Chaeryŏng-ni weather in September

In September, Chaeryŏng-ni sees average daytime highs of 24°C and overnight lows near 18°C, with 88 mm of rain across 6.1 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 5th-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 44% 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 36 min by month's end. Set against the rest of the year, September is Chaeryŏng-ni's 6th-clearest and 10th-windiest month. For the whole year in context, see Chaeryŏng-ni's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
88 mm
6.1 wet days
Daylight
12 h 12 min
6:26 AM – 6:41 PM
Cloud cover
50%
6th clearest
Wind
11 km/h
10th windiest
Solar energy
4.58 kWh/m²
Travel score
7.6
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 Chaeryŏng-ni reaches about 24°C in the afternoon and slips back to 18°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12620
22620
32620
42620
52620
62620
72519
82519
92519
102519
112519
122519
132518
142518
152418
162418
172418
182418
192417
202417
212317
222317
232317
242316
252316
262316
272216
282215
292215
302215

How September really feels in Chaeryŏng-ni

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.

Chaeryŏng-ni weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-0° / -5°133.22.99.60.0
Feb / -4°173.42.110.50.0
Mar / 254.1111.71.2
Apr14° / 486.10.1134.5
May20° / 12°897.2014.16.8
Jun24° / 18°958.2014.77.1
Jul27° / 22°23314.2014.45.8
Aug28° / 22°19311.9013.56.0
Sep24° / 18°886.1012.37.6
Oct18° / 11°4360116.6
Nov10° / 467.50.89.92.5
Dec / -3°245.72.79.30.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% 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 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25545
35644
45644
55743
65743
75743
85743
95644
105743
115743
125743
135743
145842
155842
165842
175941
185941
196040
206040
216040
226040
236139
246139
256139
266139
276139
286238
296139
306139

Chance of precipitation in September

Any precipitation

Chaeryŏng-ni gets around 88 mm of rain over 6.1 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 21% and peaks near 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
130
229
328
426
525
624
723
822
921
1020
1120
1219
1318
1418
1518
1618
1717
1817
1917
2018
2118
2218
2318
2419
2519
2619
2719
2819
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 27% of days. Sticky, muggy-or-worse air turns up on roughly 30% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1292242241
2292442221
33102541201
43112740181
54132839161
65142938140
76153037120
87163036110
9818313590
10919313380
111020313170
121222313060
131323312850
141525312640
151626302440
161727302230
171929302020
182030291920
192231291720
202332281510
212533281410
222634271210
232834271000
24303526900
25323525700
26353524600
27373523500
28403521400
29423420300
30453319300

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2712calm
2812calm
2912calm
3012calm

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 6:12 AM to 6:39 AM, and sunset from 7:05 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:127:05
212.86:137:04
312.86:147:02
412.86:157:01
512.76:166:59
612.76:176:57
712.66:186:56
812.66:196:54
912.56:206:52
1012.56:206:51
1112.56:216:49
1212.46:226:47
1312.46:236:46
1412.36:246:44
1512.36:256:43
1612.26:266:41
1712.26:276:39
1812.26:286:38
1912.16:296:36
2012.16:306:34
2112.06:316:33
2212.06:326:31
2311.96:326:29
2411.96:336:28
2511.96:346:26
2611.86:356:24
2711.86:366:23
2811.76:376:21
2911.76:386:19
3011.66:396:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.58 kWh/m².

For context, solar energy here swings from a low near 2.12 kWh/m² to a high of 5.97 kWh/m² in May across the year — September's 4.58 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.4Bright
244.4Bright
254.4Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Chaeryŏng-ni

In seasonPeak

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

Chaeryŏng-ni sits in the Pacific typhoon belt; the season peaks July–October.

Chaeryŏng-ni'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 Chaeryŏng-ni?

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

7.6
Sightseeing
1st-best month of the year
6.3
Beach & pool
2nd-best month of the year

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

What to pack for Chaeryŏng-ni in September

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

In September, Chaeryŏng-ni sees daytime highs around 24°C and nights near 18°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Chaeryŏng-ni 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 18 km away) is warmest in August at about 23°C and coldest in February near 1°C.

It's comfortable for a long swim from Jul 13 to Oct 8 — about 2.9 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan3Bracing
Feb1Bracing
Mar3Bracing
Apr7Bracing
May11Bracing
Jun16Cool
Jul21Refreshing
Aug23Refreshing
Sep22Refreshing
Oct19Cool
Nov14Bracing
Dec8Bracing

UV index in Chaeryŏng-ni 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 Chaeryŏng-ni peaks around August 13 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 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateLowAug 13UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr6High
May7High
Jun6High
Jul7Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Chaeryŏng-ni 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 Chaeryŏng-ni is worst in March — around 120 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (August, 68 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMar 15118 µg/m³Aug 1169 µg/m³
PM2.5 (µg/m³)Level
Jan115Unhealthy
Feb108Unhealthy
Mar120Unhealthy
Apr104Unhealthy
May90Unhealthy
Jun83Unhealthy
Jul72Unhealthy
Aug68Unhealthy
Sep87Unhealthy
Oct98Unhealthy
Nov106Unhealthy
Dec99Unhealthy
Location & terrain

Where is Chaeryŏng-ni?

Chaeryŏng-ni sits at 38.7°N, 125.2°E, 13 m above sea level, in North Korea. The nearest listed city is Namp’o, 15 km away.

AnakSongnim-niKwail-ŭpKangsŏnSonghwa

Topography around Chaeryŏng-ni

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

Within 3 km, the terrain around Chaeryŏng-ni has only modest variations in elevation — a maximum elevation change of 206 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 494 m; within 80 km, large variations in elevation — a maximum elevation change of 1,037 m.

The land around Chaeryŏng-ni is covered by water (50%) within 3 km, water (42%) and cropland (35%) within 16 km, and cropland (37%), water (37%) and trees (21%) within 80 km.

3 km
206 m
16 km
494 m
80 km
1,037 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Namp’o 15 km · Ŭllyul 25 km · Ŭnch’ŏn-ŭp 25 km · Anak 34 km · Songnim-ni 36 km · Kwail-ŭp 37 km · Kangsŏn 38 km · Songhwa 43 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 Chaeryŏng-ni (38.7358°, 125.2308°, elevation 13 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).