276:15
2811.86:286:13
2911.76:286:12
3011.76:296:10

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 2.4 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
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
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
284.0Bright
294.0Bright
304.0Bright
Planning a trip in September

Hazard calendar for Jinan-gun

In seasonPeak

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

Jinan-gun'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 September a good time to visit Jinan-gun?

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

6.7
Sightseeing
3rd-best month of the year
5.6
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Jinan-gun for sightseeing.

What to pack for Jinan-gun in September

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

In September, Jinan-gun sees daytime highs around 24°C and nights near 16°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Jinan-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 Jinan-gun peaks around August 16 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 highHighModerateAug 16UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Jinan-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 Jinan-gun is worst in March — around 69 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (July, 39 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 1668 µg/m³Jul 2239 µg/m³
PM2.5 (µg/m³)Level
Jan57Unhealthy
Feb61Unhealthy
Mar69Unhealthy
Apr59Unhealthy
May52Poor
Jun49Poor
Jul39Poor
Aug40Poor
Sep51Poor
Oct58Unhealthy
Nov61Unhealthy
Dec54Poor
Location & terrain

Where is Jinan-gun?

Jinan-gun sits at 35.8°N, 127.4°E, 295 m above sea level, in South Korea. The nearest listed city is Changsu, 18 km away.

KinzanNamsaNangenIksan

Topography around Jinan-gun

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

Within 3 km, the terrain around Jinan-gun has significant variations in elevation — a maximum elevation change of 511 m around an average of 370 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,059 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,879 m.

The land around Jinan-gun is covered by trees (66%) within 3 km, trees (80%) within 16 km, and trees (71%) and cropland (20%) within 80 km.

3 km
511 m
16 km
1,059 m
80 km
1,879 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Changsu 18 km · Imsil 24 km · Jeonju 25 km · Wanju 26 km · Kinzan 35 km · Namsa 37 km · Nangen 43 km · Iksan 46 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 Jinan-gun (35.7917°, 127.4253°, elevation 295 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).