Ganghwa-gun weather in July

In July, Ganghwa-gun sees average daytime highs of 27°C and overnight lows near 22°C, with 303 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 26°C in the first days to 29°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 36 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Ganghwa-gun's 12th-clearest and 8th-windiest month. For the whole year in context, see Ganghwa-gun's year-round climate.

Daytime high
27°
2nd warmest
Overnight low
22°
11th coldest
Rainfall
303 mm
15.3 wet days
Daylight
14 h 24 min
5:28 AM – 7:51 PM
Cloud cover
71%
12th clearest
Wind
11 km/h
8th windiest
Solar energy
4.46 kWh/m²
Travel score
5.4
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 29°C by the end.

A typical July day in Ganghwa-gun reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°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)
12620
22621
32621
42621
52721
62721
72721
82721
92721
102721
112722
122722
132722
142722
152722
162722
172722
182722
192822
202823
212823
222823
232823
242823
252823
262823
272823
282923
292924
302924
312924

How July really feels in Ganghwa-gun

Once humidity and wind are folded in, July averages 4 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
4
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.

Ganghwa-gun 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°173.52.19.70.0
Feb / -4°233.81.510.50.1
Mar / 335.20.711.72.3
Apr16° / 637012.95.3
May21° / 13°967.70146.9
Jun25° / 18°1208.7014.66.9
Jul27° / 22°30315.3014.35.4
Aug29° / 23°25114.2013.55.2
Sep25° / 18°1166.9012.37.2
Oct19° / 11°525.10117.0
Nov11° / 477.10.4103.1
Dec / -3°224.71.19.40.1

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 15% of July, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43565
53565
63565
73565
83466
93466
103466
113466
123367
133268
143268
153268
163268
173268
183268
193268
203466
213466
223466
233664
243664
253763
263862
273862
283862
294060
304060
314159

Chance of precipitation in July

Any precipitation

Ganghwa-gun gets around 303 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 53% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
140
241
342
443
544
645
745
846
947
1047
1148
1249
1349
1450
1551
1651
1752
1852
1952
2052
2152
2253
2353
2453
2553
2653
2753
2853
2953
3053
3152

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 48% 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 (%)
131759210
221559240
321458260
421257290
521156310
621152341
721051361
82949381
92947411
101945432
111843452
121841473
131739494
141637515
151635526
161532557
171530568
181428589
1914265811
2014245912
2113235914
2213215916
2312196018
2412185920
2512165823
2612155725
2711145727
2801135630
2901125532
3001125334
3101115335

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 5:20 AM to 5:40 AM, and sunset from 7:55 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:207:55
214.65:207:55
314.65:217:55
414.65:217:55
514.55:227:54
614.55:227:54
714.55:237:54
814.55:237:54
914.55:247:54
1014.55:257:53
1114.55:257:53
1214.45:267:53
1314.45:267:52
1414.45:277:52
1514.45:287:51
1614.45:287:51
1714.45:297:50
1814.35:307:50
1914.35:317:49
2014.35:317:49
2114.35:327:48
2214.25:337:47
2314.25:347:47
2414.25:347:46
2514.25:357:45
2614.15:367:44
2714.15:377:44
2814.15:387:43
2914.15:397:42
3014.05:397:41
3114.05:407:40

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.46 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.82 kWh/m² in May across the year — July's 4.46 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in July

Hazard calendar for Ganghwa-gun

In seasonPeak

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

Ganghwa-gun sits in the Pacific typhoon belt; the season peaks July–October.

Ganghwa-gun'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 Ganghwa-gun?

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

5.4
Sightseeing
5th-best month of the year
5.8
Beach & pool
4th-best month of the year

July is a reasonable time to visit Ganghwa-gun for sightseeing.

What to pack for Ganghwa-gun in July

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

In July, Ganghwa-gun sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. About 15 days see rain.

light clothesrain gear

Sea temperature near Ganghwa-gun 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 17 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 7 to Oct 10 — about 3.2 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan5Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May13Bracing
Jun17Cool
Jul21Refreshing
Aug24Warm
Sep23Refreshing
Oct19Cool
Nov14Bracing
Dec9Bracing

UV index in Ganghwa-gun 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 Ganghwa-gun peaks around July 22 at about 7 (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 7Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug7Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Ganghwa-gun 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 Ganghwa-gun 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 Ganghwa-gun?

Ganghwa-gun sits at 37.7°N, 126.5°E, 15 m above sea level, in South Korea. The nearest listed city is Gimpo-si, 24 km away.

Yŏnan-ŭpIncheonBucheon-si

Topography around Ganghwa-gun

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

Within 3 km, the terrain around Ganghwa-gun has only modest variations in elevation — a maximum elevation change of 227 m around an average of 38 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 449 m; within 80 km, large variations in elevation — a maximum elevation change of 924 m.

The land around Ganghwa-gun is covered by trees (39%) and cropland (30%) within 3 km, cropland (31%), trees (30%) and water (23%) within 16 km, and water (33%) and trees (31%) within 80 km.

3 km
227 m
16 km
449 m
80 km
924 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Gimpo-si 24 km · Kaesŏng 26 km · Munsan 29 km · Paech’ŏn-ŭp 32 km · Goyang-si 32 km · Yŏnan-ŭp 34 km · Incheon 38 km · Bucheon-si 38 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 Ganghwa-gun (37.7472°, 126.4856°, 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).