Sosan Weather in September

During September, Sosan experiences high daytime temperatures of 26°C (79°F) and cooler nights around 19°C (66°F). As part of the summer season, expect quite a bit of rainfall. Around 140 mm (5.5 in) is typical.

Rainfall in Sosan in September

This month experiences about 8 days of rain according to historical data, averaging 140 mm (5.5 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Sosan in September

Sosan in September gets highs of 26°C (79°F) during the day and drops to 19°C (66°F) at night. Summer occurs in September. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 19°C (66°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 Sosan in September

With approximately 196 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Sosan in September

Average wind conditions reach 1 m/s (2 knots) in September. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.

Average water temperature in September

At 23°C (73°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

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

Sosan Temperature in September

Min Temperature 19°C (66°F)  

Max Temperature 26°C (79°F)  

Water Temperature 23°C (73°F)  

Chance of Rain 28%  

Precipitation 140 mm (5.5 in)  

Rainy days 8 days  

Humidity 81%  

Windspeed 1 m/s (2 knots)  

Sunshine 196 hours  

Percentage Sunshine 53%  

What to Wear in Sosan 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. Expect water temperatures of around 23°C (73°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Sosan in September

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

Swimming

7/10

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 Sosan's climate page.

More climate data for Sosan

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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