September is one of the cooler months of the year in Innisfail, with average highs near 25.3°C and lows around 21.8°C (mean 23.6°C). It is one of the drier months, averaging 39 mm of rainfall and 74% relative humidity across the period.
September is one of the cooler months of the year in Innisfail. Across 45 years of records, the warmest September in Innisfail was 2010 — when the month averaged 25°C — while the coldest was 1990 at 22.1°C. Typical September days reach 25.3°C with nights near 21.8°C. The long-term trend is warming, about 0.2°C per decade.
September is one of the drier months in Innisfail, averaging 39 mm of rainfall. The wettest September on record was 1998 with 165 mm, while the driest was 1991 at 0 mm.
Relative humidity in Innisfail during September averages 74%. The most humid September was 2010 at 82%, and the least humid was 1991 at 66%.
September receives about 6 kWh/m²/day of solar energy in Innisfail. The sunniest September was 2019 at 6.6 kWh/m²/day, and the cloudiest were 1987, 2010 and 2025 at 5.4.
Average wind speed in Innisfail during September is 3.1 m/s. The windiest Septembers were 1981 and 1990 at 3.9 m/s, while the calmest was 1984 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.4°C | 23.4°C | 23.5°C | 23.7°C | 24.1°C | +0.7°C |
| Avg High | 25.2°C | 25.1°C | 25.3°C | 25.4°C | 25.6°C | +0.4°C |
| Avg Low | 21.6°C | 21.6°C | 21.7°C | 21.9°C | 22.5°C | +0.9°C |
| Avg Rain | 50 mm | 52 mm | 34 mm | 29 mm | 28 mm | -21 mm |
September temperatures in Innisfail have risen by about 0.8°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 17.5°C (2006) to a record high of 29.9°C (2003).
Rainfall in September is one of the drier months, averaging 39 mm, with a wettest year of 165 mm.
One of the best times to visit Innisfail
September is one of the best times to visit Innisfail. Expect days averaging 25.3°C and nights around 21.8°C (mean 23.6°C) — cooler than Innisfail's yearly average — with moderate rainfall (39 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 25.8°C | 24.2°C | 22.6°C | 27.6°C | 21.2°C | 77 mm | 77% | 3.3 m/s | 5.4 |
| 2024 | 25.8°C | 24.2°C | 22.6°C | 28.1°C | 21.7°C | 14 mm | 76% | 3.4 m/s | 5.6 |
| 2023 | 25.4°C | 23.9°C | 22.4°C | 27.1°C | 21.3°C | 25 mm | 73% | 3.8 m/s | 6 |
| 2022 | 26.2°C | 24.7°C | 23.1°C | 28.4°C | 20.4°C | 14 mm | 78% | 2.8 m/s | 6 |
| 2021 | 25.1°C | 23.6°C | 22.1°C | 26.7°C | 20.5°C | 12 mm | 73% | 3.7 m/s | 5.5 |
| 2020 | 25.2°C | 23.7°C | 22.3°C | 27.0°C | 20.9°C | 27 mm | 77% | 3.7 m/s | 5.7 |
| 2019 | 24.8°C | 22.9°C | 21.0°C | 26.6°C | 19.2°C | 2 mm | 68% | 3.1 m/s | 6.6 |
| 2018 | 25.3°C | 23.6°C | 21.8°C | 26.9°C | 20.8°C | 4 mm | 72% | 3.2 m/s | 6.3 |
| 2017 | 25.4°C | 23.7°C | 22.0°C | 27.2°C | 20.3°C | 13 mm | 73% | 2.9 m/s | 6 |
| 2016 | 26.3°C | 24.7°C | 23.1°C | 28.5°C | 22.3°C | 40 mm | 80% | 2.8 m/s | 5.8 |
| 2015 | 25.3°C | 23.5°C | 21.8°C | 27.8°C | 20.9°C | 10 mm | 72% | 3.1 m/s | 6.1 |
| 2014 | 25.1°C | 23.2°C | 21.2°C | 26.6°C | 19.5°C | 7 mm | 73% | 2.7 m/s | 6.5 |
| 2013 | 26.0°C | 24.0°C | 21.9°C | 28.2°C | 21.0°C | 40 mm | 74% | 2.8 m/s | 6.3 |
| 2012 | 25.2°C | 23.4°C | 21.7°C | 26.7°C | 20.9°C | 16 mm | 75% | 2.8 m/s | 5.8 |
| 2011 | 24.4°C | 22.7°C | 21.0°C | 28.9°C | 18.6°C | 29 mm | 73% | 3.4 m/s | 5.8 |
| 2010 🔥 | 26.3°C | 25.0°C | 23.6°C | 27.5°C | 21.6°C | 131 mm | 82% | 3 m/s | 5.4 |
| 2009 | 26.1°C | 24.3°C | 22.5°C | 28.4°C | 21.4°C | 3 mm | 70% | 2.9 m/s | 6.2 |
| 2008 | 25.2°C | 23.6°C | 22.0°C | 27.1°C | 21.3°C | 62 mm | 78% | 3.2 m/s | 5.6 |
