Windhoek Weather in September
Average highs run from 28°C on September 1 to 31°C on September 30, and lows from 10°C to 13°C. Normal precipitation for the month is 3 mm over about 0 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
- 29°C
- Average low
- 11°C
- Precipitation
- 3 mm
- Reanalysis high
- 35°CSep 27, 1997
- Reanalysis low
- -2°CSep 10, 1999
- Daylight
- 11 h 40 min to 12 h 16 min
- Cloud cover
- 25%
- Humidity
- 20%
- Dew point
- -6°C
- Wind
- 16.2 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 | 28°C | 10°C | 31°C 2004 | 2°C 2013 | 1% |
| Sep 2 | 28°C | 10°C | 31°C 2007 | 6°C 2015 | 1% |
| Sep 3 | 28°C | 10°C | 31°C 2007 | 7°C 2004 | 1% |
| Sep 4 | 28°C | 10°C | 31°C 2019 | 7°C 2015 | 0% |
| Sep 5 | 28°C | 10°C | 31°C 2008 | 4°C 2003 | 1% |
| Sep 6 | 28°C | 10°C | 32°C 2019 | 4°C 2018 | 1% |
| Sep 7 | 29°C | 10°C | 31°C 2010 | 1°C 2018 | 1% |
| Sep 8 | 29°C | 11°C | 32°C 2005 | -1°C 2018 | 1% |
| Sep 9 | 29°C | 11°C | 32°C 2001 | 2°C 2018 | 1% |
| Sep 10 | 29°C | 11°C | 32°C 2001 | -2°C 1999 | 2% |
| Sep 11 | 29°C | 11°C | 32°C 2016 | 2°C 1999 | 2% |
| Sep 12 | 29°C | 11°C | 32°C 2015 | 4°C 2001 | 2% |
| Sep 13 | 29°C | 11°C | 32°C 2007 | 0°C 2001 | 2% |
| Sep 14 | 29°C | 11°C | 32°C 2017 | 2°C 2001 | 2% |
| Sep 15 | 29°C | 11°C | 32°C 2017 | 7°C 2000 | 2% |
| Sep 16 | 29°C | 11°C | 33°C 2017 | 1°C 2000 | 2% |
| Sep 17 | 30°C | 11°C | 33°C 2017 | 0°C 2000 | 3% |
| Sep 18 | 30°C | 12°C | 34°C 2013 | 0°C 1996 | 3% |
| Sep 19 | 30°C | 12°C | 34°C 2017 | 3°C 2004 | 4% |
| Sep 20 | 30°C | 12°C | 34°C 2017 | 3°C 2010 | 3% |
| Sep 21 | 30°C | 12°C | 34°C 2017 | -1°C 2013 | 3% |
| Sep 22 | 30°C | 12°C | 34°C 2017 | 4°C 2013 | 4% |
| Sep 23 | 30°C | 12°C | 34°C 2017 | 7°C 2012 | 5% |
| Sep 24 | 30°C | 12°C | 34°C 2017 | 6°C 2004 | 5% |
| Sep 25 | 30°C | 12°C | 35°C 1997 | 1°C 2004 | 5% |
| Sep 26 | 30°C | 12°C | 34°C 1997 | 4°C 1999 | 5% |
| Sep 27 | 30°C | 12°C | 35°C 1997 | 1°C 1999 | 6% |
| Sep 28 | 31°C | 12°C | 35°C 1997 | 4°C 2012 | 6% |
| Sep 29 | 31°C | 12°C | 34°C 1997 | 5°C 2012 | 6% |
| Sep 30 | 31°C | 13°C | 34°C 1997 | 7°C 2014 | 6% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- September 1
- sunrise 7:02 AM, sunset 6:42 PM
- September 30
- sunrise 6:34 AM, sunset 6:50 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.