Mwanza Weather in September
Average highs run from 29°C on September 1 to 32°C on September 30, and lows from 14°C to 17°C. Normal precipitation for the month is 9 mm over about 3 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
- 31°C
- Average low
- 16°C
- Precipitation
- 9 mm
- Reanalysis high
- 39°CSep 30, 1994
- Reanalysis low
- 9°CSep 1, 2006
- Daylight
- 11 h 48 min to 12 h 14 min
- Cloud cover
- 31%
- Humidity
- 50%
- Dew point
- 10°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 | 29°C | 14°C | 35°C 2008 | 9°C 2006 | 5% |
| Sep 2 | 29°C | 14°C | 33°C 2012 | 10°C 2014 | 5% |
| Sep 3 | 29°C | 14°C | 34°C 2004 | 9°C 2006 | 5% |
| Sep 4 | 29°C | 14°C | 35°C 2000 | 11°C 1994 | 5% |
| Sep 5 | 29°C | 15°C | 33°C 2000 | 11°C 1999 | 5% |
| Sep 6 | 29°C | 15°C | 34°C 2001 | 11°C 2013 | 5% |
| Sep 7 | 30°C | 15°C | 33°C 1991 | 10°C 1999 | 5% |
| Sep 8 | 30°C | 15°C | 34°C 1991 | 9°C 2011 | 5% |
| Sep 9 | 30°C | 15°C | 35°C 2008 | 9°C 2019 | 6% |
| Sep 10 | 30°C | 15°C | 36°C 2002 | 11°C 2011 | 6% |
| Sep 11 | 30°C | 15°C | 33°C 2000 | 12°C 2010 | 5% |
| Sep 12 | 30°C | 15°C | 34°C 2001 | 12°C 1994 | 5% |
| Sep 13 | 30°C | 15°C | 36°C 1996 | 10°C 1999 | 4% |
| Sep 14 | 31°C | 15°C | 35°C 1996 | 10°C 2010 | 4% |
| Sep 15 | 31°C | 16°C | 34°C 2013 | 10°C 2008 | 4% |
| Sep 16 | 31°C | 16°C | 35°C 2009 | 12°C 2008 | 4% |
| Sep 17 | 31°C | 16°C | 35°C 2009 | 10°C 2001 | 4% |
| Sep 18 | 31°C | 16°C | 36°C 2006 | 11°C 2001 | 4% |
| Sep 19 | 31°C | 16°C | 35°C 2014 | 11°C 2001 | 4% |
| Sep 20 | 32°C | 16°C | 35°C 2008 | 12°C 2001 | 4% |
| Sep 21 | 32°C | 16°C | 36°C 2008 | 12°C 2006 | 4% |
| Sep 22 | 32°C | 17°C | 35°C 1992 | 14°C 2001 | 4% |
| Sep 23 | 32°C | 17°C | 37°C 2007 | 11°C 2006 | 5% |
| Sep 24 | 32°C | 17°C | 38°C 2007 | 13°C 2006 | 6% |
| Sep 25 | 32°C | 17°C | 36°C 2008 | 12°C 2014 | 6% |
| Sep 26 | 32°C | 17°C | 38°C 2004 | 12°C 2019 | 6% |
| Sep 27 | 32°C | 17°C | 37°C 2005 | 12°C 2003 | 7% |
| Sep 28 | 32°C | 17°C | 38°C 2005 | 10°C 2019 | 7% |
| Sep 29 | 32°C | 17°C | 39°C 1994 | 14°C 2019 | 8% |
| Sep 30 | 32°C | 17°C | 39°C 1994 | 14°C 1992 | 8% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- September 1
- sunrise 5:48 AM, sunset 5:36 PM
- September 30
- sunrise 5:25 AM, sunset 5:39 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.