August is one of the cooler months of the year in Devonport, with average highs near 12.1°C and lows around 8.8°C (mean 10.5°C). It is a relatively wet time of year, averaging 108 mm of rainfall and 83% relative humidity across the period.
August is one of the cooler months of the year in Devonport. Across 45 years of records, the warmest August in Devonport was 2024 — when the month averaged 12°C — while the coldest was 1990 at 9.2°C. Typical August days reach 12.1°C with nights near 8.8°C. The long-term August temperature trend is broadly flat.
August is a relatively wet time of year in Devonport, averaging 108 mm of rainfall. The wettest August on record was 2013 with 286 mm, while the driest was 1982 at 25 mm.
Relative humidity in Devonport during August averages 83%. The most humid August was 2011 at 87%, and the least humid were 1994 and 2015 at 79%.
August receives about 2.5 kWh/m²/day of solar energy in Devonport. The sunniest August was 1994 at 2.8 kWh/m²/day, and the cloudiest were 2009 and 2011 at 2.1.
Average wind speed in Devonport during August is 4.1 m/s. The windiest August was 2009 at 5.6 m/s, while the calmest was 1999 at 3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.3°C | 10.0°C | 10.7°C | 10.3°C | 11.0°C | +0.7°C |
| Avg High | 12.0°C | 11.7°C | 12.3°C | 12.0°C | 12.6°C | +0.6°C |
| Avg Low | 8.7°C | 8.3°C | 9.1°C | 8.6°C | 9.5°C | +0.8°C |
| Avg Rain | 112 mm | 111 mm | 105 mm | 116 mm | 89 mm | -24 mm |
August temperatures in Devonport have risen by about 0.7°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 4.3°C (1996) to a record high of 15.6°C (1993).
Rainfall in August is a relatively wet time of year, averaging 108 mm, with a wettest year of 286 mm.
A quieter season to visit Devonport
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Devonport. That said, August — with days averaging 12.1°C and nights around 8.8°C (mean 10.5°C) and higher rainfall (108 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 | 12.5°C | 10.9°C | 9.3°C | 14.0°C | 6.6°C | 67 mm | 82% | 3.8 m/s | 2.6 |
| 2024 🔥 | 13.4°C | 12.0°C | 10.6°C | 15.0°C | 7.5°C | 130 mm | 85% | 4.5 m/s | 2.2 |
| 2023 | 12.9°C | 11.2°C | 9.6°C | 14.4°C | 6.5°C | 65 mm | 81% | 3.9 m/s | 2.6 |
| 2022 | 12.5°C | 11.0°C | 9.6°C | 14.6°C | 7.2°C | 124 mm | 83% | 4 m/s | 2.3 |
| 2021 | 12.5°C | 10.9°C | 9.3°C | 13.6°C | 5.8°C | 70 mm | 82% | 4.4 m/s | 2.3 |
| 2020 | 11.9°C | 10.1°C | 8.3°C | 14.3°C | 5.1°C | 75 mm | 83% | 3.9 m/s | 2.6 |
| 2019 | 11.8°C | 9.9°C | 8.1°C | 13.3°C | 5.7°C | 55 mm | 81% | 4.3 m/s | 2.6 |
| 2018 | 11.9°C | 10.1°C | 8.3°C | 13.8°C | 5.3°C | 88 mm | 80% | 4.5 m/s | 2.5 |
| 2017 | 11.8°C | 10.0°C | 8.2°C | 14.2°C | 5.6°C | 88 mm | 80% | 4.1 m/s | 2.6 |
| 2016 | 12.0°C | 10.4°C | 8.8°C | 13.6°C | 6.4°C | 87 mm | 81% | 3.9 m/s | 2.4 |
| 2015 | 11.1°C | 9.3°C | 7.4°C | 13.0°C | 5.3°C | 55 mm | 79% | 3.8 m/s | 2.6 |
| 2014 | 12.5°C | 10.8°C | 9.0°C | 14.9°C | 5.8°C | 27 mm | 83% | 3.2 m/s | 2.7 |
| 2013 🌧️ | 12.2°C | 10.6°C | 9.0°C | 13.6°C | 5.9°C | 286 mm | 84% | 5.3 m/s | 2.2 |
| 2012 | 11.9°C | 10.3°C | 8.7°C | 13.4°C | 5.9°C | 129 mm | 82% | 4.4 m/s | 2.4 |
| 2011 | 12.6°C | 11.2°C | 9.8°C | 14.3°C | 6.7°C | 174 mm | 87% | 3.8 m/s | 2.1 |
| 2010 | 11.8°C | 10.2°C | 8.6°C | 13.8°C | 6.5°C | 173 mm | 82% | 4.5 m/s | 2.3 |
| 2009 | 12.9°C | 11.3°C | 9.7°C | 15.1°C | 7.7°C | 203 mm | 84% | 5.6 m/s | 2.1 |
| 2008 | 11.8°C | 10.1°C | 8.4°C | 13.4°C | 5.2°C | 63 mm | 80% | 3.7 m/s | 2.6 |
