August is one of the cooler months of the year in Townsville, with average highs near 23.4°C and lows around 19.9°C (mean 21.7°C). It is one of the drier months, averaging 17 mm of rainfall and 72% relative humidity across the period.
August is one of the cooler months of the year in Townsville. Across 45 years of records, the warmest August in Townsville was 2017 — when the month averaged 22.8°C — while the coldest was 1982 at 20.2°C. Typical August days reach 23.4°C with nights near 19.9°C. The long-term trend is warming, about 0.2°C per decade.
August is one of the drier months in Townsville, averaging 17 mm of rainfall. The wettest August on record was 1998 with 144 mm, while the driest were 1990 and 2009 at 1 mm.
Relative humidity in Townsville during August averages 72%. The most humid August was 1995 at 78%, and the least humid was 2004 at 63%.
August receives about 5.2 kWh/m²/day of solar energy in Townsville. The sunniest August was 2013 at 5.8 kWh/m²/day, and the cloudiest was 1995 at 4.2.
Average wind speed in Townsville during August is 4.4 m/s. The windiest August was 1982 at 6.4 m/s, while the calmest was 1981 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.4°C | 21.6°C | 21.6°C | 21.8°C | 22.1°C | +0.7°C |
| Avg High | 23.2°C | 23.3°C | 23.3°C | 23.5°C | 23.9°C | +0.7°C |
| Avg Low | 19.6°C | 19.9°C | 19.9°C | 20.1°C | 20.3°C | +0.7°C |
| Avg Rain | 12 mm | 34 mm | 12 mm | 12 mm | 14 mm | +1 mm |
August temperatures in Townsville have risen by about 0.8°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 13.7°C (2012) to a record high of 27.8°C (2020).
Rainfall in August is one of the drier months, averaging 17 mm, with a wettest year of 144 mm.
One of the best times to visit Townsville
August is one of the best times to visit Townsville. Expect days averaging 23.4°C and nights around 19.9°C (mean 21.7°C) — cooler than Townsville's yearly average — with low rainfall (17 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 | 24.0°C | 22.1°C | 20.1°C | 27.4°C | 14.7°C | 3 mm | 69% | 4.1 m/s | 5.4 |
| 2024 | 23.9°C | 22.4°C | 20.9°C | 26.0°C | 18.6°C | 38 mm | 76% | 4.3 m/s | 5 |
| 2023 | 24.0°C | 22.3°C | 20.6°C | 25.0°C | 19.1°C | 4 mm | 72% | 5 m/s | 5.5 |
| 2022 | 23.2°C | 21.4°C | 19.6°C | 24.6°C | 16.6°C | 7 mm | 75% | 4.5 m/s | 4.9 |
| 2021 | 24.1°C | 22.6°C | 21.0°C | 26.6°C | 17.5°C | 27 mm | 74% | 4.9 m/s | 4.8 |
| 2020 | 24.0°C | 21.9°C | 19.9°C | 27.8°C | 16.8°C | 4 mm | 68% | 4.3 m/s | 5.4 |
| 2019 | 23.3°C | 21.4°C | 19.6°C | 26.8°C | 16.0°C | 3 mm | 70% | 4.5 m/s | 5.4 |
| 2018 | 23.8°C | 22.1°C | 20.4°C | 26.6°C | 18.1°C | 3 mm | 66% | 3.7 m/s | 5.7 |
| 2017 🔥 | 24.3°C | 22.8°C | 21.2°C | 26.7°C | 18.5°C | 4 mm | 69% | 3.7 m/s | 5.5 |
| 2016 | 23.5°C | 21.8°C | 20.2°C | 25.6°C | 15.0°C | 17 mm | 73% | 5 m/s | 4.9 |
| 2015 | 23.6°C | 22.0°C | 20.5°C | 24.9°C | 16.2°C | 4 mm | 70% | 3.7 m/s | 5.5 |
| 2014 | 23.2°C | 21.4°C | 19.6°C | 24.6°C | 16.9°C | 30 mm | 71% | 4.7 m/s | 5.2 |
| 2013 | 23.9°C | 22.3°C | 20.8°C | 27.3°C | 18.6°C | 3 mm | 70% | 3.4 m/s | 5.8 |
| 2012 | 22.4°C | 20.7°C | 19.0°C | 24.7°C | 13.7°C | 7 mm | 74% | 3.5 m/s | 5.3 |
| 2011 | 23.0°C | 21.0°C | 18.9°C | 24.7°C | 15.8°C | 6 mm | 73% | 4.2 m/s | 5.2 |
| 2010 | 23.9°C | 22.1°C | 20.4°C | 25.6°C | 15.7°C | 43 mm | 75% | 4.2 m/s | 4.5 |
| 2009 | 24.2°C | 22.6°C | 21.0°C | 25.6°C | 18.9°C | 1 mm | 74% | 3.9 m/s | 5.7 |
| 2008 | 22.3°C | 20.3°C | 18.4°C | 24.3°C | 14.7°C | 2 mm | 72% | 4.3 m/s | 5.2 |
