October is one of the cooler months of the year in Onslow, with average highs near 28.2°C and lows around 21.1°C (mean 24.7°C). It is one of the drier months, averaging 1 mm of rainfall and 60% relative humidity across the period.
October is one of the cooler months of the year in Onslow. Across 45 years of records, the warmest October in Onslow was 2023 — when the month averaged 28°C — while the coldest was 2005 at 22.4°C. Typical October days reach 28.2°C with nights near 21.1°C. The long-term trend is warming, about 0.2°C per decade.
October is one of the drier months in Onslow, averaging 1 mm of rainfall. The wettest October on record was 2008 with 10 mm, while the driest were 2022, 2023 and 2025, among others at 0 mm.
Relative humidity in Onslow during October averages 60%. The most humid October was 1987 at 67%, and the least humid was 2023 at 53%.
October receives about 7.4 kWh/m²/day of solar energy in Onslow. The sunniest October was 2002 at 7.9 kWh/m²/day, and the cloudiest was 2008 at 6.9.
Average wind speed in Onslow during October is 5.2 m/s. The windiest Octobers were 1989 and 1991 at 5.9 m/s, while the calmest was 2023 at 4.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.4°C | 24.4°C | 24.5°C | 25.1°C | 25.0°C | +0.6°C |
| Avg High | 27.9°C | 28.0°C | 28.1°C | 28.6°C | 28.6°C | +0.7°C |
| Avg Low | 20.8°C | 20.7°C | 20.8°C | 21.7°C | 21.5°C | +0.7°C |
| Avg Rain | 1 mm | 0 mm | 1 mm | 1 mm | 0 mm | 0 mm |
October temperatures in Onslow have risen by about 0.4°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 15°C (1992) to a record high of 38.1°C (2002).
Rainfall in October is one of the drier months, averaging 1 mm, with a wettest year of 10 mm.
A good time to visit Onslow
October is a good time to visit Onslow, with days averaging 28.2°C and nights around 21.1°C (mean 24.7°C, close to Onslow's yearly average) and low rainfall. September and August are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.1°C | 25.4°C | 21.6°C | 34.9°C | 19.3°C | 0 mm | 57% | 5.6 m/s | 7.4 |
| 2024 | 29.5°C | 25.9°C | 22.4°C | 33.1°C | 19.1°C | 2 mm | 58% | 5 m/s | 7.2 |
| 2023 🔥 | 32.0°C | 28.0°C | 24.1°C | 37.0°C | 19.2°C | 0 mm | 53% | 4.1 m/s | 7.4 |
| 2022 | 26.9°C | 23.5°C | 20.1°C | 28.8°C | 18.5°C | 0 mm | 59% | 5.7 m/s | 7.7 |
| 2021 | 27.2°C | 23.7°C | 20.1°C | 31.8°C | 17.8°C | 0 mm | 61% | 5.5 m/s | 7.6 |
| 2020 | 26.9°C | 23.7°C | 20.4°C | 30.7°C | 17.3°C | 0 mm | 63% | 5.6 m/s | 7.6 |
| 2019 | 30.1°C | 25.9°C | 21.7°C | 35.5°C | 18.5°C | 0 mm | 55% | 5.2 m/s | 7.6 |
| 2018 | 27.3°C | 23.8°C | 20.4°C | 30.1°C | 18.1°C | 0 mm | 64% | 5.6 m/s | 7.6 |
| 2017 | 27.8°C | 24.2°C | 20.7°C | 33.0°C | 18.2°C | 0 mm | 61% | 5.4 m/s | 7.6 |
| 2016 | 28.3°C | 24.9°C | 21.5°C | 31.8°C | 16.6°C | 1 mm | 59% | 4.8 m/s | 7.2 |
| 2015 | 30.7°C | 26.9°C | 23.2°C | 34.1°C | 21.3°C | 0 mm | 57% | 5 m/s | 7.3 |
| 2014 | 28.0°C | 24.4°C | 20.9°C | 31.3°C | 18.7°C | 0 mm | 63% | 5.6 m/s | 7.4 |
| 2013 | 28.6°C | 25.3°C | 22.0°C | 31.6°C | 19.0°C | 2 mm | 61% | 4.7 m/s | 7.3 |
| 2012 | 28.7°C | 25.3°C | 21.9°C | 31.7°C | 19.3°C | 1 mm | 64% | 4.8 m/s | 7.3 |
| 2011 | 26.8°C | 23.8°C | 20.8°C | 30.0°C | 18.1°C | 0 mm | 65% | 5.3 m/s | 7.2 |
| 2010 | 29.8°C | 26.6°C | 23.4°C | 32.8°C | 21.5°C | 0 mm | 58% | 4.7 m/s | 7.4 |
| 2009 | 28.0°C | 24.3°C | 20.7°C | 32.1°C | 16.6°C | 1 mm | 60% | 5.1 m/s | 7.3 |
| 2008 🌧️ | 29.4°C | 25.8°C | 22.1°C | 33.3°C | 18.8°C | 10 mm | 57% | 4.8 m/s | 6.9 |
