September is one of the cooler months of the year in Burnie, with average highs near 12°C and lows around 7.3°C (mean 9.7°C). It is a relatively wet time of year, averaging 114 mm of rainfall and 84% relative humidity across the period.
September is one of the cooler months of the year in Burnie. Across 45 years of records, the warmest September in Burnie was 2023 — when the month averaged 11°C — while the coldest was 1994 at 8.1°C. Typical September days reach 12°C with nights near 7.3°C. The long-term trend is warming, about 0.2°C per decade.
September is a relatively wet time of year in Burnie, averaging 114 mm of rainfall. The wettest September on record was 1996 with 242 mm, while the driest was 2015 at 30 mm.
Relative humidity in Burnie during September averages 84%. The most humid September was 1991 at 87%, and the least humid was 2021 at 81%.
September receives about 3.3 kWh/m²/day of solar energy in Burnie. The sunniest September was 1985 at 3.8 kWh/m²/day, and the cloudiest was 2017 at 2.7.
Average wind speed in Burnie during September is 2.8 m/s. The windiest September was 2003 at 3.8 m/s, while the calmest was 2015 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.6°C | 9.2°C | 9.9°C | 9.8°C | 10.1°C | +0.5°C |
| Avg High | 12.1°C | 11.5°C | 12.1°C | 12.1°C | 12.4°C | +0.3°C |
| Avg Low | 7.2°C | 6.8°C | 7.6°C | 7.4°C | 7.8°C | +0.6°C |
| Avg Rain | 114 mm | 123 mm | 139 mm | 101 mm | 82 mm | -32 mm |
September temperatures in Burnie have risen by about 0.6°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 2.4°C (1990) to a record high of 18°C (2023).
Rainfall in September is a relatively wet time of year, averaging 114 mm, with a wettest year of 242 mm.
A quieter season to visit Burnie
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Burnie. That said, September — with days averaging 12°C and nights around 7.3°C (mean 9.7°C) and higher rainfall (114 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 12.2°C | 10.0°C | 7.8°C | 15.2°C | 5.2°C | 130 mm | 81% | 3.5 m/s | 3.1 |
| 2024 | 12.1°C | 9.9°C | 7.7°C | 13.9°C | 3.5°C | 104 mm | 82% | 3.6 m/s | 2.8 |
| 2023 🔥 | 13.6°C | 11.0°C | 8.5°C | 18.0°C | 5.6°C | 48 mm | 82% | 2.7 m/s | 3.4 |
| 2022 | 12.4°C | 10.1°C | 7.8°C | 16.9°C | 4.0°C | 67 mm | 84% | 2.4 m/s | 3.4 |
| 2021 | 12.2°C | 9.6°C | 7.1°C | 16.4°C | 3.7°C | 77 mm | 81% | 3.1 m/s | 3.2 |
| 2020 | 11.9°C | 9.9°C | 7.9°C | 14.7°C | 4.2°C | 66 mm | 84% | 2.8 m/s | 3.2 |
| 2019 | 12.1°C | 9.6°C | 7.1°C | 14.7°C | 3.0°C | 53 mm | 82% | 2.6 m/s | 3.6 |
| 2018 | 12.0°C | 9.5°C | 7.1°C | 14.4°C | 3.3°C | 48 mm | 82% | 2.8 m/s | 3.3 |
| 2017 | 11.0°C | 8.9°C | 6.8°C | 14.9°C | 4.0°C | 112 mm | 84% | 3.3 m/s | 2.7 |
| 2016 | 12.3°C | 10.2°C | 8.0°C | 14.6°C | 4.7°C | 111 mm | 86% | 2.4 m/s | 3.1 |
| 2015 | 12.6°C | 9.8°C | 7.0°C | 16.9°C | 2.8°C | 30 mm | 84% | 2.1 m/s | 3.6 |
| 2014 | 13.1°C | 10.5°C | 7.9°C | 17.2°C | 4.4°C | 89 mm | 83% | 2.6 m/s | 3.5 |
| 2013 | 12.4°C | 10.5°C | 8.5°C | 15.4°C | 3.5°C | 151 mm | 86% | 2.9 m/s | 3.2 |
| 2012 | 11.7°C | 9.5°C | 7.4°C | 14.9°C | 3.5°C | 165 mm | 86% | 3 m/s | 3.1 |
| 2011 | 12.3°C | 10.0°C | 7.7°C | 15.3°C | 3.9°C | 90 mm | 83% | 2.8 m/s | 3.4 |
| 2010 | 11.2°C | 9.0°C | 6.9°C | 14.5°C | 3.8°C | 157 mm | 84% | 3.5 m/s | 3 |
| 2009 | 12.3°C | 10.2°C | 8.0°C | 14.8°C | 5.4°C | 154 mm | 85% | 3 m/s | 3 |
| 2008 | 12.0°C | 9.6°C | 7.2°C | 14.7°C | 3.8°C | 125 mm | 82% | 3 m/s | 2.9 |
