August is one of the cooler months of the year in Cessnock, with average highs near 17.7°C and lows around 6.7°C (mean 12.2°C). It is one of the drier months, averaging 53 mm of rainfall and 72% relative humidity across the period.
August is one of the cooler months of the year in Cessnock. Across 45 years of records, the warmest August in Cessnock was 2024 — when the month averaged 14.8°C — while the coldest was 1989 at 9.7°C. Typical August days reach 17.7°C with nights near 6.7°C. The long-term trend is warming, about 0.4°C per decade.
August is one of the drier months in Cessnock, averaging 53 mm of rainfall. The wettest August on record was 1998 with 204 mm, while the driest was 1995 at 1 mm.
Relative humidity in Cessnock during August averages 72%. The most humid August was 1998 at 87%, and the least humid was 2018 at 58%.
August receives about 3.8 kWh/m²/day of solar energy in Cessnock. The sunniest Augusts were 1995, 2009 and 2013, among others at 4.2 kWh/m²/day, and the cloudiest were 1998, 2014 and 2025, among others at 3.3.
Average wind speed in Cessnock during August is 0.6 m/s. The windiest Augusts were 2010, 2017 and 2019, among others at 0.7 m/s, while the calmest were 2016, 2023 and 2024, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.4°C | 11.8°C | 12.5°C | 12.4°C | 13.1°C | +1.7°C |
| Avg High | 16.7°C | 17.3°C | 18.2°C | 18.1°C | 18.3°C | +1.6°C |
| Avg Low | 6.1°C | 6.3°C | 6.7°C | 6.8°C | 7.9°C | +1.8°C |
| Avg Rain | 63 mm | 65 mm | 37 mm | 41 mm | 60 mm | -3 mm |
August temperatures in Cessnock have risen by about 1.8°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 0.6°C (2015) to a record high of 28.6°C (1995).
Rainfall in August is one of the drier months, averaging 53 mm, with a wettest year of 204 mm.
A quieter season to visit Cessnock
If your dates are flexible, the more temperate months of December and March tend to be the most comfortable for visiting Cessnock. That said, August — with days averaging 17.7°C and nights around 6.7°C (mean 12.2°C) and moderate rainfall (53 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 | 16.2°C | 12.3°C | 8.3°C | 21.5°C | 3.1°C | 156 mm | 85% | 0.6 m/s | 3.3 |
| 2024 🔥 | 19.8°C | 14.8°C | 9.8°C | 27.1°C | 4.3°C | 36 mm | 75% | 0.5 m/s | 3.4 |
| 2023 | 20.7°C | 14.6°C | 8.6°C | 25.2°C | 5.6°C | 34 mm | 69% | 0.5 m/s | 3.9 |
| 2022 | 16.9°C | 12.1°C | 7.4°C | 20.8°C | 4.0°C | 56 mm | 84% | 0.6 m/s | 3.4 |
| 2021 | 19.4°C | 13.2°C | 7.0°C | 24.9°C | 4.0°C | 35 mm | 68% | 0.6 m/s | 3.8 |
| 2020 | 16.8°C | 11.5°C | 6.2°C | 21.8°C | 1.6°C | 45 mm | 75% | 0.6 m/s | 4 |
| 2019 | 19.2°C | 13.0°C | 6.9°C | 24.1°C | 2.5°C | 58 mm | 60% | 0.7 m/s | 4.1 |
| 2018 | 18.8°C | 12.5°C | 6.2°C | 23.2°C | 3.0°C | 17 mm | 58% | 0.6 m/s | 4.1 |
| 2017 | 19.0°C | 12.9°C | 6.9°C | 24.7°C | 4.3°C | 12 mm | 59% | 0.7 m/s | 4.1 |
| 2016 | 17.8°C | 12.4°C | 7.0°C | 21.8°C | 2.9°C | 51 mm | 74% | 0.5 m/s | 3.6 |
| 2015 | 17.9°C | 12.2°C | 6.4°C | 23.9°C | 0.6°C | 31 mm | 73% | 0.6 m/s | 3.8 |
| 2014 | 16.8°C | 12.0°C | 7.2°C | 20.5°C | 3.7°C | 118 mm | 79% | 0.6 m/s | 3.3 |
| 2013 | 19.5°C | 13.2°C | 7.0°C | 26.5°C | 3.3°C | 11 mm | 64% | 0.6 m/s | 4.2 |
| 2012 | 18.2°C | 12.2°C | 6.3°C | 26.0°C | 2.4°C | 17 mm | 64% | 0.6 m/s | 4.1 |
| 2011 | 17.2°C | 12.4°C | 7.7°C | 20.9°C | 3.4°C | 61 mm | 83% | 0.6 m/s | 3.4 |
| 2010 | 16.4°C | 11.3°C | 6.2°C | 20.4°C | 3.3°C | 34 mm | 73% | 0.7 m/s | 4 |
| 2009 | 20.8°C | 14.2°C | 7.5°C | 27.2°C | 2.7°C | 3 mm | 58% | 0.6 m/s | 4.2 |
