See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
25°
Clear
Feels Like: 23°
Min: 14°
Max: 25°
The next few hours will be clear, with today reaching 25°C and dropping to 13°C. The coming days will be mostly clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:20
Sunrise
18:33
Sunset
Moon
Waxing Crescent
10:22
Moonrise
20:29
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Ansan-si.
Resources
UV Index
Humidity
Weather in Ansan-si today, September 15, 2026
Conditions in Ansan-si on September 15, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting.
Temperatures climb from an overnight low near 14°C toward a daytime high of about 25°C. Relative humidity sits between 35% and 79%, reaching its peak around 23:00. Expect gentle winds, highest near 15:00 at 4.8 km/h.
Afternoon conditions open up, holding cloud close to 0% near 12:00. The day finishes on a milder, brighter note. Expect visibility around 16.1 km. Expect sunrise at 06:20, sunset at 18:33, and 12 hours 13 minutes of sunlight today overall.
Overall, Ansan-si on September 15, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 25°C.
Frequently asked questions about weather in Ansan-si
How warm does it get in Ansan-si?
The warmest month in Ansan-si is August, with average high temperatures of 28°C. The average temperature during this period is around 26°C.
How cold does it get in Ansan-si?
The coldest month in Ansan-si is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Ansan-si?
The wettest month in Ansan-si is July, with an average of 272mm of precipitation.
What is the driest time of year in Ansan-si?
The driest month in Ansan-si is January, with an average of 25mm of precipitation.