Seongnam-si Weather Today

Daily Weather Forecast & Temperature in Seongnam-si

clear sky
17°
clear sky
H: 17° L: 17°
Feels like 15°
AQI: (/5)
Humidity
27%
Dew -2°
Wind speed
3.71 km/h
W
Pressure
1017 hPa
Visibility
10 km
Weather Summary
Currently in Seongnam-si, expect varied conditions with mild temperatures around 17°. Winds are calm winds. Low humidity levels may cause dry conditions.
Precipitation Probability
0%
21
0%
00
0%
03
0%
06
20%
09
100%
12
100%
15
100%
18
100%
21
100%
00
100%
03
0%
06
0%
09
0%
12
0%
15
0%
18
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
15°
Wed
21:00
13°
 
10°
 
10°
 
10°
Thu
09:00
 
 
 
10°
Thu
21:00
10°
 
10°
 
10°
 
10°
Fri
09:00
12°
 
12°
 
11°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:07
Sunset
Sunset
18:59
Moon Phase
Waning Gibbous (54%)
Timezone: GMT+05:30
Last updated: Apr 8, 2026 2:50 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
37.438610
Longitude
Longitude
127.137779
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More about Seongnam-si
Content curated by the NearWeather editorial team · Updated periodically

Climate and Weather in Seongnam, South Korea

Seongnam is a vibrant city located in the Gyeonggi Province of South Korea. As with any location, understanding the climate and weather patterns is essential for residents and visitors alike. Seongnam experiences a temperate climate with distinct four seasons, allowing for a diverse range of weather conditions throughout the year. Let's take a closer look at the climate and weather in Seongnam.

Temperature

The average annual temperature in Seongnam is around 12.5 degrees Celsius (54.5 degrees Fahrenheit). However, the temperature can vary significantly throughout the year. Summers in Seongnam are warm and humid, with average highs reaching 29 degrees Celsius (84 degrees Fahrenheit) in July and August. Winters, on the other hand, are cold and dry, with average lows dropping to -6 degrees Celsius (21 degrees Fahrenheit) in January and February.

The chart below provides a monthly breakdown of the average temperatures in Seongnam:

Month Average High (°C) Average Low (°C)
January 1 -9
February 4 -7
March 10 -1
April 17 6
May 23 12
June 27 18
July 29 22
August 30 22
September 26 16
October 19 8
November 12 0
December 4 -7

Precipitation

Seongnam receives a moderate amount of rainfall throughout the year, with the wettest months being June and July. The average annual precipitation is approximately 1,100 millimeters (43 inches). Summers in Seongnam are generally rainier than winters, with occasional thunderstorms and heavy downpours.

The chart below shows the average monthly precipitation in Seongnam:

Month Precipitation (mm)
January 20
February 20
March 50
April 80
May 90
June 170
July 370
August 280
September 120
October 60
November 40
December 20

Snowfall

During the winter months, Seongnam experiences occasional snowfall. The amount of snowfall can vary from year to year, but on average, Seongnam receives approximately 30 centimeters (12 inches) of snow per year. The snowfall is most common in January and February, when temperatures are at their lowest.

Wind

Seongnam is not known for particularly strong winds. The average wind speed in the city ranges from 2 to 5 meters per second (4.5 to 11 mph). However, it's worth noting that the wind can occasionally pick up during typhoon season, which typically occurs from July to September. During this time, the city may experience stronger gusts of wind and heavy rainfall.

Sunshine

Seongnam enjoys a good amount of sunshine throughout the year. On average, the city receives approximately 2,300 hours of sunshine annually. The sunniest months are usually July and August, with around 220 hours of sunshine per month.

Conclusion

Seongnam experiences a temperate climate with distinct four seasons. Summers are warm and humid, while winters are cold and dry. The city receives a moderate amount of rainfall throughout the year, with occasional snowfall during winter. Seongnam enjoys a good amount of sunshine, providing residents and visitors ample opportunity to explore and enjoy outdoor activities. Whether you prefer the heat of summer or the snowy landscapes of winter, Seongnam offers a diverse range of weather conditions throughout the year.

Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Seongnam-si
What is the Latitude and Longitude of Seongnam-si?

Seongnam-si's Latitude is 37.438610 & Longitude is 127.137779.

What is the weather in Seongnam-si today?

Weather in Seongnam-si is 17° today.

What is the climatic condition of Seongnam-si today?

Climate Conditions in Seongnam-si shows clear sky today.

What is the humidity in Seongnam-si today?

Humidity in Seongnam-si is 27% today.

What is the wind speed in Seongnam-si today?

Wind speed in Seongnam-si is 3.71 km/h, flowing at 260° W wind direction.

What does it feel like in Seongnam-si today?

It feels like 15° in Seongnam-si today, with 0% cloud cover and 10 km visibility.

Weather in Seongnam-si