September is one of the cooler months of the year in Newman, with average highs near 30.9°C and lows around 13.1°C (mean 22°C). It is one of the drier months, averaging 5 mm of rainfall and 27% relative humidity across the period.
September is one of the cooler months of the year in Newman. Across 45 years of records, the warmest September in Newman was 2023 — when the month averaged 25.8°C — while the coldest was 2010 at 18.7°C. Typical September days reach 30.9°C with nights near 13.1°C. The long-term September temperature trend is broadly flat.
September is one of the drier months in Newman, averaging 5 mm of rainfall. The wettest September on record was 2010 with 37 mm, while the driest were 2021, 2023 and 2025, among others at 0 mm.
Relative humidity in Newman during September averages 27%. The most humid September was 2010 at 41%, and the least humid was 1981 at 18%.
September receives about 6.7 kWh/m²/day of solar energy in Newman. The sunniest September was 2016 at 7.1 kWh/m²/day, and the cloudiest was 2024 at 5.9.
Average wind speed in Newman during September is 3.3 m/s. The windiest September was 2011 at 3.7 m/s, while the calmest were 1997 and 2014 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.1°C | 21.5°C | 22.2°C | 21.7°C | 22.8°C | +0.7°C |
| Avg High | 31.0°C | 30.4°C | 31.2°C | 30.7°C | 31.4°C | +0.4°C |
| Avg Low | 13.2°C | 12.6°C | 13.2°C | 12.8°C | 14.3°C | +1.1°C |
| Avg Rain | 6 mm | 1 mm | 4 mm | 4 mm | 11 mm | +4 mm |
September temperatures in Newman have stayed relatively stable across the record.
September has ranged from a record low of 4.1°C (1993) to a record high of 39.5°C (1998).
Rainfall in September is one of the drier months, averaging 5 mm, with a wettest year of 37 mm.
One of the best times to visit Newman
September is one of the best times to visit Newman. Expect days averaging 30.9°C and nights around 13.1°C (mean 22°C) — cooler than Newman's yearly average — with low rainfall (5 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 | 30.3°C | 21.6°C | 12.9°C | 36.0°C | 8.1°C | 0 mm | 24% | 3.5 m/s | 6.8 |
| 2024 | 30.8°C | 23.4°C | 16.0°C | 38.0°C | 12.1°C | 35 mm | 37% | 3.6 m/s | 5.9 |
| 2023 🔥 | 34.5°C | 25.8°C | 17.1°C | 39.0°C | 10.2°C | 0 mm | 22% | 3.2 m/s | 6.7 |
| 2022 | 28.8°C | 20.6°C | 12.4°C | 36.3°C | 8.6°C | 29 mm | 35% | 3.4 m/s | 6.2 |
| 2021 | 30.3°C | 21.2°C | 12.1°C | 35.3°C | 7.7°C | 0 mm | 21% | 3.6 m/s | 6.9 |
| 2020 | 33.5°C | 24.3°C | 15.1°C | 37.7°C | 9.9°C | 0 mm | 21% | 3.2 m/s | 6.9 |
| 2019 | 32.4°C | 23.3°C | 14.1°C | 37.6°C | 7.8°C | 0 mm | 20% | 3 m/s | 6.9 |
| 2018 | 31.2°C | 22.1°C | 13.1°C | 37.7°C | 8.8°C | 0 mm | 22% | 3.2 m/s | 6.9 |
| 2017 | 31.0°C | 22.3°C | 13.6°C | 36.0°C | 9.1°C | 2 mm | 26% | 3.4 m/s | 6.8 |
| 2016 | 28.6°C | 19.6°C | 10.5°C | 33.9°C | 6.7°C | 0 mm | 29% | 3.3 m/s | 7.1 |
| 2015 | 30.6°C | 21.5°C | 12.4°C | 36.1°C | 7.0°C | 0 mm | 26% | 3.2 m/s | 6.9 |
| 2014 | 32.9°C | 23.7°C | 14.5°C | 36.4°C | 9.1°C | 0 mm | 23% | 2.9 m/s | 6.8 |
| 2013 | 31.6°C | 22.6°C | 13.6°C | 36.0°C | 8.3°C | 0 mm | 30% | 3.3 m/s | 6.8 |
| 2012 | 31.7°C | 22.9°C | 14.2°C | 36.0°C | 8.0°C | 1 mm | 26% | 3.4 m/s | 6.8 |
| 2011 | 29.9°C | 20.6°C | 11.3°C | 35.7°C | 6.9°C | 0 mm | 25% | 3.7 m/s | 7 |
| 2010 ❄️ 🌧️ | 26.8°C | 18.7°C | 10.6°C | 36.6°C | 5.2°C | 37 mm | 41% | 3.6 m/s | 6.3 |
| 2009 | 30.6°C | 21.4°C | 12.3°C | 34.7°C | 9.1°C | 1 mm | 24% | 3.6 m/s | 7 |
