September is one of the cooler months of the year in Proserpine, with average highs near 26.1°C and lows around 19.2°C (mean 22.7°C). It is one of the drier months, averaging 14 mm of rainfall and 70% relative humidity across the period.
September is one of the cooler months of the year in Proserpine. Across 45 years of records, the warmest September in Proserpine was 2010 — when the month averaged 24.2°C — while the coldest was 1990 at 20.6°C. Typical September days reach 26.1°C with nights near 19.2°C. The long-term September temperature trend is broadly flat.
September is one of the drier months in Proserpine, averaging 14 mm of rainfall. The wettest September on record was 2010 with 93 mm, while the driest was 2019 at 0 mm.
Relative humidity in Proserpine during September averages 70%. The most humid September was 1998 at 80%, and the least humid was 1991 at 60%.
September receives about 6.1 kWh/m²/day of solar energy in Proserpine. The sunniest Septembers were 2003 and 2019 at 6.7 kWh/m²/day, and the cloudiest was 2010 at 4.7.
Average wind speed in Proserpine during September is 2.5 m/s. The windiest September was 1981 at 3.2 m/s, while the calmest was 1984 at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.5°C | 22.4°C | 22.7°C | 22.8°C | 22.8°C | +0.3°C |
| Avg High | 26.1°C | 25.9°C | 26.2°C | 26.2°C | 26.0°C | -0.1°C |
| Avg Low | 18.9°C | 19.0°C | 19.2°C | 19.4°C | 19.7°C | +0.8°C |
| Avg Rain | 11 mm | 19 mm | 10 mm | 18 mm | 9 mm | -2 mm |
September temperatures in Proserpine have risen by about 0.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 12.9°C (1985) to a record high of 33°C (1982).
Rainfall in September is one of the drier months, averaging 14 mm, with a wettest year of 93 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Proserpine
September is one of the best times to visit Proserpine. Expect days averaging 26.1°C and nights around 19.2°C (mean 22.7°C) — cooler than Proserpine's yearly average — with low rainfall (14 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 | 26.3°C | 23.1°C | 19.9°C | 30.3°C | 16.1°C | 8 mm | 72% | 2.7 m/s | 6.2 |
| 2024 | 26.7°C | 23.5°C | 20.3°C | 32.0°C | 18.9°C | 7 mm | 70% | 2.7 m/s | 5.7 |
| 2023 | 25.8°C | 22.8°C | 19.8°C | 30.0°C | 18.4°C | 8 mm | 71% | 3 m/s | 6.2 |
| 2022 | 26.7°C | 23.2°C | 19.6°C | 30.5°C | 14.7°C | 19 mm | 75% | 2.1 m/s | 6 |
| 2021 | 25.0°C | 21.9°C | 18.8°C | 30.5°C | 14.5°C | 3 mm | 69% | 2.9 m/s | 6.2 |
| 2020 | 25.5°C | 22.6°C | 19.8°C | 30.2°C | 17.5°C | 8 mm | 73% | 3.1 m/s | 5.9 |
| 2019 | 26.1°C | 22.1°C | 18.1°C | 30.1°C | 14.8°C | 0 mm | 66% | 2.4 m/s | 6.7 |
| 2018 | 26.0°C | 22.7°C | 19.4°C | 31.1°C | 17.9°C | 5 mm | 69% | 2.6 m/s | 6.5 |
| 2017 | 26.7°C | 23.0°C | 19.2°C | 31.3°C | 17.5°C | 1 mm | 69% | 2.3 m/s | 6.6 |
| 2016 | 26.7°C | 23.6°C | 20.5°C | 31.2°C | 17.8°C | 33 mm | 77% | 2.3 m/s | 5.4 |
| 2015 | 25.9°C | 22.5°C | 19.2°C | 30.1°C | 17.4°C | 11 mm | 68% | 2.7 m/s | 6.2 |
| 2014 | 25.6°C | 22.2°C | 18.7°C | 28.5°C | 14.4°C | 23 mm | 71% | 2.3 m/s | 6.2 |
| 2013 | 27.5°C | 23.9°C | 20.2°C | 31.9°C | 17.7°C | 7 mm | 70% | 2.6 m/s | 6.3 |
| 2012 | 25.7°C | 22.2°C | 18.8°C | 29.4°C | 16.8°C | 5 mm | 70% | 2.4 m/s | 6.2 |
| 2011 | 24.9°C | 21.4°C | 17.9°C | 30.6°C | 14.1°C | 3 mm | 69% | 2.7 m/s | 6.3 |
| 2010 🔥 🌧️ | 26.9°C | 24.2°C | 21.5°C | 32.1°C | 18.9°C | 93 mm | 80% | 2.4 m/s | 4.7 |
| 2009 | 27.2°C | 23.7°C | 20.1°C | 32.2°C | 17.7°C | 1 mm | 65% | 2.4 m/s | 6.3 |
| 2008 | 25.5°C | 22.3°C | 19.1°C | 28.0°C | 16.9°C | 14 mm | 74% | 2.4 m/s | 6.1 |
