Ganghwa Weather in September

September in Ganghwa averages 27°C (81°F) during the day and 18°C (64°F) at night. Quite a bit of rainfall is typical this month, with around 121 mm (4.8 in) on average. An umbrella is a good idea.

Rainfall in Ganghwa in September

Past climate data indicates that roughly 8 days will see rain, totalling around 121 mm (4.8 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Ganghwa in September

If you're visiting Ganghwa in September, expect highs of 27°C (81°F) and overnight lows around 18°C (64°F). September is part of summer. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Ganghwa in September

The month enjoys around 202 hours of sunshine, creating mostly sunny days with good weather conditions.

Should you favor a climate that's both dry and comfortably warm, May and October typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
• February
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• May
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For a detailed overview over the year and the best time to visit South Korea, check out our Ganghwa's climate page.

Ganghwa Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 26%  

Precipitation 121 mm (4.8 in)  

Rainy days 8 days  

Humidity 71% *  

Sunshine 202 hours *  

Percentage Sunshine *  

* Data from: Incheon, South Korea (37 KM, 23 Miles).

What to Wear in Ganghwa in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Ganghwa in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit South Korea, check out our Ganghwa's climate page.

More climate data for Ganghwa

Temperature Rainfall Sunshine Humidity

See the full Ganghwa climate overview or explore weather in South Korea.