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21°
Mostly Clear
Feels Like: 19°
Min: 21°
Max: 31°
The next few hours will be mostly clear, with today reaching 31°C and dropping to 20°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:30
Sunrise
17:30
Sunset
Moon
Waxing Gibbous
13:12
Moonrise
02:03
Moonset
Daily Forecast
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
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View stargazing scoreWeather in Sleman today, September 21, 2026
Sleman starts September 21, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The morning looks comparatively open, with cloud near 31% around 11:00. Early outdoor plans have a better chance of staying dry and bright.
The temperature range runs from about 21°C up to 31°C. Moisture in the air spans 52%-98%, with the highest values around 22:00. A lighter breeze peaks around 16:00 near 4.1 km/h.
Afternoon conditions open up, holding cloud close to 48% near 23:00. The day finishes on a milder, brighter note. Visibility stays near 16.1 km. The sun rises at 05:30 and sets at 17:30, for a total of 12 hours 0 minutes of sunlight today.
In short, September 21, 2026 looks like a fine day in Sleman for being outside, peaking around 31°C.
Frequently asked questions about weather in Sleman
How warm does it get in Sleman?
The warmest month in Sleman is April, with average high temperatures of 30°C. The average temperature during this period is around 27°C.
How cold does it get in Sleman?
The coldest month in Sleman is August, with average low temperatures of 21°C. The average temperature during this period is around 24°C.
What is the wettest time of year in Sleman?
The wettest month in Sleman is November, with an average of 410mm of precipitation.
What is the driest time of year in Sleman?
The driest month in Sleman is August, with an average of 47mm of precipitation.
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