Seoul weather in June

In June, Seoul sees average daytime highs of 27°C and overnight lows near 18°C, with 126 mm of rain across 8.8 wet days and about 14.5 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 27°C by the end. The sky is clear or mostly clear about 29% of the time in June, and the air most often feels humid.

Daylight stretches from about 14 h 24 min at the start of June to 14 h 36 min by month's end. Set against the rest of the year, June is Seoul's 10th-clearest and 11th-windiest month. For the whole year in context, see Seoul's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
126 mm
8.8 wet days
Daylight
14 h 36 min
5:15 AM – 7:50 PM
Cloud cover
62%
10th clearest
Wind
8 km/h
11th windiest
Solar energy
5.61 kWh/m²
Travel score
6.6
out of 10

Seoul is capital and largest city of South Korea.

Air quality
Elevated
PM2.5 21 µg/m³ · 2020
Density
17,099/km²
people per km²
Founded
1395

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 27°C by the end.

A typical June day in Seoul reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, June runs about 4°C warmer than May and about 2°C cooler than July.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12515
22615
32616
42616
52616
62616
72616
82617
92617
102617
112717
122717
132717
142718
152718
162718
172718
182718
192718
202719
212719
222719
232719
242719
252719
262720
272720
282720
292720
302720

How June really feels in Seoul

Once humidity and wind are folded in, June 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

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

Seoul weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -7°203.62.29.70.0
Feb / -5°2541.810.60.3
Mar11° / 386.2111.72.9
Apr18° / 707.3012.96.0
May23° / 12°967.70147.2
Jun27° / 18°1268.8014.56.6
Jul28° / 22°31416.5014.34.8
Aug29° / 22°25815.2013.44.8
Sep26° / 17°1247.6012.37.1
Oct20° / 555.30117.1
Nov12° / 477.10.4103.3
Dec / -5°234.81.59.50.1

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 14% of June, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
24951
34951
44852
54753
64852
74753
84654
94654
104654
114753
124654
134654
144654
154654
164555
174555
184555
194456
204357
214258
224159
234060
243961
253862
263763
273664
283565
293565
303367

Chance of precipitation in June

Any precipitation

Seoul gets around 126 mm of rain over 8.8 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 44% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
120
221
321
421
522
622
723
823
924
1024
1125
1225
1326
1427
1527
1628
1729
1830
1930
2031
2133
2234
2336
2437
2539
2640
2741
2842
2943
3044

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the humid band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
132432410
229432620
326422920
424423130
521413440
619403650
717393960
815374170
913364390
10113445100
11103246120
1283047140
1372848160
1462748191
1552548211
1652348241
1742147261
1842046291
1931845322
2031643353
2131541374
2221339405
2321237427
2421035449
2529334611
2618314713
2717284915
2816265017
2916245019
3015225121

Wind in June

Winds average 8 km/h in June.

Across June, 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.

051015151015202530
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

Sunrise & sunset in June

DaylightNight

Daylight runs from about 14 h 24 min at the start of June to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over June. Sunrise moves from 5:18 AM to 5:18 AM, and sunset from 7:41 PM to 7:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:187:41
214.45:177:42
314.45:177:43
414.45:177:43
514.55:167:44
614.55:167:45
714.55:167:45
814.55:167:46
914.55:157:46
1014.55:157:47
1114.55:157:47
1214.55:157:48
1314.65:157:48
1414.65:157:49
1514.65:157:49
1614.65:157:50
1714.65:157:50
1814.65:157:50
1914.65:157:51
2014.65:157:51
2114.65:157:51
2214.65:167:52
2314.65:167:52
2414.65:167:52
2514.65:167:52
2614.65:177:52
2714.65:177:52
2814.65:177:52
2914.65:187:52
3014.65:187:52

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.61 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.79 kWh/m² in May across the year — June's 5.61 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Intense
56.0Bright
66.0Bright
76.0Bright
85.9Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.7Bright
165.7Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.4Bright
225.3Bright
235.3Bright
245.2Bright
255.1Bright
265.0Bright
275.0Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in June

Hazard calendar for Seoul

In seasonPeak

In June, Seoul sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

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

Seoul'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 June a good time to visit Seoul?

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

6.6
Sightseeing
4th-best month of the year
6.6
Beach & pool
1st-best month of the year

June is a reasonable time to visit Seoul for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Seoul in June

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

In June, Seoul sees daytime highs around 27°C and nights near 18°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Seoul in June

The nearest coast averages about 17°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 38 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 11 to Oct 13 — about 3.1 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun17Cool
Jul21Refreshing
Aug24Refreshing
Sep23Refreshing
Oct20Cool
Nov15Bracing
Dec10Bracing

UV index in Seoul in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June 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 Seoul peaks around July 22 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 22UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May5High
Jun7High
Jul8Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Seoul in June

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Seoul is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (August, 14 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Seoul's WHO annual average of 21 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1327 µg/m³Aug 1214 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb25Moderate
Mar27Moderate
Apr22Moderate
May19Moderate
Jun17Moderate
Jul15Moderate
Aug14Moderate
Sep19Moderate
Oct23Moderate
Nov24Moderate
Dec23Moderate
Location & terrain

Where is Seoul?

Seoul sits at 37.6°N, 127.0°E, 38 m above sea level, in South Korea. The nearest listed city is Gwangmyeong, 14 km away.

Topography around Seoul

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

Within 3 km, the terrain around Seoul has significant variations in elevation — a maximum elevation change of 302 m around an average of 71 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 777 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,443 m.

The land around Seoul is covered by artificial surfaces (69%) and trees (30%) within 3 km, artificial surfaces (51%) and trees (40%) within 16 km, and trees (48%) within 80 km.

3 km
302 m
16 km
777 m
80 km
1,443 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Gwangmyeong 14 km · Siheungdong 14 km · Guri-si 15 km · Goyang-si 16 km · Bucheon-si 19 km · Anyang-si 20 km · Seongnam-si 20 km · Hanam 20 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 Seoul (37.566°, 126.9784°, elevation 38 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).