| 2007 | 12.3°C | 10.7°C | 9.2°C | 13.7°C | 6.3°C | 129 mm | 83% | 4.5 m/s | 2.5 |
| 2006 | 12.3°C | 10.7°C | 9.1°C | 14.0°C | 7.7°C | 28 mm | 83% | 3.4 m/s | 2.7 |
| 2005 | 12.6°C | 10.8°C | 9.1°C | 14.4°C | 5.4°C | 185 mm | 83% | 4.7 m/s | 2.3 |
| 2004 | 12.0°C | 10.3°C | 8.5°C | 14.4°C | 5.7°C | 72 mm | 82% | 3.8 m/s | 2.5 |
| 2003 | 12.1°C | 10.6°C | 9.0°C | 14.0°C | 6.7°C | 94 mm | 81% | 4.6 m/s | 2.3 |
| 2002 | 12.5°C | 10.8°C | 9.0°C | 13.8°C | 6.5°C | 62 mm | 81% | 3.8 m/s | 2.6 |
| 2001 | 12.6°C | 11.0°C | 9.4°C | 15.0°C | 6.5°C | 150 mm | 82% | 4.6 m/s | 2.2 |
| 2000 | 12.0°C | 10.6°C | 9.2°C | 13.8°C | 7.1°C | 60 mm | 82% | 3.7 m/s | 2.6 |
| 1999 | 12.7°C | 11.0°C | 9.4°C | 14.3°C | 6.2°C | 115 mm | 85% | 3 m/s | 2.4 |
| 1998 | 11.8°C | 10.1°C | 8.4°C | 13.6°C | 5.1°C | 42 mm | 82% | 3.6 m/s | 2.7 |
| 1997 | 11.6°C | 9.9°C | 8.3°C | 13.0°C | 5.5°C | 66 mm | 82% | 4.7 m/s | 2.5 |
| 1996 | 11.3°C | 9.7°C | 8.0°C | 13.1°C | 4.3°C | 182 mm | 84% | 4.4 m/s | 2.4 |
| 1995 | 11.7°C | 10.0°C | 8.2°C | 14.1°C | 5.3°C | 98 mm | 84% | 4.1 m/s | 2.6 |
| 1994 | 11.3°C | 9.5°C | 7.8°C | 14.1°C | 5.1°C | 55 mm | 79% | 4.4 m/s | 2.8 |
| 1993 | 12.6°C | 11.1°C | 9.6°C | 15.6°C | 6.5°C | 90 mm | 82% | 4.6 m/s | 2.4 |
| 1992 | 11.2°C | 9.4°C | 7.6°C | 12.8°C | 5.5°C | 138 mm | 83% | 4.5 m/s | 2.4 |
| 1991 | 11.2°C | 9.6°C | 8.0°C | 13.3°C | 5.8°C | 183 mm | 83% | 5.2 m/s | 2.3 |
| 1990 ❄️ | 11.1°C | 9.2°C | 7.3°C | 12.7°C | 5.1°C | 137 mm | 81% | 3.7 m/s | 2.6 |
| 1989 | 11.7°C | 9.9°C | 8.2°C | 13.2°C | 5.5°C | 82 mm | 81% | 3.3 m/s | 2.6 |
| 1988 | 12.5°C | 10.8°C | 9.2°C | 13.5°C | 6.1°C | 117 mm | 84% | 3.7 m/s | 2.5 |
| 1987 | 11.9°C | 10.1°C | 8.4°C | 14.3°C | 5.4°C | 74 mm | 86% | 3.2 m/s | 2.6 |
| 1986 | 11.3°C | 9.7°C | 8.1°C | 13.2°C | 5.1°C | 123 mm | 84% | 3.3 m/s | 2.6 |
| 1985 | 11.6°C | 10.0°C | 8.4°C | 13.1°C | 4.7°C | 108 mm | 84% | 3.6 m/s | 2.4 |
| 1984 | 11.7°C | 10.1°C | 8.4°C | 13.8°C | 5.7°C | 214 mm | 85% | 4.5 m/s | 2.3 |
| 1983 | 12.5°C | 11.0°C | 9.4°C | 13.8°C | 6.0°C | 97 mm | 85% | 3.7 m/s | — |
| 1982 | 13.1°C | 11.4°C | 9.7°C | 15.0°C | 6.7°C | 25 mm | 85% | 3.6 m/s | — |
| 1981 | 11.5°C | 10.0°C | 8.6°C | 13.4°C | 5.7°C | 172 mm | 85% | 4.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 12.1°C with lows near 8.8°C (mean 10.5°C), based on 45 years of NASA POWER data.
August averages 108 mm of rainfall in Devonport, a relatively wet time of year. The wettest on record was 286 mm in 2013.
The hottest August reached 15.6°C in 1993. The coldest dipped to 4.3°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 0.7°C. Daytime highs moved from 12.1°C to 12.8°C and overnight lows from 8.9°C to 9.7°C over the same span.
August is one of the cooler months of the year in Devonport and a relatively wet time of year, so plan for around 12.1°C daytime highs and 8.8°C at night.
Yes — August is the coldest month of the year in Devonport, averaging 10.5°C.
For August in Devonport, pack light layers you can adjust through the day, with typical highs of 12.1°C and lows of 8.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 83% — quite humid.
Average wind speed in August is 4.1 m/s. The windiest August on record averaged 5.6 m/s (2009).
The wettest August on record was 2013 with 286 mm. On average, August sees 108 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 Devonport 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.
