Hyesan weather in August

In August, Hyesan sees average daytime highs of 23°C and overnight lows near 14°C, with 136 mm of rain across 14.2 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 19% of the time in August, and the air most often feels humid.

Daylight stretches from about 14 h 18 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Hyesan's 10th-clearest and 12th-windiest month. For the whole year in context, see Hyesan's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
136 mm
14.2 wet days
Daylight
13 h 42 min
5:41 AM – 7:22 PM
Cloud cover
67%
10th clearest
Wind
6 km/h
12th windiest
Solar energy
4.65 kWh/m²
Travel score
6.0
out of 10

Hyesan is city in North Korea.

Density
696/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 21°C by the end.

A typical August day in Hyesan reaches about 23°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 19°C and 26°C. Set against its neighbours, August runs on par with July and about 5°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12415
22415
32415
42415
52415
62415
72415
82415
92415
102415
112415
122415
132414
142314
152314
162314
172314
182314
192313
202313
212213
222213
232212
242212
252212
262212
272212
282111
292111
302111
312111

How August really feels in Hyesan

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.

Hyesan weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-10° / -22°113.259.40.0
Feb-6° / -19°184.66.110.30.0
Mar / -11°337.98.511.70.0
Apr10° / -2°5610.57.113.12.0
May16° / 9514.9214.34.5
Jun20° / 10°9715.5014.95.4
Jul23° / 14°16417.3014.75.6
Aug23° / 14°13614.2013.76.0
Sep18° / 717.90.112.36.1
Oct11° / -1°437.6310.92.9
Nov / -10°387.77.49.70.0
Dec-8° / -20°185.279.10.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23466
33466
43664
53664
63763
73763
83862
93862
103862
113862
123862
133961
143961
153961
163961
173961
183862
193961
203961
213961
224060
234060
244060
254258
264258
274258
284357
294456
304456
314555

Chance of precipitation in August

Any precipitation

Hyesan gets around 136 mm of rain over 14.2 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 46% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
156
256
356
455
555
654
753
852
951
1051
1150
1249
1348
1447
1546
1646
1745
1844
1943
2042
2141
2241
2340
2439
2539
2638
2738
2837
2937
3036
3136

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14285513
24285612
35285512
45295412
56295411
67305211
78305111
89315010
910324810
1012324610
1113334410
121534419
131735399
141936378
152236348
162437327
172737297
183037276
193337246
203637225
213936214
224236193
234535173
244834162
255133142
265432131
275631121
285929111
296128101
30642691
31672481

Wind in August

Winds average 6 km/h in August, the calmest month.

Across August, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 18 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over August. Sunrise moves from 5:26 AM to 5:57 AM, and sunset from 7:41 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:267:41
214.25:277:40
314.25:287:39
414.15:297:37
514.15:307:36
614.15:317:35
714.05:327:34
814.05:337:33
914.05:347:31
1013.95:357:30
1113.95:367:29
1213.85:377:27
1313.85:387:26
1413.85:397:25
1513.75:407:23
1613.75:417:22
1713.65:427:20
1813.65:437:19
1913.55:447:17
2013.55:457:16
2113.55:467:14
2213.45:477:13
2313.45:487:11
2413.35:497:09
2513.35:517:08
2613.25:527:06
2713.25:537:05
2813.25:547:03
2913.15:557:01
3013.15:567:00
3113.05:576:58

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.65 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.68 kWh/m² in May across the year — August's 4.65 kWh/m² falls in the middle.

024151015202531
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
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Hyesan

In seasonPeak

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

Hyesan's rainy season runs May–August, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Hyesan?

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

6.0
Sightseeing
2nd-best month of the year
4.6
Beach & pool
1st-best month of the year

August is a reasonable time to visit Hyesan for sightseeing.

What to pack for Hyesan in August

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

In August, Hyesan sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

UV index in Hyesan 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 Hyesan peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighVery highModerateLowAug 18UV 8Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May7Very high
Jun7Very high
Jul6High
Aug9Very high
Sep7Very high
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Hyesan 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 Hyesan is worst in March — around 36 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (August, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateMar 2136 µg/m³Aug 1615 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb29Moderate
Mar36Poor
Apr34Moderate
May29Moderate
Jun22Moderate
Jul18Moderate
Aug15Moderate
Sep18Moderate
Oct26Moderate
Nov23Moderate
Dec25Moderate
Location & terrain

Where is Hyesan?

Hyesan sits at 41.4°N, 128.2°E, 709 m above sea level, in North Korea. The nearest listed city is Hyesan-dong, 1.0 km away.

Kapsan-ŭpSamjiyŏn-ŭpYŏnsa-ŭpChangam-ch’onKiljuMyŏngch’ŏnHwasŏng

Topography around Hyesan

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

Within 3 km, the terrain around Hyesan has significant variations in elevation — a maximum elevation change of 366 m around an average of 790 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 990 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.

The land around Hyesan is covered by cropland (33%), artificial surfaces (27%) and trees (22%) within 3 km, trees (48%) and grassland (28%) within 16 km, and trees (85%) within 80 km.

3 km
366 m
16 km
990 m
80 km
2,277 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Hyesan-dong 1.0 km · Kapsan-ŭp 36 km · Samjiyŏn-ŭp 46 km · Yŏnsa-ŭp 89 km · Changam-ch’on 102 km · Kilju 108 km · Myŏngch’ŏn 111 km · Hwasŏng 111 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 Hyesan (41.4017°, 128.1778°, elevation 709 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).