Altai Weather in September
Average highs run from 19°C on September 1 to 11°C on September 30, and lows from 5°C to -2°C. Normal precipitation for the month is 15 mm over about 4 wet days.
September day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
September at a glance
- Average high
- 15°C
- Average low
- 1°C
- Precipitation
- 15 mm
- Reanalysis high
- 26°CSep 2, 2019
- Reanalysis low
- -11°CSep 30, 2015
- Daylight
- 13 h 20 min to 11 h 46 min
- Cloud cover
- 46%
- Humidity
- 45%
- Dew point
- -5°C
- Wind
- 13.7 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 19°C | 5°C | 25°C 2019 | -3°C 1996 | 18% |
| Sep 2 | 19°C | 4°C | 26°C 2019 | -3°C 1996 | 18% |
| Sep 3 | 18°C | 4°C | 25°C 2014 | -3°C 2000 | 18% |
| Sep 4 | 18°C | 4°C | 25°C 1997 | -6°C 1992 | 18% |
| Sep 5 | 18°C | 3°C | 26°C 1998 | -7°C 1992 | 18% |
| Sep 6 | 18°C | 3°C | 26°C 1998 | -3°C 1992 | 18% |
| Sep 7 | 17°C | 3°C | 23°C 2005 | -4°C 2006 | 16% |
| Sep 8 | 17°C | 2°C | 23°C 2001 | -4°C 2006 | 17% |
| Sep 9 | 17°C | 2°C | 24°C 2001 | -3°C 1995 | 16% |
| Sep 10 | 16°C | 2°C | 24°C 2010 | -3°C 1999 | 16% |
| Sep 11 | 16°C | 2°C | 23°C 2008 | -4°C 2012 | 16% |
| Sep 12 | 16°C | 1°C | 25°C 2010 | -4°C 2020 | 15% |
| Sep 13 | 16°C | 1°C | 24°C 2016 | -6°C 2018 | 15% |
| Sep 14 | 16°C | 1°C | 23°C 2016 | -7°C 2018 | 14% |
| Sep 15 | 16°C | 1°C | 25°C 2006 | -6°C 2011 | 13% |
| Sep 16 | 15°C | 0°C | 21°C 2010 | -6°C 2005 | 12% |
| Sep 17 | 15°C | 0°C | 20°C 2009 | -8°C 2002 | 13% |
| Sep 18 | 15°C | 0°C | 22°C 2020 | -5°C 1998 | 13% |
| Sep 19 | 15°C | 0°C | 22°C 1995 | -6°C 2009 | 12% |
| Sep 20 | 14°C | 0°C | 21°C 2000 | -7°C 2018 | 12% |
| Sep 21 | 14°C | -1°C | 22°C 1996 | -7°C 2013 | 12% |
| Sep 22 | 14°C | -1°C | 22°C 2019 | -7°C 2013 | 12% |
| Sep 23 | 14°C | -1°C | 22°C 2019 | -6°C 2013 | 11% |
| Sep 24 | 13°C | -1°C | 22°C 2019 | -6°C 2008 | 11% |
| Sep 25 | 13°C | -1°C | 22°C 1996 | -8°C 1993 | 11% |
| Sep 26 | 13°C | -1°C | 20°C 2019 | -8°C 1993 | 11% |
| Sep 27 | 12°C | -2°C | 19°C 2002 | -6°C 2017 | 11% |
| Sep 28 | 12°C | -2°C | 20°C 2002 | -9°C 2003 | 10% |
| Sep 29 | 12°C | -2°C | 19°C 2006 | -9°C 2003 | 10% |
| Sep 30 | 11°C | -2°C | 19°C 2019 | -11°C 2015 | 11% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+7).
- September 1
- sunrise 5:55 AM, sunset 7:15 PM
- September 30
- sunrise 6:32 AM, sunset 6:18 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.