Goyang-si weather in July

In July, Goyang-si sees average daytime highs of 28°C and overnight lows near 22°C, with 313 mm of rain across 16.3 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 28°C in the first days to 30°C by the end. The sky is clear or mostly clear about 17% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 36 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Goyang-si's 12th-clearest and 6th-windiest month. For the whole year in context, see Goyang-si's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
22°
11th coldest
Rainfall
313 mm
16.3 wet days
Daylight
14 h 24 min
5:27 AM – 7:49 PM
Cloud cover
73%
12th clearest
Wind
9 km/h
6th windiest
Solar energy
4.35 kWh/m²
Travel score
4.9
out of 10

Goyang-si is city in Gyeonggi Province, South Korea.

Density
3,972/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 28°C in the first days to 30°C by the end.

A typical July day in Goyang-si reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, July runs about 2°C warmer than June and about 1°C cooler than August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12820
22821
32821
42821
52821
62821
72821
82821
92821
102821
112822
122822
132822
142822
152822
162822
172822
182822
192922
202923
212923
222923
232923
242923
252923
262923
272923
282923
293023
303023
313024

How July really feels in Goyang-si

Once humidity and wind are folded in, July averages 9 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
9
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Goyang-si 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 daysSnow daysDaylight (hours)Travel score
Jan / -7°183.52.39.70.0
Feb / -5°233.91.710.50.3
Mar11° / 355.70.911.72.9
Apr17° / 667.20.112.95.9
May23° / 13°9980147.2
Jun27° / 18°1259014.66.6
Jul28° / 22°31316.3014.34.9
Aug29° / 22°26414.9013.54.7
Sep26° / 17°1207.9012.37.0
Oct20° / 525.30117.1
Nov11° / 4770.3103.2
Dec / -5°224.81.69.40.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of July, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23466
33466
43367
53268
63268
73169
83169
93169
103169
113169
123070
132971
142971
153070
163070
173070
183070
193070
203169
213169
223268
233268
243466
253466
263466
273565
283664
293763
303862
313862

Chance of precipitation in July

Any precipitation

Goyang-si gets around 313 mm of rain over 16.3 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 52% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
144
244
345
446
547
648
749
850
950
1051
1152
1252
1353
1454
1555
1655
1756
1856
1956
2056
2156
2255
2355
2455
2555
2655
2755
2854
2954
3054
3154

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
131657240
231555261
331354291
421254311
521153331
621150352
721049372
821047392
92946413
102944423
112842444
122840465
132738476
142736497
152634508
161632529
1715305311
1815285412
1914265514
2014255515
2113235617
2213215619
2312205621
2412185623
2512175525
2611155627
2711145529
2801145431
2901135333
3001125235
3101125136

Wind in July

Winds average 9 km/h in July.

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

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
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 July

DaylightNight

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

Days shrink by about 36 minutes over July. Sunrise moves from 5:19 AM to 5:39 AM, and sunset from 7:53 PM to 7:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:197:53
214.65:197:53
314.65:207:53
414.55:207:53
514.55:217:53
614.55:217:53
714.55:227:52
814.55:227:52
914.55:237:52
1014.55:237:52
1114.55:247:51
1214.45:257:51
1314.45:257:51
1414.45:267:50
1514.45:277:50
1614.45:277:49
1714.35:287:49
1814.35:297:48
1914.35:297:48
2014.35:307:47
2114.35:317:46
2214.25:327:46
2314.25:327:45
2414.25:337:44
2514.25:347:44
2614.15:357:43
2714.15:367:42
2814.15:367:41
2914.15:377:40
3014.05:387:39
3114.05:397:39

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.35 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 — July's 4.35 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in July

Hazard calendar for Goyang-si

In seasonPeak

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

Goyang-si sits in the Pacific typhoon belt; the season peaks July–October.

Goyang-si'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 July a good time to visit Goyang-si?

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

4.9
Sightseeing
6th-best month of the year
5.8
Beach & pool
4th-best month of the year

July is a reasonable time to visit Goyang-si for sightseeing.

What to pack for Goyang-si in July

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

In July, Goyang-si sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 16 days see rain.

light clothesrain gear

Sea temperature near Goyang-si in July

The nearest coast averages about 21°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 36 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 Goyang-si in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Goyang-si 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 Goyang-si 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 Goyang-si is worst in March — around 160 µg/m³ PM2.5 (very unhealthy), about 2.0× the cleanest month (August, 81 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyVery unhealthyUnhealthyMar 13158 µg/m³Aug 1282 µg/m³
PM2.5 (µg/m³)Level
Jan145Unhealthy
Feb149Unhealthy
Mar160Very unhealthy
Apr127Unhealthy
May111Unhealthy
Jun98Unhealthy
Jul88Unhealthy
Aug81Unhealthy
Sep110Unhealthy
Oct132Unhealthy
Nov142Unhealthy
Dec133Unhealthy
Location & terrain

Where is Goyang-si?

Goyang-si sits at 37.7°N, 126.8°E, 19 m above sea level, in South Korea. The nearest listed city is Gimpo-si, 11 km away.

Topography around Goyang-si

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

Within 3 km, the terrain around Goyang-si has only modest variations in elevation — a maximum elevation change of 98 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 778 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,443 m.

The land around Goyang-si is covered by trees (41%) and artificial surfaces (36%) within 3 km, trees (39%) and artificial surfaces (36%) within 16 km, and trees (43%) and water (22%) within 80 km.

3 km
98 m
16 km
778 m
80 km
1,443 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Gimpo-si 11 km · Seoul 16 km · Bucheon-si 18 km · Gwangmyeong 20 km · Uijeongbu-si 21 km · Munsan 23 km · Siheungdong 24 km · Incheon 25 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 Goyang-si (37.6564°, 126.835°, elevation 19 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).