Mount Gambier Weather in September
Average highs run from 16°C on September 1 to 17°C on September 30, and lows from 7°C to 7°C. Normal precipitation for the month is 76 mm over about 15 wet days.
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
- 7°C
- Precipitation
- 76 mm
- Record high
- 32°CSep 30, 1961
- Record low
- -3°CSep 3, 1959
- Daylight
- 11 h 16 min to 12 h 25 min
- Cloud cover
- 63%
- Humidity
- 77%
- Dew point
- 8°C
- Wind
- 12.6 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 | 16°C | 7°C | 25°C 2013 | -3°C 1959 | 47% |
| Sep 2 | 16°C | 6°C | 29°C 2021 | -2°C 1959 | 48% |
| Sep 3 | 16°C | 7°C | 25°C 2013 | -3°C 1959 | 49% |
| Sep 4 | 16°C | 6°C | 26°C 1972 | -3°C 1959 | 50% |
| Sep 5 | 16°C | 6°C | 26°C 1959 | 0°C 2025 | 51% |
| Sep 6 | 16°C | 6°C | 24°C 1950 | -1°C 1966 | 52% |
| Sep 7 | 16°C | 7°C | 25°C 1950 | -2°C 1995 | 52% |
| Sep 8 | 16°C | 7°C | 25°C 2005 | 0°C 2011 | 52% |
| Sep 9 | 16°C | 7°C | 24°C 2021 | -1°C 1954 | 52% |
| Sep 10 | 16°C | 6°C | 26°C 1981 | 1°C 1954 | 53% |
| Sep 11 | 16°C | 7°C | 26°C 1959 | 1°C 1966 | 52% |
| Sep 12 | 16°C | 7°C | 26°C 2009 | 0°C 1950 | 52% |
| Sep 13 | 16°C | 7°C | 25°C 2015 | 0°C 2022 | 52% |
| Sep 14 | 16°C | 7°C | 26°C 2023 | 0°C 1954 | 50% |
| Sep 15 | 16°C | 8°C | 25°C 2025 | 0°C 1954 | 50% |
| Sep 16 | 16°C | 7°C | 22°C 1982 | 0°C 1992 | 49% |
| Sep 17 | 16°C | 6°C | 28°C 1981 | -1°C 2019 | 49% |
| Sep 18 | 17°C | 7°C | 25°C 1996 | -1°C 1976 | 48% |
| Sep 19 | 16°C | 8°C | 26°C 2020 | 0°C 1977 | 46% |
| Sep 20 | 16°C | 6°C | 24°C 1948 | -1°C 2014 | 46% |
| Sep 21 | 17°C | 7°C | 26°C 2004 | -2°C 2014 | 46% |
| Sep 22 | 18°C | 8°C | 25°C 2011 | 1°C 2023 | 45% |
| Sep 23 | 17°C | 7°C | 28°C 2001 | 0°C 1945 | 44% |
| Sep 24 | 15°C | 7°C | 29°C 1987 | 2°C 1976 | 44% |
| Sep 25 | 16°C | 6°C | 25°C 1987 | 0°C 1976 | 43% |
| Sep 26 | 17°C | 6°C | 31°C 1987 | -2°C 1954 | 42% |
| Sep 27 | 18°C | 6°C | 28°C 1987 | 0°C 2024 | 40% |
| Sep 28 | 17°C | 7°C | 27°C 1999 | 0°C 2020 | 38% |
| Sep 29 | 17°C | 7°C | 28°C 1961 | 1°C 2018 | 39% |
| Sep 30 | 17°C | 7°C | 32°C 1961 | -1°C 2003 | 40% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9:30).
- September 1
- sunrise 6:29 AM, sunset 5:45 PM
- September 30
- sunrise 5:45 AM, sunset 6:10 PM
Other months
Sources
Records: NOAA GHCN-Daily, station ASN00026021, 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.