Kop’ung weather in September

In September, Kop’ung sees average daytime highs of 21°C and overnight lows near 11°C, with 119 mm of rain across 9.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 19°C by the end. The sky is clear or mostly clear about 39% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Kop’ung's 7th-clearest and 10th-windiest month. For the whole year in context, see Kop’ung's year-round climate.

Daytime high
21°
4th warmest
Overnight low
11°
9th coldest
Rainfall
119 mm
9.5 wet days
Daylight
12 h 18 min
6:23 AM – 6:38 PM
Cloud cover
53%
7th clearest
Wind
7 km/h
10th windiest
Solar energy
4.34 kWh/m²
Travel score
6.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 19°C by the end.

A typical September day in Kop’ung reaches about 21°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12415
22314
32314
42314
52314
62313
72313
82313
92213
102213
112212
122212
132212
142212
152111
162111
172111
182111
192110
202110
212010
222010
23209
24209
25199
26198
27198
28198
29198
30187

How September really feels in Kop’ung

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.

Kop’ung weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-6° / -18°163.64.29.40.0
Feb-3° / -14°264.95.210.40.0
Mar / -6°437.76.211.70.4
Apr13° / 749.82.8133.6
May19° / 12512.70.114.25.7
Jun23° / 14°17316.7014.85.6
Jul25° / 18°33421.1014.64.9
Aug25° / 17°28517.9013.65.4
Sep21° / 11°1199.5012.36.6
Oct14° / 698.70.610.94.4
Nov / -5°658.64.89.70.4
Dec-4° / -15°326.36.59.10.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24753
34852
44951
54852
64951
75050
85050
95050
105050
115149
125149
135149
145248
155347
165347
175446
185545
195545
205644
215644
225743
235842
245842
255842
266040
276040
286040
296040
306139

Chance of precipitation in September

Any precipitation

Kop’ung gets around 119 mm of rain over 9.5 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 32% and peaks near 45% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
145
245
344
443
542
641
740
839
937
1036
1135
1234
1333
1432
1530
1629
1728
1828
1927
2026
2126
2226
2325
2425
2526
2626
2726
2826
2926
3027

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 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1253428131
2273526121
3303524110
4323622100
535362090
637361880
740361770
843361560
945361450
1048351340
1151341230
1254331120
1357311020
146129910
156427810
166725710
176824710
187222600
197520500
207818400
218016400
228314300
238512300
248711200
25899200
26918100
27936100
28945100
29964000
30964000

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
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 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:08 AM to 6:37 AM, and sunset from 7:04 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:087:04
212.96:097:03
312.96:107:01
412.86:116:59
512.86:126:58
612.76:136:56
712.76:146:54
812.66:156:52
912.66:166:51
1012.56:176:49
1112.56:186:47
1212.46:196:45
1312.46:206:44
1412.46:216:42
1512.36:226:40
1612.36:236:38
1712.26:246:37
1812.26:256:35
1912.16:266:33
2012.16:276:31
2112.06:286:30
2212.06:296:28
2311.96:306:26
2411.96:316:24
2511.96:326:23
2611.86:336:21
2711.86:346:19
2811.76:356:18
2911.76:366:16
3011.66:376:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.34 kWh/m².

For context, solar energy here swings from a low near 2.12 kWh/m² to a high of 5.58 kWh/m² in May across the year — September's 4.34 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.1Bright
304.0Bright
Planning a trip in September

Hazard calendar for Kop’ung

In seasonPeak

None of Kop’ung's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Kop’ung's rainy season runs June–August, 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 Kop’ung?

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

6.6
Sightseeing
1st-best month of the year
4.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kop’ung for sightseeing.

What to pack for Kop’ung in September

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

In September, Kop’ung sees daytime highs around 21°C and nights near 11°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Kop’ung 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 Kop’ung peaks around August 19 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowAug 19UV 8Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May7High
Jun6High
Jul6High
Aug8Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Kop’ung 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 Kop’ung is worst in March — around 43 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (August, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1542 µg/m³Aug 2219 µg/m³
PM2.5 (µg/m³)Level
Jan34Moderate
Feb38Poor
Mar43Poor
Apr36Poor
May32Moderate
Jun28Moderate
Jul22Moderate
Aug19Moderate
Sep20Moderate
Oct25Moderate
Nov27Moderate
Dec29Moderate
Location & terrain

Where is Kop’ung?

Kop’ung sits at 40.6°N, 125.9°E, 412 m above sea level, in North Korea. The nearest listed city is Songwŏn, 26 km away.

Songwŏn-ŭpSijungYŏch’im-dongKanggyeManp’oSakchu-ŭpKujang-ŭp

Topography around Kop’ung

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

Within 3 km, the terrain around Kop’ung has significant variations in elevation — a maximum elevation change of 465 m around an average of 558 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,570 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,929 m.

The land around Kop’ung is covered by grassland (41%) and trees (37%) within 3 km, trees (84%) within 16 km, and trees (84%) within 80 km.

3 km
465 m
16 km
1,570 m
80 km
1,929 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Songwŏn 26 km · Songwŏn-ŭp 40 km · Sijung 64 km · Yŏch’im-dong 66 km · Kanggye 67 km · Manp’o 68 km · Sakchu-ŭp 80 km · Kujang-ŭp 82 km

North Korea travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
220 V · 50 Hz
Safe drinking water
67%
of population, 2023
Road deaths
24.2
per 100k/yr, 2019
Income group
Low
World Bank

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 Kop’ung (40.6039°, 125.9467°, elevation 412 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).