| 2008 | 16.5°C | 10.6°C | 4.7°C | 21.3°C | 1.3°C | 31 mm | 70% | 0.6 m/s | 3.8 |
| 2007 | 17.1°C | 12.5°C | 7.9°C | 22.2°C | 2.8°C | 97 mm | 81% | 0.6 m/s | 3.5 |
| 2006 | 18.2°C | 12.6°C | 7.0°C | 23.2°C | 2.2°C | 37 mm | 71% | 0.6 m/s | 3.7 |
| 2005 | 18.7°C | 12.4°C | 6.0°C | 24.8°C | 1.6°C | 7 mm | 65% | 0.6 m/s | 4.1 |
| 2004 | 19.0°C | 13.1°C | 7.2°C | 26.3°C | 3.2°C | 49 mm | 65% | 0.6 m/s | 3.8 |
| 2003 | 17.9°C | 12.4°C | 6.9°C | 22.0°C | 2.9°C | 53 mm | 69% | 0.6 m/s | 3.7 |
| 2002 | 19.3°C | 13.2°C | 7.1°C | 24.8°C | 3.9°C | 24 mm | 65% | 0.6 m/s | 3.6 |
| 2001 | 17.3°C | 11.7°C | 6.2°C | 21.9°C | 3.1°C | 34 mm | 70% | 0.7 m/s | 3.7 |
| 2000 | 17.4°C | 12.0°C | 6.6°C | 20.4°C | 3.5°C | 39 mm | 72% | 0.6 m/s | 3.6 |
| 1999 | 16.8°C | 12.0°C | 7.1°C | 21.9°C | 2.6°C | 55 mm | 82% | 0.6 m/s | 3.7 |
| 1998 🌧️ | 16.4°C | 12.5°C | 8.5°C | 20.7°C | 1.3°C | 204 mm | 87% | 0.6 m/s | 3.3 |
| 1997 | 17.5°C | 11.5°C | 5.5°C | 23.1°C | 1.0°C | 21 mm | 69% | 0.6 m/s | 4 |
| 1996 | 17.6°C | 11.7°C | 5.8°C | 22.6°C | 1.1°C | 106 mm | 69% | 0.7 m/s | 3.7 |
| 1995 | 20.9°C | 13.9°C | 7.0°C | 28.6°C | 1.4°C | 1 mm | 65% | 0.6 m/s | 4.2 |
| 1994 | 17.4°C | 11.4°C | 5.4°C | 24.7°C | 1.5°C | 17 mm | 66% | 0.6 m/s | 4.1 |
| 1993 | 17.7°C | 12.1°C | 6.6°C | 22.7°C | 3.5°C | 47 mm | 76% | 0.5 m/s | 3.8 |
| 1992 | 17.4°C | 11.6°C | 5.8°C | 24.1°C | 1.9°C | 35 mm | 68% | 0.7 m/s | 3.7 |
| 1991 | 16.7°C | 11.2°C | 5.6°C | 20.1°C | 2.0°C | 17 mm | 67% | 0.7 m/s | 4.2 |
| 1990 | 14.8°C | 10.1°C | 5.5°C | 19.4°C | 2.5°C | 146 mm | 80% | 0.7 m/s | 3.5 |
| 1989 ❄️ | 14.7°C | 9.7°C | 4.8°C | 18.4°C | 1.3°C | 18 mm | 79% | 0.6 m/s | 4 |
| 1988 | 16.7°C | 11.6°C | 6.5°C | 22.8°C | 1.9°C | 50 mm | 80% | 0.6 m/s | 3.6 |
| 1987 | 17.0°C | 12.6°C | 8.2°C | 21.3°C | 3.1°C | 190 mm | 84% | 0.5 m/s | 3.3 |
| 1986 | 15.7°C | 10.6°C | 5.4°C | 20.0°C | 2.5°C | 199 mm | 79% | 0.6 m/s | 3.8 |
| 1985 | 15.8°C | 10.7°C | 5.5°C | 21.6°C | 1.0°C | 44 mm | 77% | 0.6 m/s | 3.7 |
| 1984 | 16.6°C | 11.2°C | 5.9°C | 20.0°C | 2.1°C | 21 mm | 73% | 0.6 m/s | 4 |
| 1983 | 16.3°C | 11.2°C | 6.2°C | 19.8°C | 2.9°C | 34 mm | 80% | 0.5 m/s | — |
| 1982 | 20.8°C | 13.9°C | 7.0°C | 27.4°C | 2.0°C | 7 mm | 63% | 0.6 m/s | — |
| 1981 | 16.7°C | 10.9°C | 5.1°C | 19.9°C | 1.6°C | 8 mm | 67% | 0.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 17.7°C with lows near 6.7°C (mean 12.2°C), based on 45 years of NASA POWER data.
August averages 53 mm of rainfall in Cessnock, one of the drier months. The wettest on record was 204 mm in 1998.
The hottest August reached 28.6°C in 1995. The coldest dipped to 0.6°C in 2015.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.8°C. Daytime highs moved from 17.2°C to 18.6°C and overnight lows from 5.9°C to 8.2°C over the same span.
August is one of the cooler months of the year in Cessnock and one of the drier months, so plan for around 17.7°C daytime highs and 6.7°C at night.
Not quite — August is the 3rd coolest month in Cessnock, averaging 12.2°C.
For August in Cessnock, pack warm layers and a jacket for chilly mornings, with typical highs of 17.7°C and lows of 6.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 72% — moderately humid.
Average wind speed in August is 0.6 m/s. The windiest August on record averaged 0.7 m/s (1981).
The wettest August on record was 1998 with 204 mm. On average, August sees 53 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 Cessnock behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
