Ganghwa-gun, Incheon Climate

South Korea

Pop. 25,535 Elev. 15 m / 49 ft TZ: Asia/Seoul (UTC+9) ·

Ganghwa-gun sees warm summers peaking at 87°F (31°C) in August, and frigid winters that bottom out around 22°F (-6°C) in February. Humidity pushes the summer feels-like temperature to 104°F (40°C), while wind chill can drive winter lows to 15°F (-9°C). Precipitation occurs on roughly 52 days per year (44.6 in / 1133 mm total), with snow on 2 days and 17 in (425 mm) of annual accumulation. The city averages 141 sunny days per year and around 25 thunderstorm days. Ocean water temperatures reach 83°F (28°C) in summer.

Temperature 30°C (87°F) high -5°C (22°F) low
Feels like 40°C (104°F) high -10°C (15°F) low
Rain 52 days 1133 mm (44.6 in) /yr
Snow 2 days 425 mm (16.7 in) /yr
Sky 141 sunny 25 stormy
Wind 1.5 m/s (3.4 mph) avg

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Monthly Climate Chart

↓ Monthly data table
Best months to visit: Apr, May

Sky & Air by Month

Cloud cover (%)
41
Jan
27
Feb
49
Mar
46
Apr
60
May
65
Jun
64
Jul
65
Aug
69
Sep
71
Oct
37
Nov
41
Dec
Humidity (%)
65
Jan
59
Feb
64
Mar
71
Apr
75
May
77
Jun
81
Jul
82
Aug
80
Sep
77
Oct
69
Nov
66
Dec

Weather Days by Month

↓ Weather days table

Water Temperatures

↓ Water temperatures table

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Nearby Cities

Nearby

Commercial airport 31 km Incheon International Airport (ICN)
Ski resort 55 km 안산썰매장
National park 45 km 북한산국립공원
Mountain peak (1,528 m) 140 km 추애산
Hospital 2 km 비에스종합병원장례식장
Hiking trail 19 km 평화누리길 6코스 (출판도시길)

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Monthly Weather Data

↑ See chart
Month Avg High Avg Low Rainfall Snowfall Sunny Days
January 3°C 37°F -5°C 22°F 7 mm 0.3 in 134 mm5.3 in 16
February 3°C 37°F -5°C 22°F 1 mm 0.0 in 47 mm1.9 in 19
March 11°C 52°F 2°C 36°F 26 mm 1.0 in 169 mm6.7 in 16
April 16°C 61°F 8°C 46°F 98 mm 3.9 in 37 mm1.4 in 15
May 20°C 68°F 13°C 55°F 77 mm 3.0 in 8
June 26°C 79°F 19°C 67°F 155 mm 6.1 in 5
July 30°C 86°F 25°C 76°F 162 mm 6.4 in 9
August 30°C 87°F 25°C 77°F 183 mm 7.2 in 7
September 27°C 80°F 20°C 68°F 202 mm 8.0 in 2
October 20°C 67°F 13°C 56°F 170 mm 6.7 in 7
November 13°C 55°F 4°C 39°F 15 mm 0.6 in 19
December 4°C 40°F -4°C 26°F 36 mm 1.4 in 38 mm1.5 in 18

Weather Days by Month

↑ See chart
Month Sunny Days Storm Days
January 16 0
February 19 0
March 16 0
April 15 3
May 8 2
June 5 4
July 9 5
August 7 5
September 2 3
October 7 3
November 19 0
December 18 0

Water Temperatures Data

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Month Ocean Avg High Lake Avg High
January 6°C 42°F 1°C 33°F
February 3°C 37°F 0°C 33°F
March 7°C 45°F 2°C 36°F
April 12°C 54°F 9°C 49°F
May 17°C 62°F 15°C 60°F
June 22°C 71°F 22°C 71°F
July 27°C 80°F 27°C 81°F
August 28°C 83°F 28°C 82°F
September 28°C 82°F 24°C 76°F
October 23°C 73°F 17°C 62°F
November 17°C 62°F 9°C 48°F
December 11°C 52°F 3°C 38°F