Kosan weather in August

In August, Kosan sees average daytime highs of 26°C and overnight lows near 18°C, with 249 mm of rain across 16.7 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 16% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Kosan's 11th-clearest and 9th-windiest month. For the whole year in context, see Kosan's year-round climate.

Daytime high
26°
1st warmest
Overnight low
18°
12th coldest
Rainfall
249 mm
16.7 wet days
Daylight
13 h 30 min
5:49 AM – 7:20 PM
Cloud cover
72%
11th clearest
Wind
8 km/h
9th windiest
Solar energy
4.08 kWh/m²
Travel score
5.6
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 24°C by the end.

A typical August day in Kosan reaches about 26°C in the afternoon and slips back to 18°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12620
22620
32620
42620
52620
62620
72620
82620
92619
102619
112619
122619
132619
142619
152619
162619
172619
182618
192518
202518
212518
222518
232517
242517
252517
262517
272417
282417
292416
302416
312416

How August really feels in Kosan

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kosan weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -14°254.65.49.60.0
Feb / -11°304.94.910.50.0
Mar / -4°447.35.411.71.0
Apr14° / 7282134.4
May20° / 1049.5014.16.4
Jun23° / 14°12511.5014.76.4
Jul25° / 18°26717.8014.45.4
Aug26° / 18°24916.7013.55.6
Sep22° / 12°1258.8012.36.6
Oct16° / 536.20.2115.6
Nov / -2°507.63.29.91.3
Dec / -10°305.14.99.30.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22773
32773
42773
52971
63070
73070
83070
93070
103070
113070
123169
133169
143169
153268
163268
173268
183169
193268
203268
213367
223367
233466
243565
253565
263664
273763
283862
293862
303862
313961

Chance of precipitation in August

Any precipitation

Kosan gets around 249 mm of rain over 16.7 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
257
357
457
557
656
756
855
955
1054
1154
1254
1353
1453
1553
1653
1753
1853
1953
2053
2153
2253
2352
2452
2552
2651
2750
2849
2948
3047
3146

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 60% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
102144934
202144934
302154935
402154835
502154835
602164735
702174634
802184633
903194532
1003214531
1103224530
1204234528
1304254427
1405264425
1506284323
1606304321
1707314120
1818334018
1919343916
20110353815
21212373713
22213383611
23314383510
2431639339
2541740327
2641940306
2752141285
2862241265
2972441244
3082640233
3192840213

Wind in August

Winds average 8 km/h in August.

Across August, 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.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 min at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over August. Sunrise moves from 5:35 AM to 6:02 AM, and sunset from 7:38 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:357:38
214.05:367:37
314.05:377:36
414.05:387:35
513.95:387:34
613.95:397:33
713.95:407:31
813.85:417:30
913.85:427:29
1013.75:437:28
1113.75:447:27
1213.75:457:25
1313.65:467:24
1413.65:477:23
1513.65:487:22
1613.55:497:20
1713.55:497:19
1813.55:507:18
1913.45:517:16
2013.45:527:15
2113.35:537:13
2213.35:547:12
2313.35:557:10
2413.25:567:09
2513.25:577:07
2613.15:587:06
2713.15:597:04
2813.16:007:03
2913.06:017:01
3013.06:027:00
3112.96:026:58

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.08 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.72 kWh/m² in May across the year — August's 4.08 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.0Bright
214.0Bright
224.0Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.0Bright
284.0Bright
294.1Bright
304.1Bright
314.1Bright
Planning a trip in August

Hazard calendar for Kosan

In seasonPeak

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

Kosan sits in the Pacific typhoon belt; the season peaks July–October.

Kosan'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 August a good time to visit Kosan?

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

5.6
Sightseeing
4th-best month of the year
5.2
Beach & pool
1st-best month of the year

August is a reasonable time to visit Kosan for sightseeing.

What to pack for Kosan in August

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

In August, Kosan sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 17 days see rain.

rain gearlight clothes

Sea temperature near Kosan in August

The nearest coast averages about 24°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 35 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 1 to Sep 30 — about 3 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan5Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug24Warm
Sep22Refreshing
Oct18Cool
Nov13Bracing
Dec9Bracing

UV index in Kosan in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kosan peaks around August 18 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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateLowAug 18UV 8Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun8Very high
Jul7High
Aug9Very high
Sep7Very high
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Kosan in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Kosan is worst in March — around 67 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (July, 28 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorMar 1467 µg/m³Jul 2428 µg/m³
PM2.5 (µg/m³)Level
Jan66Unhealthy
Feb63Unhealthy
Mar67Unhealthy
Apr59Unhealthy
May47Poor
Jun36Poor
Jul28Moderate
Aug28Moderate
Sep34Moderate
Oct49Poor
Nov53Poor
Dec52Poor
Location & terrain

Where is Kosan?

Kosan sits at 38.9°N, 127.4°E, 195 m above sea level, in North Korea. The nearest listed city is Hoeyang, 22 km away.

WŏnsanT’ongch’ŏn-ŭpKowŏn-ŭpCheorwonHwacheonYanggu

Topography around Kosan

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

Within 3 km, the terrain around Kosan has significant variations in elevation — a maximum elevation change of 366 m around an average of 215 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,492 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,626 m.

The land around Kosan is covered by cropland (54%) and trees (24%) within 3 km, trees (75%) within 16 km, and trees (58%) within 80 km.

3 km
366 m
16 km
1,492 m
80 km
1,626 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Hoeyang 22 km · Anbyŏn-ŭp 23 km · Wŏnsan 33 km · T’ongch’ŏn-ŭp 42 km · Kowŏn-ŭp 66 km · Cheorwon 74 km · Hwacheon 87 km · Yanggu 97 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 Kosan (38.8558°, 127.4181°, elevation 195 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).