| 2007 | 23.2°C | 21.5°C | 19.9°C | 25.1°C | 15.9°C | 9 mm | 74% | 4.5 m/s | 4.7 |
| 2006 | 23.0°C | 21.2°C | 19.4°C | 24.5°C | 16.5°C | 4 mm | 69% | 4.3 m/s | 5.7 |
| 2005 | 22.8°C | 21.3°C | 19.8°C | 23.7°C | 15.0°C | 53 mm | 73% | 5.2 m/s | 4.6 |
| 2004 | 23.7°C | 21.8°C | 19.9°C | 25.6°C | 16.7°C | 6 mm | 63% | 3.6 m/s | 5.6 |
| 2003 | 23.7°C | 22.3°C | 21.0°C | 25.3°C | 16.1°C | 8 mm | 73% | 4.2 m/s | 5 |
| 2002 | 23.2°C | 21.6°C | 20.0°C | 25.3°C | 18.2°C | 25 mm | 71% | 4.6 m/s | 4.9 |
| 2001 | 23.9°C | 22.0°C | 20.0°C | 25.3°C | 16.8°C | 2 mm | 64% | 4.1 m/s | 5.6 |
| 2000 | 23.3°C | 21.5°C | 19.7°C | 27.4°C | 16.9°C | 12 mm | 73% | 4.2 m/s | 5.4 |
| 1999 | 22.6°C | 20.9°C | 19.3°C | 25.0°C | 16.7°C | 16 mm | 75% | 5 m/s | 5.1 |
| 1998 🌧️ | 24.3°C | 22.7°C | 21.2°C | 26.9°C | 14.9°C | 144 mm | 77% | 4.4 m/s | 4.7 |
| 1997 | 22.7°C | 21.3°C | 19.8°C | 24.6°C | 18.0°C | 59 mm | 71% | 4.5 m/s | 5.2 |
| 1996 | 24.0°C | 22.3°C | 20.6°C | 26.6°C | 16.2°C | 7 mm | 70% | 4.5 m/s | 5.2 |
| 1995 | 22.3°C | 20.7°C | 19.1°C | 23.9°C | 13.9°C | 89 mm | 78% | 6.2 m/s | 4.2 |
| 1994 | 22.5°C | 20.7°C | 18.8°C | 23.9°C | 15.1°C | 4 mm | 71% | 5.4 m/s | 5.3 |
| 1993 | 23.3°C | 21.8°C | 20.4°C | 24.3°C | 17.5°C | 16 mm | 70% | 4.4 m/s | 5.1 |
| 1992 | 23.7°C | 22.1°C | 20.4°C | 26.4°C | 16.8°C | 7 mm | 73% | 4 m/s | 5.2 |
| 1991 | 24.0°C | 22.3°C | 20.7°C | 27.5°C | 18.1°C | 2 mm | 68% | 4.1 m/s | 5.1 |
| 1990 | 23.2°C | 20.7°C | 18.3°C | 26.6°C | 13.8°C | 1 mm | 64% | 3.7 m/s | 5.7 |
| 1989 | 22.4°C | 20.6°C | 18.7°C | 25.2°C | 14.7°C | 9 mm | 73% | 3.9 m/s | 5.1 |
| 1988 | 23.1°C | 21.4°C | 19.6°C | 24.9°C | 16.2°C | 25 mm | 77% | 5 m/s | 4.6 |
| 1987 | 23.9°C | 21.9°C | 19.9°C | 26.5°C | 17.1°C | 14 mm | 70% | 4 m/s | 5.2 |
| 1986 | 23.4°C | 21.7°C | 19.9°C | 25.0°C | 14.2°C | 22 mm | 70% | 4.1 m/s | 4.7 |
| 1985 | 23.3°C | 21.7°C | 20.0°C | 25.9°C | 16.1°C | 3 mm | 74% | 3.9 m/s | 5.4 |
| 1984 | 23.4°C | 21.6°C | 19.9°C | 25.2°C | 15.2°C | 3 mm | 71% | 3.9 m/s | 5.3 |
| 1983 | 22.8°C | 21.1°C | 19.3°C | 25.1°C | 15.2°C | 7 mm | 75% | 4.9 m/s | — |
| 1982 ❄️ | 21.9°C | 20.2°C | 18.5°C | 22.8°C | 15.9°C | 14 mm | 75% | 6.4 m/s | — |
| 1981 | 24.5°C | 22.4°C | 20.4°C | 27.4°C | 17.4°C | 15 mm | 69% | 3.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 23.4°C with lows near 19.9°C (mean 21.7°C), based on 45 years of NASA POWER data.
August averages 17 mm of rainfall in Townsville, one of the drier months. The wettest on record was 144 mm in 1998.
The hottest August reached 27.8°C in 2020. The coldest dipped to 13.7°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.8°C. Daytime highs moved from 23.2°C to 23.8°C and overnight lows from 19.6°C to 20.4°C over the same span.
August is one of the cooler months of the year in Townsville and one of the drier months, so plan for around 23.4°C daytime highs and 19.9°C at night.
Not quite — August is the 2nd coolest month in Townsville, averaging 21.7°C.
For August in Townsville, pack light layers you can adjust through the day, with typical highs of 23.4°C and lows of 19.9°C.
Relative humidity in August averages 72% — moderately humid.
Average wind speed in August is 4.4 m/s. The windiest August on record averaged 6.4 m/s (1982).
The wettest August on record was 1998 with 144 mm. On average, August sees 17 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 Townsville 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.