| 2007 | 25.7°C | 22.2°C | 18.6°C | 30.4°C | 16.8°C | 28 mm | 74% | 2.3 m/s | 6.1 |
| 2006 | 25.0°C | 21.8°C | 18.7°C | 30.1°C | 13.4°C | 18 mm | 70% | 3 m/s | 6.1 |
| 2005 | 26.2°C | 22.7°C | 19.2°C | 30.4°C | 17.3°C | 1 mm | 68% | 2.3 m/s | 6.4 |
| 2004 | 25.4°C | 22.1°C | 18.7°C | 28.3°C | 15.3°C | 3 mm | 67% | 2.6 m/s | 6.3 |
| 2003 | 27.1°C | 23.2°C | 19.3°C | 32.7°C | 16.1°C | 1 mm | 63% | 2.3 m/s | 6.7 |
| 2002 | 27.0°C | 23.1°C | 19.1°C | 30.6°C | 16.3°C | 9 mm | 68% | 2.3 m/s | 6.5 |
| 2001 | 26.5°C | 23.2°C | 19.9°C | 30.7°C | 16.8°C | 20 mm | 69% | 2.8 m/s | 5.9 |
| 2000 | 26.2°C | 22.7°C | 19.2°C | 31.0°C | 17.5°C | 0 mm | 66% | 2.6 m/s | 6.5 |
| 1999 | 25.2°C | 22.0°C | 18.8°C | 29.9°C | 17.1°C | 24 mm | 72% | 2.9 m/s | 6.1 |
| 1998 | 25.3°C | 22.8°C | 20.3°C | 27.3°C | 17.4°C | 32 mm | 80% | 2.6 m/s | 5.6 |
| 1997 | 26.9°C | 23.2°C | 19.5°C | 31.4°C | 17.1°C | 13 mm | 71% | 2.5 m/s | 6.2 |
| 1996 | 26.4°C | 22.3°C | 18.1°C | 30.6°C | 13.7°C | 31 mm | 64% | 2.4 m/s | 6.5 |
| 1995 | 25.4°C | 22.0°C | 18.6°C | 30.9°C | 13.6°C | 5 mm | 71% | 2.4 m/s | 6.3 |
| 1994 | 25.6°C | 21.9°C | 18.2°C | 30.8°C | 16.2°C | 7 mm | 67% | 2.4 m/s | 6.3 |
| 1993 | 25.4°C | 22.3°C | 19.3°C | 29.8°C | 17.3°C | 38 mm | 73% | 2.8 m/s | 5.5 |
| 1992 | 27.3°C | 23.9°C | 20.4°C | 31.4°C | 16.8°C | 34 mm | 71% | 2.2 m/s | 5.6 |
| 1991 | 27.3°C | 23.2°C | 19.0°C | 30.9°C | 16.3°C | 0 mm | 60% | 2.3 m/s | 6.6 |
| 1990 ❄️ | 23.9°C | 20.6°C | 17.3°C | 26.3°C | 12.9°C | 4 mm | 68% | 2.9 m/s | 6.2 |
| 1989 | 26.3°C | 22.3°C | 18.4°C | 32.3°C | 14.6°C | 0 mm | 69% | 2.3 m/s | 6.4 |
| 1988 | 26.1°C | 22.3°C | 18.6°C | 31.1°C | 15.0°C | 5 mm | 71% | 2.4 m/s | 6.2 |
| 1987 | 25.3°C | 22.2°C | 19.1°C | 28.4°C | 16.0°C | 4 mm | 68% | 2.8 m/s | 5.7 |
| 1986 | 26.5°C | 22.9°C | 19.3°C | 32.6°C | 17.2°C | 22 mm | 68% | 2.4 m/s | 5.9 |
| 1985 | 26.2°C | 22.1°C | 18.1°C | 31.4°C | 12.9°C | 3 mm | 65% | 2.5 m/s | 6.4 |
| 1984 | 26.8°C | 22.9°C | 19.1°C | 29.9°C | 15.0°C | 24 mm | 66% | 2 m/s | 6.1 |
| 1983 | 26.8°C | 23.4°C | 19.9°C | 30.9°C | 17.0°C | 20 mm | 74% | 2.3 m/s | — |
| 1982 | 25.2°C | 21.5°C | 17.9°C | 33.0°C | 15.1°C | 8 mm | 70% | 2.3 m/s | — |
| 1981 | 25.4°C | 22.5°C | 19.5°C | 29.7°C | 15.9°C | 10 mm | 67% | 3.2 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 26.1°C with lows near 19.2°C (mean 22.7°C), based on 45 years of NASA POWER data.
September averages 14 mm of rainfall in Proserpine, one of the drier months. The wettest on record was 93 mm in 2010.
The hottest September reached 33°C in 1982. The coldest dipped to 12.9°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.4°C. Daytime highs moved from 26.1°C to 26.1°C and overnight lows from 18.9°C to 19.7°C over the same span.
September is one of the cooler months of the year in Proserpine and one of the drier months, so plan for around 26.1°C daytime highs and 19.2°C at night.
Not quite — September is the 4th coolest month in Proserpine, averaging 22.7°C.
For September in Proserpine, pack light layers you can adjust through the day, with typical highs of 26.1°C and lows of 19.2°C.
Relative humidity in September averages 70% — moderately humid.
Average wind speed in September is 2.5 m/s. The windiest September on record averaged 3.2 m/s (1981).
The wettest September on record was 2010 with 93 mm. On average, September sees 14 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 Proserpine 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.
