Viacha Weather in September
Average highs run from 15°C on September 1 to 17°C on September 30, and lows from -2°C to 0°C.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 16°C
- Average low
- -1°C
- Record high
- 22°CSep 13, 2016
- Record low
- -10°CSep 5, 1981
- Daylight
- 11 h 47 min to 12 h 14 min
- Cloud cover
- 46%
- Humidity
- 64%
- Dew point
- -1°C
- Wind
- 13.0 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 | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 15°C | -2°C | 18°C 2008 | -8°C 2012 | 12% |
| Sep 2 | 15°C | -2°C | 19°C 2008 | -9°C 2018 | 12% |
| Sep 3 | 15°C | -2°C | 19°C 2008 | -8°C 2008 | 13% |
| Sep 4 | 15°C | -2°C | 19°C 2021 | -9°C 1991 | 15% |
| Sep 5 | 15°C | -2°C | 19°C 2021 | -10°C 1981 | 16% |
| Sep 6 | 16°C | -2°C | 19°C 2020 | -6°C 2008 | 17% |
| Sep 7 | 16°C | -2°C | 19°C 2020 | -7°C 2000 | 16% |
| Sep 8 | 16°C | -2°C | 19°C 1997 | -7°C 1978 | 16% |
| Sep 9 | 16°C | -2°C | 20°C 1997 | -9°C 1998 | 17% |
| Sep 10 | 16°C | -2°C | 20°C 1997 | -6°C 2006 | 17% |
| Sep 11 | 16°C | -1°C | 19°C 2024 | -8°C 1999 | 17% |
| Sep 12 | 16°C | -1°C | 21°C 2016 | -5°C 1999 | 17% |
| Sep 13 | 16°C | 0°C | 22°C 2016 | -4°C 1991 | 18% |
| Sep 14 | 16°C | -1°C | 22°C 2016 | -5°C 1978 | 18% |
| Sep 15 | 16°C | 0°C | 20°C 2016 | -6°C 1981 | 18% |
| Sep 16 | 16°C | 0°C | 19°C 2016 | -4°C 1998 | 19% |
| Sep 17 | 16°C | -1°C | 19°C 2010 | -5°C 1992 | 19% |
| Sep 18 | 16°C | -1°C | 19°C 2012 | -6°C 2013 | 20% |
| Sep 19 | 16°C | 0°C | 19°C 2006 | -5°C 2022 | 20% |
| Sep 20 | 16°C | 0°C | 19°C 2006 | -4°C 1978 | 20% |
| Sep 21 | 17°C | 0°C | 19°C 2024 | -4°C 2012 | 20% |
| Sep 22 | 16°C | 0°C | 19°C 2022 | -6°C 2022 | 21% |
| Sep 23 | 17°C | 0°C | 19°C 2024 | -4°C 1979 | 21% |
| Sep 24 | 16°C | 0°C | 20°C 2012 | -7°C 2009 | 22% |
| Sep 25 | 16°C | 0°C | 20°C 2012 | -5°C 2020 | 22% |
| Sep 26 | 16°C | 0°C | 21°C 2023 | -6°C 2003 | 22% |
| Sep 27 | 16°C | 0°C | 21°C 2023 | -4°C 2005 | 22% |
| Sep 28 | 16°C | 0°C | 20°C 2010 | -4°C 2022 | 23% |
| Sep 29 | 16°C | 0°C | 20°C 2010 | -3°C 2000 | 24% |
| Sep 30 | 17°C | 0°C | 20°C 2010 | -6°C 2018 | 23% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- September 1
- sunrise 6:40 AM, sunset 6:27 PM
- September 30
- sunrise 6:16 AM, sunset 6:30 PM
Other months
Sources
Records: NOAA GHCN-Daily, station BLM00085201, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.