T’aet’an-ŭp weather in September

In September, T’aet’an-ŭp sees average daytime highs of 23°C and overnight lows near 18°C, with 90 mm of rain across 6.7 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 21°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 42 min by month's end. Set against the rest of the year, September is T’aet’an-ŭp's 4th-clearest and 10th-windiest month. For the whole year in context, see T’aet’an-ŭp's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
90 mm
6.7 wet days
Daylight
12 h 12 min
6:26 AM – 6:40 PM
Cloud cover
50%
4th clearest
Wind
12 km/h
10th windiest
Solar energy
4.55 kWh/m²
Travel score
7.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 21°C by the end.

A typical September day in T’aet’an-ŭp reaches about 23°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°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)
12521
22521
32521
42520
52520
62520
72420
82420
92420
102419
112419
122419
132419
142419
152319
162318
172318
182318
192318
202318
212318
222217
232217
242217
252217
262217
272116
282116
292116
302116

How September really feels in T’aet’an-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.

T’aet’an-ŭp weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°153.63.39.70.0
Feb / -2°213.51.610.50.0
Mar / 274.50.811.70.9
Apr12° / 536.50.1133.5
May17° / 12°906.90145.9
Jun22° / 17°917.5014.66.9
Jul25° / 22°24512.7014.46.3
Aug26° / 23°21511.5013.56.4
Sep23° / 18°906.7012.37.5
Oct18° / 12°405.10116.5
Nov11° / 456.90.59.92.8
Dec / -1°245.63.19.40.1

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 13% of September, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25446
35446
45446
55446
65446
75446
85446
95446
105446
115545
125545
135545
145644
155644
165743
175743
185842
195842
205941
215941
226040
236040
246040
256139
266139
276139
286139
296139
306139

Chance of precipitation in September

Any precipitation

T’aet’an-ŭp gets around 90 mm of rain over 6.7 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 22% and peaks near 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
131
230
329
429
528
627
726
825
924
1023
1123
1222
1321
1421
1520
1620
1719
1819
1919
2019
2119
2219
2319
2419
2519
2619
2719
2819
2919
3019

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 33% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1182044252
2292144231
32102243221
43112342201
53122442181
64132541161
75142640140
86152739130
97162738110
108182837100
11919293580
121020293370
131122293160
141323292950
151424302850
161526302640
171727302430
181828302230
191929302020
202030301820
212131301610
222332301410
232433291210
242634291110
25283428900
26313427800
27333426700
28363425600
29393324500
30413322400

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:13 AM to 6:39 AM, and sunset from 7:04 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:137:04
212.86:137:03
312.86:147:01
412.76:157:00
512.76:166:58
612.76:176:57
712.66:186:55
812.66:196:53
912.56:206:52
1012.56:216:50
1112.56:216:49
1212.46:226:47
1312.46:236:45
1412.36:246:44
1512.36:256:42
1612.26:266:40
1712.26:276:39
1812.26:286:37
1912.16:296:35
2012.16:296:34
2112.06:306:32
2212.06:316:31
2311.96:326:29
2411.96:336:27
2511.96:346:26
2611.86:356:24
2711.86:366:22
2811.76:376:21
2911.76:386:19
3011.76:396:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.55 kWh/m².

For context, solar energy here swings from a low near 2.05 kWh/m² to a high of 6 kWh/m² in May across the year — September's 4.55 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
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for T’aet’an-ŭp

In seasonPeak

In September, T’aet’an-ŭp sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

T’aet’an-ŭp sits in the Pacific typhoon belt; the season peaks July–October.

T’aet’an-ŭp'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 T’aet’an-ŭp?

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

7.5
Sightseeing
1st-best month of the year
5.8
Beach & pool
2nd-best month of the year

September is one of the better times to visit T’aet’an-ŭp for general sightseeing.

What to pack for T’aet’an-ŭp in September

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

In September, T’aet’an-ŭp sees daytime highs around 23°C and nights near 18°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near T’aet’an-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 28 km away) is warmest in August at about 24°C and coldest in February near 5°C.

It's comfortable for a long swim from Jul 7 to Oct 1 — about 2.9 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb5Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun17Cool
Jul21Refreshing
Aug24Refreshing
Sep22Refreshing
Oct18Cool
Nov13Bracing
Dec9Bracing

UV index in T’aet’an-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 T’aet’an-ŭp 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 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 highHighModerateLowAug 11UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7High
Jun6High
Jul8Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in T’aet’an-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 T’aet’an-ŭp is worst in November — around 82 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (July, 40 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyNov 1981 µg/m³Jul 2240 µg/m³
PM2.5 (µg/m³)Level
Jan80Unhealthy
Feb78Unhealthy
Mar80Unhealthy
Apr66Unhealthy
May54Poor
Jun46Poor
Jul40Poor
Aug41Poor
Sep58Unhealthy
Oct72Unhealthy
Nov82Unhealthy
Dec77Unhealthy
Location & terrain

Where is T’aet’an-ŭp?

T’aet’an-ŭp sits at 38.1°N, 125.3°E, 22 m above sea level, in North Korea. The nearest listed city is Ongjin, 18 km away.

SonghwaSinch’ŏn-ŭpHaejuSinwŏn-ŭp

Topography around T’aet’an-ŭp

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of T’aet’an-ŭp.

Within 3 km, the terrain around T’aet’an-ŭp has significant variations in elevation — a maximum elevation change of 291 m around an average of 41 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 503 m; within 80 km, large variations in elevation — a maximum elevation change of 1,037 m.

The land around T’aet’an-ŭp is covered by cropland (63%) and trees (23%) within 3 km, cropland (44%) and trees (40%) within 16 km, and water (51%) and cropland (27%) within 80 km.

3 km
291 m
16 km
503 m
80 km
1,037 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ongjin 18 km · Changyŏn 25 km · Kangnyŏng 27 km · Samch’ŏn 30 km · Songhwa 33 km · Sinch’ŏn-ŭp 34 km · Haeju 37 km · Sinwŏn-ŭp 44 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 T’aet’an-ŭp (38.0882°, 125.2983°, elevation 22 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).