Gangneung weather in August

In August, Gangneung sees average daytime highs of 26°C and overnight lows near 20°C, with 229 mm of rain across 17.3 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 24°C by the end. The sky is clear or mostly clear about 20% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 hours at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Gangneung's 11th-clearest and 10th-windiest month. For the whole year in context, see Gangneung's year-round climate.

Daytime high
26°
1st warmest
Overnight low
20°
12th coldest
Rainfall
229 mm
17.3 wet days
Daylight
13 h 30 min
5:45 AM – 7:13 PM
Cloud cover
70%
11th clearest
Wind
8 km/h
10th windiest
Solar energy
4.45 kWh/m²
Travel score
5.5
out of 10

Gangneung is city in South Korea.

Density
200/km²
people per km²
Founded
~129 BCE

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 27°C in the first days to 24°C by the end.

A typical August day in Gangneung reaches about 26°C in the afternoon and slips back to 20°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 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)
12721
22721
32721
42721
52721
62721
72721
82721
92721
102621
112621
122620
132620
142620
152620
162620
172620
182620
192520
202519
212519
222519
232519
242519
252519
262418
272418
282418
292418
302418
312418

How August really feels in Gangneung

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.

Gangneung weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -8°445.75.69.70.0
Feb / -7°445.7510.50.0
Mar / -1°689.15.911.71.4
Apr15° / 818.81.412.94.6
May20° / 11°878.90146.4
Jun23° / 16°11911.4014.66.4
Jul25° / 20°21915.9014.35.7
Aug26° / 20°22917.3013.55.5
Sep22° / 14°18612.2012.36.1
Oct17° / 828.50.1115.7
Nov10° / 637.51.8102.5
Dec / -5°365.33.89.40.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43565
53664
63664
73565
83565
93664
103664
113565
123367
133367
143367
153268
163268
173367
183367
193367
203268
213169
223268
233268
243268
253268
263268
273367
283367
293367
303565
313565

Chance of precipitation in August

Any precipitation

Gangneung gets around 229 mm of rain over 17.3 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 58% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
452
552
652
753
853
954
1054
1155
1255
1356
1456
1557
1657
1757
1858
1958
2058
2158
2258
2358
2458
2557
2657
2756
2856
2955
3055
3154

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 44% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
101124640
201124641
302124541
402124542
502124542
602124442
702124441
802134441
902144540
1002144538
1102154637
1202164735
1303174733
1403184831
1503194829
1604214827
1704224825
1805234823
1906254821
2007264719
2118284717
2219294616
23110304514
24111324312
25113334211
26214344010
2721635389
2821736368
2931937347
3032138326
3142338305

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 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
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 hours 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 66 minutes over August. Sunrise moves from 5:31 AM to 5:58 AM, and sunset from 7:30 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:317:30
213.95:327:29
313.95:337:28
413.95:347:27
513.85:357:26
613.85:367:25
713.85:377:23
813.75:387:22
913.75:387:21
1013.75:397:20
1113.65:407:19
1213.65:417:18
1313.65:427:16
1413.55:437:15
1513.55:447:14
1613.55:457:13
1713.45:457:11
1813.45:467:10
1913.45:477:09
2013.35:487:07
2113.35:497:06
2213.25:507:05
2313.25:517:03
2413.25:527:02
2513.15:527:00
2613.15:536:59
2713.15:546:57
2813.05:556:56
2913.05:566:54
3012.95:576:53
3112.95:586:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.45 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 5.92 kWh/m² in May across the year — August's 4.45 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
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in August

Hazard calendar for Gangneung

In seasonPeak

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

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

Gangneung'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 Gangneung?

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

5.5
Sightseeing
6th-best month of the year
5.2
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Gangneung for sightseeing.

What to pack for Gangneung in August

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

In August, Gangneung sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 17 days see rain.

rain gearlight clothes

Sea temperature near Gangneung 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 14 km away) is warmest in August at about 24°C and coldest in February near 9°C.

It's comfortable for a long swim from Jul 1 to Oct 7 — about 3.3 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar9Bracing
Apr12Bracing
May14Bracing
Jun18Cool
Jul22Refreshing
Aug24Warm
Sep22Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Gangneung in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gangneung peaks around August 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highHighModerateAug 16UV 9Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May7High
Jun8Very high
Jul8Very high
Aug10Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Gangneung 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 Gangneung is worst in March — around 40 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (September, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 2239 µg/m³Sep 1817 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb30Moderate
Mar40Poor
Apr38Poor
May35Moderate
Jun30Moderate
Jul24Moderate
Aug21Moderate
Sep17Moderate
Oct20Moderate
Nov24Moderate
Dec22Moderate
Location & terrain

Where is Gangneung?

Gangneung sits at 37.8°N, 128.9°E, 77 m above sea level, in South Korea. The nearest listed city is Jumunjin, 16 km away.

SantyokuSokchoPyeongchangT’aebaekNeietsuKosong

Topography around Gangneung

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

Within 3 km, the terrain around Gangneung has only modest variations in elevation — a maximum elevation change of 163 m around an average of 48 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,166 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,646 m.

The land around Gangneung is covered by trees (46%) and artificial surfaces (36%) within 3 km, trees (59%) and water (26%) within 16 km, and trees (65%) and water (30%) within 80 km.

3 km
163 m
16 km
1,166 m
80 km
1,646 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Jumunjin 16 km · Donghae City 31 km · Santyoku 44 km · Sokcho 56 km · Pyeongchang 60 km · T’aebaek 65 km · Neietsu 73 km · Kosong 78 km

South Korea travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
220 V · 60 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$36,227
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.5
per 100k, 2023
Road deaths
8.6
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 522
Religion
none 60%Protestant 17%Buddhist 16%Catholic 6%

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 Gangneung (37.7527°, 128.8724°, elevation 77 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).