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Hourly Forecast
Daylight Hours
07:18
Sunrise
19:16
Sunset
Moon
Waxing Gibbous
17:46
Moonrise
01:19
Moonset
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View stargazing scoreWeather in Barnaul today, September 21, 2026
Barnaul starts September 21, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Expect a grey start, with morning cloud around 95% by 11:00. Outdoor plans early on should not rely on bright skies.
The day peaks near 16°C and cools toward 10°C. Relative humidity sits between 62% and 94%, reaching its peak around 07:00. Airflow remains manageable, reaching about 2.4 km/h around 16:00.
The second half of the day still looks unsettled, with rain probability around 30% by 14:00. Dense cloud near 96% at 12:00 keeps the feel grey. Visibility stays near 16.1 km. Sunrise is at 07:18 and sunset at 19:16, giving 11 hours 57 minutes of sunlight today.
In short, treat September 21, 2026 in Barnaul as a damp day: pack covers, watch the wetter hours, and expect a high near 16°C.
Frequently asked questions about weather in Barnaul
How warm does it get in Barnaul?
The warmest month in Barnaul is July, with average high temperatures of 25°C. The average temperature during this period is around 20°C.
How cold does it get in Barnaul?
The coldest month in Barnaul is January, with average low temperatures of -19°C. The average temperature during this period is around -15°C.
What is the wettest time of year in Barnaul?
The wettest month in Barnaul is July, with an average of 73mm of precipitation.
What is the driest time of year in Barnaul?
The driest month in Barnaul is February, with an average of 23mm of precipitation.
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