Weather Seongnam-si long-term weather forecast

Long-term weather forecast for Seongnam-si for ten days.

Thursday, Sep 11

84 / 68°F

0.00 in

5 mph

68 °F	73 °F	3 am
75 °F	81 °F	9 am
84 °F	88 °F	3 pm
75 °F	81 °F	9 pm

sunrise 6:09 am
sunset 6:45 pm

HOURLY

During the day morning clear, in the afternoon initially clear, later partly cloudy. The highest temperature 84 °F. At night partly cloudy. The lowest temperature 68 °F.

Interactive map weather South Korea

GPS: 37.4386; 127.1378

altitude: 262 ft
local time:

PLACES IN THE AREA

Weather forecast Seongnam-si, South Korea extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Thursday 09/11/2025
3 AM 2 PM	clear	68 °F 73 °F	0.0 in	3 fps 2 mph southeast	29.9 in	91 %	64 °F	0 %	0%	0%	0%	0%
9 AM 8 PM	clear	75 °F 82 °F	0.0 in	4 fps 3 mph northeast	30.0 in	81 %	68 °F	0 %	0%	0%	0%	0%
3 PM 2 AM	partly cloudy	84 °F 88 °F	0.0 in	8 fps 5 mph east-southeast	29.9 in	52 %	64 °F	19 %	0%	7%	0%	11%
9 PM 8 AM	partly cloudy	75 °F 81 °F	0.0 in	2 fps 2 mph northeast	30.0 in	77 %	66 °F	21 %	0%	19%	0%	1%
Friday 09/12/2025
3 AM 2 PM	partly cloudy	68 °F 73 °F	0.0 in	4 fps 3 mph east-southeast	30.0 in	88 %	64 °F	18 %	0%	0%	0%	18%
9 AM 8 PM	clear	75 °F 81 °F	0.0 in	4 fps 3 mph east	30.0 in	76 %	66 °F	0 %	0%	0%	0%	0%
3 PM 2 AM	partly cloudy	84 °F 90 °F	0.0 in	4 fps 2 mph north-northwest	30.0 in	53 %	64 °F	18 %	0%	18%	0%	0%
9 PM 8 AM	overcast	73 °F 79 °F	0.0 in	2 fps 1 mph south-southeast	30.0 in	79 %	64 °F	100 %	0%	0%	0%	100%

Seongnam-si, South Korea - information

State: South Korea

GPS coordinates: 37.4386; 127.1378

Time zone: Asia / Seoul time difference in hours with time in NY is +7 hours

Population: 1 031 935
Altitude: 262 ft
The administrative part:

Gyeonggi-do, Suwon

Something wrong, something missing?

Weather Seongnam-si, South Korea. Weather forecast for Seongnam.

Weather searching weather forecast for all cities in the world.
The second option is to search through list of continents and countries.

Data source

Weather forecast for Seongnam is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

Weather with Meteobox for your website

Astronomical information Seongnam-si

data are always in the local time

Sun and light

Sept. 10, 2025

Sunrise:	Sunset:
6:09 am	6:45 pm
Noon:	Length of day:
12:28 pm	12:36
Start of civil twilight*:	End of civil twilight*:
5:42 am	7:12 pm
Start of nautical twilight*:	End of nautical twilight*:
5:12 am	7:42 pm
Start of astronomical twilight*:	End of astronomical twilight*:
4:40 am	8:14 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
09/10/2025 8 pm	09/11/2025 9:58 am
Next new moon:	Next full moon:
09/21/2025	10/06/2025