| 2008 | 31.2°C | 22.3°C | 13.4°C | 37.6°C | 8.6°C | 2 mm | 27% | 3.4 m/s | 6.8 |
| 2007 | 32.1°C | 22.8°C | 13.4°C | 36.1°C | 9.0°C | 0 mm | 22% | 3.4 m/s | 7 |
| 2006 | 32.4°C | 23.4°C | 14.4°C | 37.3°C | 12.5°C | 30 mm | 30% | 3 m/s | 6.6 |
| 2005 | 30.0°C | 21.1°C | 12.2°C | 34.6°C | 6.7°C | 0 mm | 35% | 3.3 m/s | 6.8 |
| 2004 | 30.3°C | 21.3°C | 12.2°C | 36.6°C | 5.2°C | 3 mm | 26% | 3.3 m/s | 6.6 |
| 2003 | 31.2°C | 22.2°C | 13.1°C | 37.7°C | 9.3°C | 0 mm | 28% | 3.3 m/s | 6.8 |
| 2002 | 31.1°C | 21.8°C | 12.4°C | 35.6°C | 7.7°C | 0 mm | 23% | 3.2 m/s | 6.8 |
| 2001 | 30.4°C | 21.9°C | 13.3°C | 35.9°C | 5.0°C | 2 mm | 27% | 3.2 m/s | 6.2 |
| 2000 | 32.6°C | 23.7°C | 14.8°C | 38.7°C | 7.3°C | 0 mm | 25% | 3.1 m/s | 6.4 |
| 1999 | 31.0°C | 22.0°C | 13.0°C | 37.0°C | 6.7°C | 0 mm | 26% | 3.3 m/s | 6.7 |
| 1998 | 29.4°C | 21.1°C | 12.7°C | 39.5°C | 7.3°C | 0 mm | 37% | 3.5 m/s | 6.6 |
| 1997 | 31.3°C | 22.0°C | 12.7°C | 36.6°C | 7.8°C | 9 mm | 33% | 2.9 m/s | 6.8 |
| 1996 | 31.3°C | 22.1°C | 12.9°C | 35.4°C | 9.2°C | 0 mm | 28% | 3.5 m/s | 6.9 |
| 1995 | 31.9°C | 23.4°C | 15.0°C | 36.4°C | 10.2°C | 0 mm | 31% | 3 m/s | 6.4 |
| 1994 | 32.6°C | 23.2°C | 13.8°C | 36.7°C | 9.1°C | 0 mm | 19% | 3 m/s | 6.8 |
| 1993 | 28.0°C | 19.5°C | 11.0°C | 32.8°C | 4.1°C | 0 mm | 34% | 3.3 m/s | 6.8 |
| 1992 | 27.6°C | 19.2°C | 10.7°C | 34.4°C | 5.0°C | 4 mm | 38% | 3.3 m/s | 6.3 |
| 1991 | 30.1°C | 21.0°C | 11.9°C | 37.5°C | 6.7°C | 0 mm | 28% | 3 m/s | 6.9 |
| 1990 | 30.9°C | 21.7°C | 12.5°C | 35.5°C | 7.1°C | 0 mm | 23% | 3.6 m/s | 6.7 |
| 1989 | 31.7°C | 22.3°C | 13.0°C | 36.2°C | 10.6°C | 0 mm | 24% | 3.2 m/s | 6.9 |
| 1988 | 31.2°C | 21.6°C | 12.0°C | 36.6°C | 7.7°C | 0 mm | 23% | 3.1 m/s | 6.6 |
| 1987 | 30.6°C | 21.9°C | 13.1°C | 35.6°C | 9.2°C | 0 mm | 21% | 3.5 m/s | 6.7 |
| 1986 | 30.5°C | 21.6°C | 12.6°C | 35.4°C | 8.0°C | 22 mm | 30% | 3 m/s | 6.2 |
| 1985 | 31.6°C | 22.5°C | 13.4°C | 35.9°C | 7.4°C | 0 mm | 22% | 3.2 m/s | 7 |
| 1984 | 28.3°C | 19.7°C | 11.2°C | 32.9°C | 5.1°C | 2 mm | 35% | 3.2 m/s | 6.7 |
| 1983 | 32.6°C | 23.6°C | 14.7°C | 38.0°C | 10.7°C | 0 mm | 26% | 3.2 m/s | — |
| 1982 | 29.6°C | 21.6°C | 13.6°C | 35.1°C | 9.4°C | 32 mm | 35% | 3.5 m/s | — |
| 1981 | 33.3°C | 24.2°C | 15.1°C | 37.2°C | 10.8°C | 0 mm | 18% | 3.1 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30.9°C with lows near 13.1°C (mean 22°C), based on 45 years of NASA POWER data.
September averages 5 mm of rainfall in Newman, one of the drier months. The wettest on record was 37 mm in 2010.
The hottest September reached 39.5°C in 1998. The coldest dipped to 4.1°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 13.6°C to 14.1°C while daytime highs eased from 31.1°C to 30.9°C, narrowing the gap between day and night.
September is one of the cooler months of the year in Newman and one of the drier months, so plan for around 30.9°C daytime highs and 13.1°C at night.
Not quite — September is the 5th coolest month in Newman, averaging 22°C.
For September in Newman, pack light, breathable clothing and sun protection, with typical highs of 30.9°C and lows of 13.1°C.
Relative humidity in September averages 27% — relatively dry.
Average wind speed in September is 3.3 m/s. The windiest September on record averaged 3.7 m/s (2011).
The wettest September on record was 2010 with 37 mm. On average, September sees 5 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 Newman 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.
