Uijeongbu-si weather in September

In September, Uijeongbu-si sees average daytime highs of 25°C and overnight lows near 16°C, with 118 mm of rain across 7.8 wet days and about 12.3 hours of daylight. It is the 4th-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 37% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Uijeongbu-si's 9th-clearest and 12th-windiest month. For the whole year in context, see Uijeongbu-si's year-round climate.

Daytime high
25°
4th warmest
Overnight low
16°
9th coldest
Rainfall
118 mm
7.8 wet days
Daylight
12 h 12 min
6:19 AM – 6:33 PM
Cloud cover
56%
9th clearest
Wind
7 km/h
12th windiest
Solar energy
4.23 kWh/m²
Travel score
7.1
out of 10

Uijeongbu-si is human settlement in South Korea.

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 23°C by the end.

A typical September day in Uijeongbu-si reaches about 25°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 22°C and 28°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52718
62718
72718
82618
92618
102617
112617
122617
132617
142616
152516
162516
172516
182516
192515
202515
212515
222415
232414
242414
252414
262414
272313
282313
292313
302313

How September really feels in Uijeongbu-si

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.

Uijeongbu-si 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 / -7°193.52.49.70.0
Feb / -5°254.2210.50.3
Mar10° / 386.31.211.72.7
Apr17° / 697.30.112.95.8
May23° / 12°1007.90147.1
Jun26° / 17°1239.1014.66.6
Jul28° / 22°31517014.34.9
Aug29° / 22°26515.2013.54.9
Sep25° / 16°1187.8012.37.1
Oct19° / 525.40117.0
Nov11° / 467.10.5103.1
Dec / -5°234.829.40.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24456
34456
44555
54555
64555
74654
84753
94753
104753
114852
124852
134951
144951
155149
165149
175248
185248
195347
205347
215446
225545
235545
245545
255545
265545
275545
285545
295644
305743

Chance of precipitation in September

Any precipitation

Uijeongbu-si gets around 118 mm of rain over 7.8 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 27% and peaks near 38% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
237
336
434
533
632
731
831
930
1029
1128
1228
1327
1427
1526
1626
1725
1824
1924
2023
2122
2222
2322
2422
2521
2621
2721
2821
2920
3020

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 25% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12102836212
23113035192
33123134181
44143233161
55153232141
66163331131
77173330111
88183429100
91020332890
101121332770
111322322660
121523322550
131725312350
141926302240
152127292030
162328271830
172629261720
182830251520
193031241410
203231231210
213432221110
223733201010
23393319900
24413318700
25433317600
26453316500
27483314500
28503313400
29533212300
30553111300

Wind in September

Winds average 7 km/h in September, the calmest month.

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
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 54 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 72 minutes over September. Sunrise moves from 6:06 AM to 6:31 AM, and sunset from 6:57 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:066:57
212.86:076:56
312.86:086:54
412.76:096:52
512.76:096:51
612.76:106:49
712.66:116:48
812.66:126:46
912.56:136:45
1012.56:146:43
1112.46:156:41
1212.46:156:40
1312.46:166:38
1412.36:176:37
1512.36:186:35
1612.26:196:33
1712.26:206:32
1812.26:216:30
1912.16:226:28
2012.16:226:27
2112.06:236:25
2212.06:246:24
2311.96:256:22
2411.96:266:20
2511.96:276:19
2611.86:286:17
2711.86:296:16
2811.76:306:14
2911.76:306:12
3011.76:316:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.23 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.76 kWh/m² in May across the year — September's 4.23 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
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.0Bright
304.0Bright
Planning a trip in September

Hazard calendar for Uijeongbu-si

In seasonPeak

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

Uijeongbu-si sits in the Pacific typhoon belt; the season peaks July–October.

Uijeongbu-si's rainy season runs July–August, 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 Uijeongbu-si?

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

7.1
Sightseeing
1st-best month of the year
6.4
Beach & pool
2nd-best month of the year

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

What to pack for Uijeongbu-si in September

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

In September, Uijeongbu-si sees daytime highs around 25°C and nights near 16°C. Worth packing: light clothes. About 8 days see rain.

light clothes

Sea temperature near Uijeongbu-si 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 55 km away) is warmest in August at about 24°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 11 to Oct 13 — about 3.1 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun17Cool
Jul21Refreshing
Aug24Refreshing
Sep23Refreshing
Oct20Cool
Nov15Bracing
Dec10Bracing

UV index in Uijeongbu-si in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Uijeongbu-si peaks around August 11 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 11UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Uijeongbu-si 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 Uijeongbu-si is worst in March — around 160 µg/m³ PM2.5 (very unhealthy), about 2.0× the cleanest month (August, 81 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyUnhealthyMar 13158 µg/m³Aug 1282 µg/m³
PM2.5 (µg/m³)Level
Jan145Unhealthy
Feb149Unhealthy
Mar160Very unhealthy
Apr127Unhealthy
May111Unhealthy
Jun98Unhealthy
Jul88Unhealthy
Aug81Unhealthy
Sep110Unhealthy
Oct132Unhealthy
Nov142Unhealthy
Dec133Unhealthy
Location & terrain

Where is Uijeongbu-si?

Uijeongbu-si sits at 37.7°N, 127.0°E, 50 m above sea level, in South Korea. The nearest listed city is Yangju, 10 km away.

Topography around Uijeongbu-si

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

Within 3 km, the terrain around Uijeongbu-si has significant variations in elevation — a maximum elevation change of 373 m around an average of 89 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 771 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,443 m.

The land around Uijeongbu-si is covered by artificial surfaces (48%) and trees (47%) within 3 km, trees (63%) and artificial surfaces (26%) within 16 km, and trees (54%) within 80 km.

3 km
373 m
16 km
771 m
80 km
1,443 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Yangju 10 km · Guri-si 18 km · Namyangju 19 km · Seoul 20 km · Goyang-si 21 km · Wabu 23 km · Hwado 25 km · Hanam 26 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 Uijeongbu-si (37.7415°, 127.0474°, elevation 50 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).