Tongyeong Weather in September

Tongyeong in September sees high temperatures, with highs around 26°C (79°F) and overnight lows of 21°C (70°F). With the rainy season in full effect, expect around 177 mm (7 in) of rainfall and regular showers throughout the month.

Rainfall in Tongyeong in September

Tongyeong is in the rainy season in September, with rain on around 10 days and an average of 177 mm (7 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Tongyeong in September

September in Tongyeong brings high temperatures, with highs of 26°C (79°F) and nights around 21°C (70°F). September is a notable month of the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights remain mild at 21°C (70°F), making evenings a pleasant time to be outdoors.

Sunshine in Tongyeong in September

The city usually sees around 160 hours of sunlight, indicating a moderately sunny period (despite it being part of rainy season).

Wind Speed in Tongyeong in September

Wind speeds average 2 m/s (4 knots) during September. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.

Should you favor a climate that's both dry and comfortably warm, October typically offers 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 Tongyeong's climate page.

Tongyeong Temperature in September

Min Temperature 21°C (70°F)  

Max Temperature 26°C (79°F)  

Chance of Rain 34%  

Precipitation 177 mm (7 in)  

Rainy days 10 days  

Humidity 77% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 160 hours *  

Percentage Sunshine 43% *  

* Data from: Chungmu, South Korea (2 KM, 1 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Tongyeong typically drop from around 29°C (84°F) at the start of September to approximately 25°C (77°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 21°C (70°F).

Average temperatures in September

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

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Historical weather for Tongyeong in September

Browse day-by-day weather records for Tongyeong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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Tongyeong historical weather extremes in September

Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Tongyeong.

• On September 2, 1994, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
• The coldest September day was on September 19, 1986, with a maximum of 18°C (64°F).
• The coldest night in September in Tongyeong was on September 28, 1987, with a minimum of 8°C (46°F).

What to Wear in Tongyeong in September

Warm but pleasant conditions in Tongyeong in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Tongyeong 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 Tongyeong's climate page.

More climate data for Tongyeong

Temperature Rainfall Sunshine Humidity Wind Speed

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