Hongseong weather in August

In August, Hongseong sees average daytime highs of 30°C and overnight lows near 23°C, with 244 mm of rain across 15.5 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 26% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Hongseong's 11th-clearest and 9th-windiest month. For the whole year in context, see Hongseong's year-round climate.

Daytime high
30°
1st warmest
Overnight low
23°
12th coldest
Rainfall
244 mm
15.5 wet days
Daylight
13 h 24 min
5:55 AM – 7:20 PM
Cloud cover
65%
11th clearest
Wind
9 km/h
9th windiest
Solar energy
4.52 kWh/m²
Travel score
4.6
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 28°C by the end.

A typical August day in Hongseong reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93023
103023
113023
123023
133023
143023
153023
163023
173023
182923
192922
202922
212922
222922
232922
242922
252921
262821
272821
282821
292821
302821
312820

How August really feels in Hongseong

Once humidity and wind are folded in, August averages 19 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
19
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Hongseong 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 / -4°224.63.19.80.0
Feb / -3°294.31.710.60.5
Mar11° / 456.11.111.73.2
Apr18° / 777.30.112.96.1
May23° / 13°817.1013.97.3
Jun27° / 18°1228.7014.56.5
Jul29° / 22°26316014.24.8
Aug30° / 23°24415.5013.44.6
Sep26° / 17°1458.7012.26.9
Oct20° / 10°585.2011.17.2
Nov13° / 466.30.2103.9
Dec / -2°245.22.49.50.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34258
44357
54357
64357
74357
84357
94357
104357
114357
124258
134258
144258
154258
164159
174159
184159
194060
204060
213961
223961
234060
244060
254060
264060
274159
284159
294258
304258
314357

Chance of precipitation in August

Any precipitation

Hongseong gets around 244 mm of rain over 15.5 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 49% and peaks near 51% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
451
551
651
751
851
950
1050
1150
1250
1350
1450
1549
1649
1749
1849
1949
2049
2149
2249
2349
2449
2549
2648
2748
2847
2946
3046
3145

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1001135333
2001135234
3002135134
4002135035
5002145035
6002144934
7002154934
8003164933
9003174831
10003184930
11003204928
12003214927
13003224925
14014244923
15014264921
16014274820
17014294818
18015304716
19015324715
20016334613
21027344512
22028364410
2302937439
24131037418
25131138407
26141339386
27141439366
28151639345
29151839324
30162039314
31172238293

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 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 60 minutes over August. Sunrise moves from 5:43 AM to 6:08 AM, and sunset from 7:36 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:437:36
213.95:447:35
313.85:447:34
413.85:457:33
513.85:467:32
613.75:477:31
713.75:487:30
813.75:497:29
913.65:497:28
1013.65:507:27
1113.65:517:26
1213.55:527:25
1313.55:537:23
1413.55:547:22
1513.45:547:21
1613.45:557:20
1713.45:567:18
1813.35:577:17
1913.35:587:16
2013.35:597:15
2113.25:597:13
2213.26:007:12
2313.26:017:10
2413.16:027:09
2513.16:037:08
2613.06:047:06
2713.06:047:05
2813.06:057:03
2912.96:067:02
3012.96:077:01
3112.96:086:59

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.52 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.93 kWh/m² in May across the year — August's 4.52 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.6Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in August

Hazard calendar for Hongseong

In seasonPeak

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

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

Hongseong'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 Hongseong?

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

4.6
Sightseeing
7th-best month of the year
6.0
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Hongseong for sightseeing.

What to pack for Hongseong in August

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

In August, Hongseong sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Hongseong in August

The nearest coast averages about 25°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 26 km away) is warmest in August at about 25°C and coldest in February near 5°C.

It's comfortable for a long swim from Jul 4 to Oct 7 — about 3.2 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan7Bracing
Feb5Bracing
Mar6Bracing
Apr8Bracing
May12Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Hongseong in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hongseong peaks around July 24 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 24UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Hongseong 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 Hongseong is worst in March — around 92 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (July, 46 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 1391 µg/m³Jul 2246 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb85Unhealthy
Mar92Unhealthy
Apr75Unhealthy
May62Unhealthy
Jun57Unhealthy
Jul46Poor
Aug47Poor
Sep61Unhealthy
Oct74Unhealthy
Nov79Unhealthy
Dec73Unhealthy
Location & terrain

Where is Hongseong?

Hongseong sits at 36.6°N, 126.7°E, 31 m above sea level, in South Korea. The nearest listed city is Yesan, 18 km away.

AsanBuyeoGongjuTaesal-li

Topography around Hongseong

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

Within 3 km, the terrain around Hongseong has only modest variations in elevation — a maximum elevation change of 215 m around an average of 52 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 780 m; within 80 km, large variations in elevation — a maximum elevation change of 847 m.

The land around Hongseong is covered by cropland (36%), trees (32%) and artificial surfaces (25%) within 3 km, trees (50%) and cropland (36%) within 16 km, and water (39%) and trees (32%) within 80 km.

3 km
215 m
16 km
780 m
80 km
847 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Yesan 18 km · Seosan 28 km · Boryeong 29 km · Tangjin 33 km · Asan 36 km · Buyeo 42 km · Gongju 44 km · Taesal-li 45 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 Hongseong (36.6009°, 126.665°, elevation 31 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).