| 2007 | 12.2°C | 9.9°C | 7.6°C | 14.8°C | 3.9°C | 137 mm | 83% | 3 m/s | 3.3 |
| 2006 | 12.4°C | 9.8°C | 7.3°C | 15.7°C | 4.8°C | 108 mm | 82% | 2.8 m/s | 3.5 |
| 2005 | 12.6°C | 10.2°C | 7.9°C | 16.2°C | 5.0°C | 156 mm | 86% | 2.3 m/s | 3.3 |
| 2004 | 12.2°C | 10.0°C | 7.7°C | 15.0°C | 3.6°C | 85 mm | 86% | 2.7 m/s | 3.2 |
| 2003 | 10.7°C | 8.5°C | 6.3°C | 12.7°C | 4.1°C | 167 mm | 82% | 3.8 m/s | 3.1 |
| 2002 | 11.9°C | 9.7°C | 7.4°C | 16.2°C | 4.6°C | 164 mm | 83% | 3.6 m/s | 3.1 |
| 2001 | 13.2°C | 10.9°C | 8.5°C | 16.5°C | 4.4°C | 125 mm | 85% | 2.5 m/s | 3.1 |
| 2000 | 11.8°C | 10.0°C | 8.1°C | 14.8°C | 5.7°C | 170 mm | 84% | 3.5 m/s | 3 |
| 1999 | 12.9°C | 10.6°C | 8.3°C | 16.3°C | 3.7°C | 73 mm | 84% | 2.3 m/s | 3.2 |
| 1998 | 12.4°C | 10.2°C | 8.1°C | 14.9°C | 4.6°C | 170 mm | 85% | 2.8 m/s | 3.2 |
| 1997 | 12.0°C | 9.5°C | 7.1°C | 14.1°C | 4.0°C | 113 mm | 85% | 2.4 m/s | 3.6 |
| 1996 🌧️ | 10.5°C | 8.4°C | 6.4°C | 13.5°C | 3.7°C | 242 mm | 85% | 3.2 m/s | 3.1 |
| 1995 | 10.9°C | 8.6°C | 6.3°C | 13.9°C | 3.2°C | 90 mm | 84% | 2.8 m/s | 3.3 |
| 1994 ❄️ | 10.4°C | 8.1°C | 5.7°C | 14.1°C | 2.4°C | 101 mm | 84% | 3.1 m/s | 3.5 |
| 1993 | 12.3°C | 9.7°C | 7.2°C | 16.6°C | 2.7°C | 84 mm | 84% | 2.3 m/s | 3.7 |
| 1992 | 10.6°C | 8.3°C | 6.0°C | 13.4°C | 3.4°C | 134 mm | 84% | 2.6 m/s | 3.3 |
| 1991 | 11.0°C | 8.6°C | 6.3°C | 13.9°C | 3.0°C | 121 mm | 87% | 2.7 m/s | 3.2 |
| 1990 | 12.1°C | 9.5°C | 6.9°C | 14.7°C | 2.4°C | 107 mm | 84% | 2.4 m/s | 3.5 |
| 1989 | 11.8°C | 9.5°C | 7.1°C | 15.2°C | 4.4°C | 153 mm | 86% | 2.5 m/s | 3.5 |
| 1988 | 12.9°C | 10.6°C | 8.4°C | 15.3°C | 4.3°C | 139 mm | 86% | 2.8 m/s | 3.2 |
| 1987 | 12.7°C | 9.9°C | 7.2°C | 17.7°C | 4.1°C | 89 mm | 85% | 2.7 m/s | 3.5 |
| 1986 | 11.4°C | 9.3°C | 7.1°C | 14.5°C | 3.4°C | 116 mm | 85% | 2.7 m/s | 3.2 |
| 1985 | 12.4°C | 9.5°C | 6.5°C | 15.1°C | 3.5°C | 43 mm | 84% | 2.3 m/s | 3.8 |
| 1984 | 11.2°C | 8.9°C | 6.5°C | 13.9°C | 2.8°C | 163 mm | 86% | 2.6 m/s | 3.3 |
| 1983 | 11.6°C | 9.4°C | 7.2°C | 14.3°C | 4.0°C | 136 mm | 84% | 3.1 m/s | — |
| 1982 | 12.0°C | 9.4°C | 6.7°C | 15.7°C | 3.7°C | 110 mm | 83% | 2.9 m/s | — |
| 1981 | 12.6°C | 10.2°C | 7.9°C | 14.1°C | 3.9°C | 78 mm | 85% | 3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 12°C with lows near 7.3°C (mean 9.7°C), based on 45 years of NASA POWER data.
September averages 114 mm of rainfall in Burnie, a relatively wet time of year. The wettest on record was 242 mm in 1996.
The hottest September reached 18°C in 2023. The coldest dipped to 2.4°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.6°C. Daytime highs moved from 12°C to 12.5°C and overnight lows from 7°C to 7.8°C over the same span.
September is one of the cooler months of the year in Burnie and a relatively wet time of year, so plan for around 12°C daytime highs and 7.3°C at night.
Not quite — September is the 3rd coolest month in Burnie, averaging 9.7°C.
For September in Burnie, pack warm layers and a jacket for chilly mornings, with typical highs of 12°C and lows of 7.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 84% — quite humid.
Average wind speed in September is 2.8 m/s. The windiest September on record averaged 3.8 m/s (2003).
The wettest September on record was 1996 with 242 mm. On average, September sees 114 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Burnie behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
