August is one of the cooler months of the year in Forster, with average highs near 18.1°C and lows around 11.1°C (mean 14.6°C). It is one of the drier months, averaging 53 mm of rainfall and 71% relative humidity across the period.
August is one of the cooler months of the year in Forster. Across 45 years of records, the warmest August in Forster was 2024 — when the month averaged 16.9°C — while the coldest was 1989 at 12.5°C. Typical August days reach 18.1°C with nights near 11.1°C. The long-term trend is warming, about 0.4°C per decade.
August is one of the drier months in Forster, averaging 53 mm of rainfall. The wettest August on record was 1987 with 179 mm, while the driest was 1991 at 3 mm.
Relative humidity in Forster during August averages 71%. The most humid Augusts were 1987 and 1998 at 80%, and the least humid was 1991 at 61%.
August receives about 3.8 kWh/m²/day of solar energy in Forster. The sunniest August was 1991 at 4.3 kWh/m²/day, and the cloudiest was 1998 at 3.2.
Average wind speed in Forster during August is 2.4 m/s. The windiest August was 1990 at 3.1 m/s, while the calmest was 1982 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.8°C | 14.3°C | 14.7°C | 14.8°C | 15.4°C | +1.6°C |
| Avg High | 17.2°C | 17.9°C | 18.2°C | 18.4°C | 18.8°C | +1.6°C |
| Avg Low | 10.4°C | 10.8°C | 11.3°C | 11.2°C | 12.0°C | +1.6°C |
| Avg Rain | 53 mm | 53 mm | 56 mm | 47 mm | 57 mm | +4 mm |
August temperatures in Forster have risen by about 1.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 5.6°C (1995) to a record high of 27.4°C (1995).
Rainfall in August is one of the drier months, averaging 53 mm, with a wettest year of 179 mm.
A quieter season to visit Forster
If your dates are flexible, the more temperate months of December and November tend to be the most comfortable for visiting Forster. That said, August — with days averaging 18.1°C and nights around 11.1°C (mean 14.6°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 | 17.3°C | 14.9°C | 12.5°C | 23.1°C | 8.3°C | 172 mm | 79% | 2.6 m/s | 3.4 |
| 2024 🔥 | 20.2°C | 16.9°C | 13.6°C | 27.2°C | 10.1°C | 45 mm | 75% | 2 m/s | 3.5 |
| 2023 | 20.0°C | 16.2°C | 12.5°C | 23.9°C | 9.8°C | 34 mm | 70% | 2 m/s | 4 |
| 2022 | 17.7°C | 14.6°C | 11.4°C | 21.4°C | 7.9°C | 43 mm | 77% | 2.3 m/s | 3.4 |
| 2021 | 19.3°C | 15.4°C | 11.4°C | 24.2°C | 8.3°C | 18 mm | 69% | 2.4 m/s | 3.8 |
| 2020 | 18.0°C | 14.4°C | 10.8°C | 23.2°C | 7.1°C | 29 mm | 70% | 2.5 m/s | 4 |
| 2019 | 19.7°C | 15.6°C | 11.4°C | 24.0°C | 7.7°C | 29 mm | 62% | 2.4 m/s | 4 |
| 2018 | 18.7°C | 14.7°C | 10.6°C | 24.3°C | 7.6°C | 17 mm | 62% | 2.5 m/s | 4 |
| 2017 | 18.9°C | 15.2°C | 11.5°C | 25.2°C | 8.9°C | 12 mm | 63% | 2.6 m/s | 3.9 |
| 2016 | 18.5°C | 15.0°C | 11.5°C | 22.8°C | 8.0°C | 74 mm | 70% | 2.3 m/s | 3.5 |
| 2015 | 18.9°C | 14.9°C | 10.9°C | 24.1°C | 5.9°C | 28 mm | 70% | 2.2 m/s | 3.8 |
| 2014 | 17.4°C | 14.7°C | 12.0°C | 22.4°C | 8.2°C | 150 mm | 74% | 2.5 m/s | 3.3 |
