Suwon weather in July

In July, Suwon sees average daytime highs of 28°C and overnight lows near 22°C, with 279 mm of rain across 15.3 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 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 20% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 30 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Suwon's 12th-clearest and 8th-windiest month. For the whole year in context, see Suwon's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
22°
11th coldest
Rainfall
279 mm
15.3 wet days
Daylight
14 h 18 min
5:28 AM – 7:48 PM
Cloud cover
71%
12th clearest
Wind
9 km/h
8th windiest
Solar energy
4.43 kWh/m²
Travel score
5.1
out of 10

Suwon is capital of Gyeonggi-do, South Korea.

Density
10,195/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 27°C in the first days to 30°C by the end.

A typical July day in Suwon 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 31°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)
12720
22720
32720
42721
52721
62821
72821
82821
92821
102821
112821
122822
132822
142822
152822
162822
172822
182822
192922
202922
212923
222923
232923
242923
252923
262923
272923
283023
293023
303023
313023

How July really feels in Suwon

Once humidity and wind are folded in, July averages 10 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
10
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.

Suwon 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 / -6°213.82.39.70.0
Feb / -4°274.11.710.60.3
Mar11° / 396.1111.72.9
Apr17° / 697.1012.95.9
May23° / 12°887.10147.3
Jun26° / 18°1187.6014.56.8
Jul28° / 22°27915.3014.35.1
Aug29° / 22°23114013.45.0
Sep26° / 17°1247.8012.37.0
Oct20° / 10°555.20117.2
Nov12° / 477.30.3103.5
Dec / -4°235.11.69.50.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of July, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23268
33169
43070
52971
63070
72971
82971
92971
103070
112971
122971
133070
143070
153070
163169
173169
183268
193367
203466
213466
223565
233763
243763
253862
263961
274060
284159
294258
304258
314357

Chance of precipitation in July

Any precipitation

Suwon gets around 279 mm of rain over 15.3 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 49% and peaks near 52% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
141
243
344
445
546
647
748
848
949
1049
1149
1250
1350
1451
1551
1651
1752
1852
1951
2051
2151
2250
2350
2450
2549
2649
2749
2849
2949
3049
3149

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1142248241
2142148261
3031949281
4031748301
5021648322
6021547342
7021347352
8021246373
9021245383
10021144404
11021043414
1202941425
1302840446
1402738457
1502736478
1602635489
17025335010
18024315112
19024295213
20013275514
21013265515
22012245617
23012225718
24012205720
25011195722
26011175823
27011165725
28001155826
29001145827
30001145728
31001135729

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 10 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
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 30 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 30 minutes over July. Sunrise moves from 5:19 AM to 5:39 AM, and sunset from 7:51 PM to 7:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.55:197:51
214.55:207:51
314.55:207:51
414.55:207:51
514.55:217:51
614.55:217:51
714.55:227:51
814.55:237:50
914.55:237:50
1014.45:247:50
1114.45:247:50
1214.45:257:49
1314.45:267:49
1414.45:267:48
1514.45:277:48
1614.35:287:48
1714.35:287:47
1814.35:297:47
1914.35:307:46
2014.25:307:45
2114.25:317:45
2214.25:327:44
2314.25:337:43
2414.25:337:43
2514.15:347:42
2614.15:357:41
2714.15:367:40
2814.15:377:40
2914.05:377:39
3014.05:387:38
3114.05:397:37

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.43 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.85 kWh/m² in May across the year — July's 4.43 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in July

Hazard calendar for Suwon

In seasonPeak

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

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

Suwon'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 Suwon?

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

5.1
Sightseeing
6th-best month of the year
5.9
Beach & pool
4th-best month of the year

July is a reasonable time to visit Suwon for sightseeing.

What to pack for Suwon in July

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

In July, Suwon sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 15 days see rain.

light clothesrain gear

Sea temperature near Suwon 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 35 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 Suwon 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 Suwon peaks around August 11 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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 highHighModerateAug 11UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Suwon 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 Suwon 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 Suwon?

Suwon sits at 37.3°N, 127.0°E, 58 m above sea level, in South Korea. The nearest listed city is Uiwang, 10 km away.

Topography around Suwon

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

Within 3 km, the terrain around Suwon has only modest variations in elevation — a maximum elevation change of 224 m around an average of 70 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 602 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,218 m.

The land around Suwon is covered by artificial surfaces (66%) and trees (26%) within 3 km, trees (51%) and artificial surfaces (35%) within 16 km, and trees (48%) within 80 km.

3 km
224 m
16 km
602 m
80 km
1,218 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Uiwang 10 km · Gunpo 10 km · Anyang-si 13 km · Osan 16 km · Ansan 17 km · Hwaseong-si 19 km · Siheungdong 20 km · Seongnam-si 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 Suwon (37.2911°, 127.0089°, elevation 58 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).