Busan weather in July

In July, Busan sees average daytime highs of 25°C and overnight lows near 23°C, with 228 mm of rain across 11.8 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 26°C by the end. The sky is clear or mostly clear about 26% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 18 min at the start of July to 13 h 48 min by month's end. Set against the rest of the year, July is Busan's 11th-clearest and 10th-windiest month. For the whole year in context, see Busan's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
228 mm
11.8 wet days
Daylight
14 h 06 min
5:25 AM – 7:34 PM
Cloud cover
67%
11th clearest
Wind
20 km/h
10th windiest
Solar energy
5.05 kWh/m²
Travel score
6.4
out of 10

Busan is metropolitan city of South Korea.

Air quality
Elevated
PM2.5 17 µg/m³ · 2020
Density
4,267/km²
people per km²

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 26°C by the end.

A typical July day in Busan reaches about 25°C in the afternoon and slips back to 23°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, July runs about 4°C warmer than June and about 2°C cooler than August.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12321
22321
32321
42321
52322
62322
72322
82322
92422
102422
112422
122422
132423
142423
152423
162423
172523
182523
192523
202523
212524
222524
232524
242624
252624
262624
272624
282624
292625
302625
312625

How July really feels in Busan

Once humidity and wind are folded in, July 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

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

Busan weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 374.79.91.4
Feb / 475.110.72.0
Mar12° / 897.911.73.2
Apr15° / 12°1218.112.94.7
May18° / 16°1307.613.86.1
Jun21° / 19°1679.314.36.4
Jul25° / 23°22811.814.16.4
Aug27° / 25°18111.113.36.5
Sep24° / 22°1598.812.27.0
Oct20° / 17°724.511.17.4
Nov15° / 11°525.410.25.3
Dec10° / 334.19.72.7

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 11% of July, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22773
32773
42773
52773
62872
72872
82971
92971
103070
113169
123268
133367
143466
153565
163565
173763
183763
193961
204060
214159
224357
234456
244555
254654
264852
274852
284951
295050
305149
315149

Chance of precipitation in July

Any precipitation

Busan gets around 228 mm of rain over 11.8 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 48% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
246
347
447
548
648
747
847
946
1046
1145
1244
1343
1442
1540
1639
1738
1836
1935
2034
2132
2231
2330
2429
2529
2628
2728
2828
2928
3028
3128

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
111055340
21953370
31851400
41848421
51746441
61744462
71741482
81639513
91637524
101635535
111633546
121631548
131629559
1415265711
1515245713
1615225715
1714215717
1814195620
1904175722
2004165525
2103155527
2203145330
2303135232
2402125135
2502114938
2602114741
2701104543
2801104346
290194149
300193951
310183853

Wind in July

Winds average 20 km/h in July.

Across July, daily wind ranges from about 20 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
620breezy
720breezy
820breezy
920breezy
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520breezy
1620breezy
1720breezy
1820light breeze
1920light breeze
2020light breeze
2120light breeze
2220light breeze
2320light breeze
2420light breeze
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920light breeze
3020light breeze
3120light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 18 min at the start of July to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 5:17 AM to 5:36 AM, and sunset from 7:37 PM to 7:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:177:37
214.35:187:37
314.35:187:37
414.35:187:37
514.35:197:37
614.35:197:37
714.35:207:37
814.35:207:37
914.35:217:36
1014.25:217:36
1114.25:227:36
1214.25:237:35
1314.25:237:35
1414.25:247:35
1514.25:247:34
1614.15:257:34
1714.15:267:34
1814.15:267:33
1914.15:277:33
2014.15:287:32
2114.15:287:31
2214.05:297:31
2314.05:307:30
2414.05:307:30
2514.05:317:29
2613.95:327:28
2713.95:337:27
2813.95:337:27
2913.95:347:26
3013.85:357:25
3113.85:367:24

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.05 kWh/m².

For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 5.88 kWh/m² in May across the year — July's 5.05 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.8Bright
114.8Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in July

Hazard calendar for Busan

In seasonPeak

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

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

Busan's rainy season runs April–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 July a good time to visit Busan?

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

6.4
Sightseeing
4th-best month of the year
5.6
Beach & pool
3rd-best month of the year

July is a reasonable time to visit Busan for sightseeing.

What to pack for Busan in July

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

In July, Busan sees daytime highs around 25°C and nights near 23°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Busan in July

The nearest coast averages about 23°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 17 to Nov 7 — about 4.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Busan in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Busan peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep9Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Busan in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Busan is worst in March — around 21 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (August, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Busan's WHO annual average of 17 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2121 µg/m³Aug 1913 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar21Moderate
Apr21Moderate
May20Moderate
Jun17Moderate
Jul14Moderate
Aug13Moderate
Sep14Moderate
Oct16Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is Busan?

Busan sits at 35.1°N, 129.0°E, 15 m above sea level, in South Korea. The nearest listed city is Kimhae, 20 km away.

ChangwonUngsangGeojeSinhyeonKyosai

Topography around Busan

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

Within 3 km, the terrain around Busan has significant variations in elevation — a maximum elevation change of 485 m around an average of 75 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 636 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,204 m.

The land around Busan is covered by artificial surfaces (50%), trees (26%) and water (21%) within 3 km, water (51%) and artificial surfaces (24%) within 16 km, and water (53%) and trees (36%) within 80 km.

3 km
485 m
16 km
636 m
80 km
1,204 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Kimhae 20 km · Gijang 23 km · Yangsan 27 km · Changwon 35 km · Ungsang 36 km · Geoje 44 km · Sinhyeon 44 km · Kyosai 49 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 Busan (35.1017°, 129.03°, elevation 15 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).