Kowŏn-ŭp weather in September

In September, Kowŏn-ŭp sees average daytime highs of 24°C and overnight lows near 14°C, with 128 mm of rain across 9.5 wet days and about 12.3 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 36% of the time in September, and the air most often feels comfortable.

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 Kowŏn-ŭp's 9th-clearest and 12th-windiest month. For the whole year in context, see Kowŏn-ŭp's year-round climate.

Daytime high
24°
4th warmest
Overnight low
14°
9th coldest
Rainfall
128 mm
9.5 wet days
Daylight
12 h 18 min
6:18 AM – 6:33 PM
Cloud cover
57%
9th clearest
Wind
7 km/h
12th windiest
Solar energy
4.23 kWh/m²
Travel score
6.9
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 Kowŏn-ŭp reaches about 24°C in the afternoon and slips back to 14°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 27°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)
12618
22617
32617
42517
52517
62517
72516
82516
92516
102516
112415
122415
132415
142415
152415
162414
172414
182314
192314
202313
212313
222313
232313
242212
252212
262212
272212
282211
292211
302211

How September really feels in Kowŏn-ŭp

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.

Kowŏn-ŭp 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 / -10°334.859.50.0
Feb / -7°314.84.410.50.0
Mar / -2°426.94.311.72.2
Apr17° / 616.81135.6
May22° / 11°938.5014.17.0
Jun25° / 16°11310.3014.76.6
Jul27° / 20°23715.2014.55.4
Aug28° / 20°24015.8013.55.3
Sep24° / 14°1289.5012.36.9
Oct18° / 657.40116.4
Nov10° / 728.21.69.82.4
Dec / -6°3653.89.30.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24258
34258
44357
54357
64456
74456
84456
94555
104555
114654
124654
134753
144753
154951
165050
175050
185149
195149
205248
215248
225446
235545
245545
255644
265644
275743
285743
295842
305941

Chance of precipitation in September

Any precipitation

Kowŏn-ŭp gets around 128 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 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
144
243
342
441
540
639
738
837
936
1035
1135
1234
1333
1433
1532
1632
1731
1830
1929
2029
2128
2227
2327
2426
2526
2625
2725
2825
2925
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 16% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1314333811
2416353610
3417363310
451837319
561938298
672139277
782240256
892340235
9102440214
10122640193
11142740172
12162839152
13182938131
14203037121
15233135101
1625333391
1727343170
1830353060
1932352850
2034362540
2137372330
2240372120
2342371920
2445371710
2548361510
2651351310
2755341100
2857331000
296032800
306330700

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
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:04 AM to 6:31 AM, and sunset from 6:58 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:046:58
212.96:046:56
312.86:056:55
412.86:066:53
512.76:076:51
612.76:086:50
712.66:096:48
812.66:106:46
912.66:116:45
1012.56:126:43
1112.56:136:41
1212.46:146:40
1312.46:156:38
1412.36:166:36
1512.36:176:35
1612.36:186:33
1712.26:196:31
1812.26:206:30
1912.16:216:28
2012.16:226:26
2112.06:236:24
2212.06:236:23
2311.96:246:21
2411.96:256:19
2511.96:266:18
2611.86:276:16
2711.86:286:14
2811.76:296:13
2911.76:306:11
3011.66:316:09

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 2.25 kWh/m² to a high of 5.84 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 Kowŏn-ŭp

In seasonPeak

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

Kowŏn-ŭp sits in the Pacific typhoon belt; the season peaks July–October.

Kowŏn-ŭp'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 Kowŏn-ŭp?

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

6.9
Sightseeing
2nd-best month of the year
5.5
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kowŏn-ŭp for sightseeing.

What to pack for Kowŏn-ŭp in September

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

In September, Kowŏn-ŭp sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

Sea temperature near Kowŏn-ŭp in September

The nearest coast averages about 22°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 34 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 2 to Sep 30 — about 3 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan5Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug24Warm
Sep22Refreshing
Oct18Cool
Nov13Bracing
Dec8Bracing

UV index in Kowŏn-ŭp 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 Kowŏn-ŭp peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 highHighVery highModerateLowAug 19UV 8Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7High
Jun7Very high
Jul6High
Aug8Very high
Sep7Very high
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Kowŏn-ŭp 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 Kowŏn-ŭp is worst in March — around 96 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (July, 43 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 996 µg/m³Jul 1943 µg/m³
PM2.5 (µg/m³)Level
Jan95Unhealthy
Feb96Unhealthy
Mar96Unhealthy
Apr80Unhealthy
May64Unhealthy
Jun51Poor
Jul43Poor
Aug46Poor
Sep62Unhealthy
Oct83Unhealthy
Nov87Unhealthy
Dec84Unhealthy
Location & terrain

Where is Kowŏn-ŭp?

Kowŏn-ŭp sits at 39.4°N, 127.2°E, 9 m above sea level, in North Korea. The nearest listed city is Wŏnsan, 36 km away.

WŏnsanAnbyŏn-ŭpHŭngnamHamhŭngKosanYŏnggwang-ŭpT’ongch’ŏn-ŭpSamho-rodongjagu

Topography around Kowŏn-ŭp

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

Within 3 km, the terrain around Kowŏn-ŭp has only modest variations in elevation — a maximum elevation change of 55 m around an average of 11 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,101 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,890 m.

The land around Kowŏn-ŭp is covered by cropland (86%) within 3 km, cropland (50%) and trees (37%) within 16 km, and trees (59%) and water (21%) within 80 km.

3 km
55 m
16 km
1,101 m
80 km
1,890 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Wŏnsan 36 km · Anbyŏn-ŭp 50 km · Hŭngnam 56 km · Hamhŭng 59 km · Kosan 66 km · Yŏnggwang-ŭp 67 km · T’ongch’ŏn-ŭp 78 km · Samho-rodongjagu 78 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 Kowŏn-ŭp (39.4381°, 127.2431°, elevation 9 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).