| 2007 | 28.0°C | 24.5°C | 20.9°C | 31.2°C | 18.7°C | 0 mm | 62% | 5.4 m/s | 7.4 |
| 2006 | 29.5°C | 25.9°C | 22.3°C | 33.1°C | 18.7°C | 0 mm | 59% | 5 m/s | 7 |
| 2005 ❄️ | 26.0°C | 22.4°C | 18.9°C | 28.3°C | 17.5°C | 0 mm | 63% | 5.8 m/s | 7.5 |
| 2004 | 29.4°C | 25.2°C | 21.0°C | 34.4°C | 18.2°C | 0 mm | 58% | 5.2 m/s | 7.4 |
| 2003 | 27.1°C | 23.7°C | 20.3°C | 30.0°C | 17.3°C | 0 mm | 62% | 5.3 m/s | 7.5 |
| 2002 | 29.1°C | 24.7°C | 20.3°C | 38.1°C | 17.0°C | 0 mm | 55% | 5.4 m/s | 7.9 |
| 2001 | 26.4°C | 23.5°C | 20.5°C | 29.1°C | 17.6°C | 1 mm | 62% | 5 m/s | 7.5 |
| 2000 | 28.5°C | 24.9°C | 21.2°C | 34.0°C | 19.2°C | 0 mm | 60% | 5.1 m/s | 7.4 |
| 1999 | 28.1°C | 24.5°C | 20.9°C | 31.5°C | 18.2°C | 1 mm | 60% | 5.2 m/s | 7.6 |
| 1998 | 28.2°C | 24.7°C | 21.2°C | 31.3°C | 17.1°C | 0 mm | 61% | 5.5 m/s | 7.3 |
| 1997 | 28.5°C | 24.8°C | 21.1°C | 31.9°C | 18.2°C | 0 mm | 62% | 4.7 m/s | 7.6 |
| 1996 | 28.5°C | 25.0°C | 21.6°C | 30.8°C | 17.7°C | 1 mm | 62% | 4.8 m/s | 7.4 |
| 1995 | 28.0°C | 24.5°C | 20.9°C | 30.6°C | 18.5°C | 0 mm | 59% | 5.2 m/s | 7.5 |
| 1994 | 29.4°C | 25.5°C | 21.5°C | 35.7°C | 18.2°C | 0 mm | 57% | 4.9 m/s | 7.5 |
| 1993 | 26.2°C | 22.7°C | 19.2°C | 29.7°C | 16.7°C | 0 mm | 61% | 5.7 m/s | 7.5 |
| 1992 | 27.1°C | 23.4°C | 19.7°C | 30.2°C | 15.0°C | 0 mm | 62% | 5.1 m/s | 7.5 |
| 1991 | 28.7°C | 24.7°C | 20.6°C | 32.5°C | 17.6°C | 0 mm | 60% | 5.9 m/s | 7.4 |
| 1990 | 27.7°C | 23.8°C | 20.0°C | 30.8°C | 18.2°C | 0 mm | 57% | 5.6 m/s | 7.6 |
| 1989 | 27.1°C | 23.2°C | 19.4°C | 29.3°C | 17.1°C | 0 mm | 58% | 5.9 m/s | 7.4 |
| 1988 | 29.7°C | 25.8°C | 22.0°C | 33.2°C | 18.6°C | 1 mm | 56% | 5.4 m/s | 7.4 |
| 1987 | 26.4°C | 23.3°C | 20.3°C | 28.3°C | 18.3°C | 0 mm | 67% | 5.5 m/s | 7.4 |
| 1986 | 26.0°C | 22.5°C | 19.0°C | 29.1°C | 16.9°C | 0 mm | 60% | 5.6 m/s | 7.3 |
| 1985 | 25.9°C | 22.7°C | 19.6°C | 29.5°C | 18.3°C | 0 mm | 66% | 5.8 m/s | 7.3 |
| 1984 | 29.0°C | 25.3°C | 21.5°C | 33.9°C | 18.0°C | 4 mm | 60% | 5.5 m/s | 7.2 |
| 1983 | 28.4°C | 24.8°C | 21.2°C | 32.0°C | 18.7°C | 0 mm | 60% | 5.3 m/s | — |
| 1982 | 29.2°C | 25.7°C | 22.3°C | 33.2°C | 18.4°C | 0 mm | 63% | 4.8 m/s | — |
| 1981 | 29.8°C | 25.9°C | 22.0°C | 35.7°C | 18.7°C | 0 mm | 55% | 4.9 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 28.2°C with lows near 21.1°C (mean 24.7°C), based on 45 years of NASA POWER data.
October averages 1 mm of rainfall in Onslow, one of the drier months. The wettest on record was 10 mm in 2008.
The hottest October reached 38.1°C in 2002. The coldest dipped to 15°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 0.4°C. Daytime highs moved from 28.5°C to 28.9°C and overnight lows from 21.3°C to 21.7°C over the same span.
October is one of the cooler months of the year in Onslow and one of the drier months, so plan for around 28.2°C daytime highs and 21.1°C at night.
Not quite — October is the 5th coolest month in Onslow, averaging 24.7°C.
For October in Onslow, pack light layers you can adjust through the day, with typical highs of 28.2°C and lows of 21.1°C.
Relative humidity in October averages 60% — moderately humid.
Average wind speed in October is 5.2 m/s. The windiest October on record averaged 5.9 m/s (1989).
The wettest October on record was 2008 with 10 mm. On average, October sees 1 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 Onslow behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
