Seongnam Weather in March
Seongnam in March averages 12°C (54°F) during the day and 0°C (32°F) at night. Some rainfall is typical for this time of year.
Rainfall in Seongnam in March
On average, there are about 7 days with rain during this month, averaging 42 mm (1.7 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Seongnam in March
Daytime temperatures in Seongnam reach 12°C (54°F) in March, dropping to 0°C (32°F) at night. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 0°C (32°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Seongnam in March
Enjoy a sunny month with about 199 hours of sunshine, making it one of the brighter months of the year despite the cool conditions.
Wind Speed in Seongnam in March
Wind speeds average 2 m/s (4 knots) during March. 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Seongnam's climate page.
Seongnam Temperature in March
Min Temperature
0°C (32°F)
Max Temperature
12°C (54°F)
Chance of Rain
24%
Precipitation
42 mm (1.7 in)
Rainy days
7 days
Humidity
54% *
Windspeed
2 m/s (4 knots) *
Sunshine
199 hours *
Percentage Sunshine
55% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Seongnam typically rise from around 8°C (46°F) at the start of March to approximately 14°C (57°F) by the end. Nights are cold, with lows typically ranging from -2°C (28°F) to 3°C (37°F).
Average temperatures in March
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 March
Historical weather for Seongnam in March
Browse day-by-day weather records for Seongnam spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Seongnam historical weather extremes in March
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Seongnam.
- Seongnam recorded its highest March temperature of 25°C (77°F) on March 26, 2025.
- The coldest night in March in Seongnam was on March 5, 1977, with a minimum of -10°C (14°F).
Best Places in South Korea in March
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in March →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Seongnam in March
The weather can swing between comfortable and chilly in March, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Seongnam in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Seongnam's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Seongnam climate overview or explore weather in South Korea.
