The toboggan ride was really fun, and the cable car ride up the mountain offered great views. Although the journeys were short, it was a very worthwhile trip. The time spent at the outlet was limited, but if you did your research beforehand, you could buy enough things you wanted. Although you could only see North Korea through binoculars at the observation deck, it was still a unique experience. The seaweed museum is really suitable for people who want to buy a lot of seaweed; otherwise, it can be a bit boring. The whole day's itinerary was actually quite well-planned. Our guide, Rachel, was excellent—very friendly and considerate, and proactively took care of the group members. She was a very reassuring guide!
Anonymous User
Family
Ganghwa Island Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Ganghwa Island year round climate
Spring (March–May): Average 4.2–15.1°C, mild climate gradually warming, rainfall gradually increasing. Common activities: picnics, flower viewing, cycling. Recommended clothing: light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 20.0–25.3°C, hot and humid, higher rainfall, especially in July. Common activities: swimming at the beach, water sports, island exploration. Recommended clothing: light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 12.8–21.8°C, cool and comfortable, sunny weather, decreased rainfall. Common activities: maple leaf viewing, hiking, harvesting agricultural products. Recommended clothing: comfortable long-sleeved shirts, light jacket, comfortable shoes.
Winter (December–February): Average -4.1–-1.6°C, cold and dry, low rainfall. Common activities: enjoying winter scenery, onsen experience. Recommended clothing: warm coat, hat, scarf, gloves.
Ganghwa Island climatological average
Annual average temperature: approx. 11°C / Annual rainfall: approx. 1318 mm / Summer humidity: 70%–80% / Rainiest month: July
Ganghwa Island monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-4.1°C
16.3
February
-1.6°C
16.5
March
4.2°C
43.8
April
10.7°C
55.5
May
15.1°C
82.5
June
20°C
171
July
23.8°C
335.2
August
25.3°C
257.9
September
21.8°C
174.8
October
12.8°C
84.2
November
5.9°C
55.2
December
-2.1°C
25.9
Ganghwa Island weather for the next seven days
3/23
Monday
Sunny
15.7°C/4.8°C
3/24
Tuesday
Partly Cloudy
13°C/6.8°C
3/25
Wednesday
Sunny
13.9°C/6.9°C
3/26
Thursday
Sunny
15.3°C/6.9°C
3/27
Friday
Sunny
15.3°C/7.6°C
3/28
Saturday
Sunny
16.6°C/6.7°C
3/29
Sunday
Patchy rain nearby
14.7°C/7.9°C
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