| 2007 | 25.1°C | 22.9°C | 20.8°C | 27.9°C | 19.5°C | 14 mm | 74% | 2.7 m/s | 6.4 |
| 2006 | 23.8°C | 22.4°C | 20.9°C | 25.8°C | 17.5°C | 136 mm | 76% | 3.6 m/s | 6 |
| 2005 | 25.3°C | 23.6°C | 21.8°C | 26.5°C | 20.9°C | 10 mm | 73% | 2.9 m/s | 6.1 |
| 2004 | 24.6°C | 23.1°C | 21.6°C | 26.2°C | 20.7°C | 32 mm | 72% | 3.4 m/s | 5.9 |
| 2003 | 25.8°C | 23.8°C | 21.9°C | 29.9°C | 20.5°C | 7 mm | 69% | 2.8 m/s | 6.5 |
| 2002 | 25.6°C | 23.6°C | 21.6°C | 27.5°C | 20.0°C | 19 mm | 73% | 2.6 m/s | 6.4 |
| 2001 | 25.6°C | 23.9°C | 22.2°C | 27.6°C | 21.4°C | 42 mm | 75% | 3.3 m/s | 5.9 |
| 2000 | 25.5°C | 23.6°C | 21.8°C | 28.7°C | 20.3°C | 14 mm | 73% | 3.2 m/s | 6 |
| 1999 | 24.7°C | 23.0°C | 21.4°C | 26.3°C | 20.4°C | 66 mm | 76% | 3.3 m/s | 6.1 |
| 1998 🌧️ | 25.3°C | 24.2°C | 23.0°C | 26.3°C | 21.8°C | 165 mm | 82% | 3.2 m/s | 5.7 |
| 1997 | 25.4°C | 23.5°C | 21.7°C | 27.2°C | 20.3°C | 25 mm | 75% | 2.7 m/s | 6.3 |
| 1996 | 25.6°C | 23.3°C | 21.0°C | 29.6°C | 19.1°C | 9 mm | 69% | 2.9 m/s | 6.3 |
| 1995 | 24.8°C | 23.1°C | 21.3°C | 27.9°C | 19.4°C | 10 mm | 75% | 2.9 m/s | 6.3 |
| 1994 | 24.6°C | 22.6°C | 20.5°C | 29.5°C | 19.6°C | 25 mm | 73% | 2.7 m/s | 6.3 |
| 1993 | 24.8°C | 23.2°C | 21.6°C | 26.6°C | 20.9°C | 93 mm | 76% | 3.1 m/s | 6 |
| 1992 | 26.5°C | 24.6°C | 22.8°C | 29.7°C | 21.5°C | 41 mm | 76% | 2.6 m/s | 6 |
| 1991 | 25.9°C | 23.9°C | 21.9°C | 27.7°C | 20.0°C | 0 mm | 66% | 2.8 m/s | 6.3 |
| 1990 ❄️ | 23.8°C | 22.1°C | 20.5°C | 24.8°C | 17.6°C | 90 mm | 71% | 3.9 m/s | 5.7 |
| 1989 | 25.5°C | 23.5°C | 21.5°C | 29.0°C | 20.3°C | 12 mm | 72% | 2.8 m/s | 6 |
| 1988 | 25.4°C | 23.5°C | 21.7°C | 28.4°C | 19.9°C | 53 mm | 75% | 3.1 m/s | 5.9 |
| 1987 | 24.4°C | 22.9°C | 21.4°C | 26.0°C | 20.1°C | 72 mm | 76% | 3.5 m/s | 5.4 |
| 1986 | 26.0°C | 24.1°C | 22.2°C | 29.3°C | 20.9°C | 45 mm | 76% | 2.8 m/s | 5.9 |
| 1985 | 24.8°C | 22.8°C | 20.8°C | 27.3°C | 18.3°C | 29 mm | 71% | 3 m/s | 6.2 |
| 1984 | 25.8°C | 23.8°C | 21.8°C | 28.8°C | 20.6°C | 5 mm | 74% | 2.4 m/s | 6 |
| 1983 | 25.8°C | 24.0°C | 22.2°C | 27.9°C | 20.3°C | 79 mm | 77% | 2.9 m/s | — |
| 1982 | 24.4°C | 22.5°C | 20.6°C | 28.7°C | 18.9°C | 30 mm | 73% | 2.9 m/s | — |
| 1981 | 24.8°C | 23.3°C | 21.8°C | 26.9°C | 20.6°C | 121 mm | 74% | 3.9 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 25.3°C with lows near 21.8°C (mean 23.6°C), based on 45 years of NASA POWER data.
September averages 39 mm of rainfall in Innisfail, one of the drier months. The wettest on record was 165 mm in 1998.
The hottest September reached 29.9°C in 2003. The coldest dipped to 17.5°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.8°C. Daytime highs moved from 25.1°C to 25.7°C and overnight lows from 21.4°C to 22.6°C over the same span.
September is one of the cooler months of the year in Innisfail and one of the drier months, so plan for around 25.3°C daytime highs and 21.8°C at night.
Not quite — September is the 4th coolest month in Innisfail, averaging 23.6°C.
For September in Innisfail, pack light layers you can adjust through the day, with typical highs of 25.3°C and lows of 21.8°C.
Relative humidity in September averages 74% — moderately humid.
Average wind speed in September is 3.1 m/s. The windiest September on record averaged 3.9 m/s (1981).
The wettest September on record was 1998 with 165 mm. On average, September sees 39 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 Innisfail 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.