| 2013 | 19.5°C | 15.5°C | 11.4°C | 25.6°C | 6.8°C | 5 mm | 66% | 2.4 m/s | 4.2 |
| 2012 | 17.9°C | 14.1°C | 10.3°C | 24.1°C | 8.0°C | 40 mm | 68% | 2.6 m/s | 3.9 |
| 2011 | 17.7°C | 14.6°C | 11.6°C | 21.3°C | 8.8°C | 84 mm | 78% | 2.1 m/s | 3.4 |
| 2010 | 17.2°C | 13.9°C | 10.6°C | 20.8°C | 8.2°C | 36 mm | 70% | 2.9 m/s | 3.9 |
| 2009 | 19.3°C | 15.3°C | 11.3°C | 26.6°C | 8.3°C | 4 mm | 71% | 2 m/s | 4 |
| 2008 | 16.6°C | 13.0°C | 9.4°C | 22.4°C | 6.1°C | 23 mm | 71% | 2.7 m/s | 3.8 |
| 2007 | 18.7°C | 15.4°C | 12.2°C | 22.9°C | 7.9°C | 148 mm | 73% | 2.2 m/s | 3.5 |
| 2006 | 18.2°C | 15.1°C | 12.0°C | 23.1°C | 8.2°C | 111 mm | 72% | 2.5 m/s | 3.6 |
| 2005 | 18.2°C | 14.7°C | 11.1°C | 24.7°C | 7.0°C | 6 mm | 69% | 2.5 m/s | 3.9 |
| 2004 | 19.0°C | 15.2°C | 11.4°C | 25.0°C | 8.3°C | 64 mm | 66% | 2.5 m/s | 3.8 |
| 2003 | 18.0°C | 14.8°C | 11.5°C | 21.4°C | 8.3°C | 37 mm | 71% | 2.3 m/s | 3.6 |
| 2002 | 19.0°C | 15.3°C | 11.7°C | 24.8°C | 8.5°C | 89 mm | 68% | 2.4 m/s | 3.6 |
| 2001 | 17.7°C | 14.2°C | 10.8°C | 21.4°C | 8.5°C | 34 mm | 70% | 2.7 m/s | 3.9 |
| 2000 | 17.7°C | 14.4°C | 11.1°C | 21.3°C | 9.1°C | 43 mm | 70% | 2.5 m/s | 3.6 |
| 1999 | 17.3°C | 14.4°C | 11.6°C | 21.1°C | 7.8°C | 79 mm | 79% | 2.3 m/s | 3.5 |
| 1998 | 17.4°C | 14.9°C | 12.3°C | 21.7°C | 6.9°C | 146 mm | 80% | 2.4 m/s | 3.2 |
| 1997 | 18.0°C | 14.2°C | 10.5°C | 22.8°C | 6.8°C | 21 mm | 68% | 2.3 m/s | 3.8 |
| 1996 | 18.3°C | 14.3°C | 10.4°C | 22.7°C | 6.3°C | 72 mm | 69% | 2.3 m/s | 3.6 |
| 1995 | 20.1°C | 15.9°C | 11.7°C | 27.4°C | 5.6°C | 8 mm | 68% | 2.2 m/s | 4.2 |
| 1994 | 17.6°C | 14.0°C | 10.4°C | 23.0°C | 6.7°C | 41 mm | 68% | 2.3 m/s | 3.9 |
| 1993 | 18.2°C | 14.6°C | 11.0°C | 22.8°C | 7.4°C | 51 mm | 72% | 2.2 m/s | 3.9 |
| 1992 | 17.8°C | 14.0°C | 10.3°C | 23.8°C | 7.0°C | 32 mm | 68% | 2.7 m/s | 3.9 |
| 1991 | 18.5°C | 14.3°C | 10.2°C | 24.9°C | 7.9°C | 3 mm | 61% | 2.6 m/s | 4.3 |
| 1990 | 15.7°C | 12.6°C | 9.5°C | 18.8°C | 7.4°C | 76 mm | 74% | 3.1 m/s | 3.6 |
| 1989 ❄️ | 15.6°C | 12.5°C | 9.4°C | 18.7°C | 6.9°C | 26 mm | 74% | 2.5 m/s | 3.9 |
| 1988 | 17.3°C | 14.1°C | 10.8°C | 22.3°C | 7.0°C | 44 mm | 78% | 2.3 m/s | 3.6 |
| 1987 🌧️ | 17.5°C | 14.6°C | 11.6°C | 21.1°C | 7.8°C | 179 mm | 80% | 2.3 m/s | 3.3 |
| 1986 | 16.6°C | 13.2°C | 9.8°C | 21.2°C | 6.1°C | 96 mm | 73% | 2.4 m/s | 3.7 |
| 1985 | 16.2°C | 12.9°C | 9.6°C | 19.8°C | 6.5°C | 36 mm | 75% | 2.3 m/s | 3.7 |
| 1984 | 17.7°C | 13.9°C | 10.1°C | 20.8°C | 6.6°C | 8 mm | 69% | 2.5 m/s | 4.1 |
| 1983 | 17.0°C | 14.0°C | 10.9°C | 20.3°C | 7.9°C | 39 mm | 74% | 2.2 m/s | — |
| 1982 | 19.6°C | 15.4°C | 11.3°C | 25.6°C | 7.4°C | 34 mm | 68% | 1.9 m/s | — |
| 1981 | 17.7°C | 13.8°C | 9.9°C | 22.3°C | 6.8°C | 13 mm | 62% | 2.7 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 18.1°C with lows near 11.1°C (mean 14.6°C), based on 45 years of NASA POWER data.
August averages 53 mm of rainfall in Forster, one of the drier months. The wettest on record was 179 mm in 1987.
The hottest August reached 27.4°C in 1995. The coldest dipped to 5.6°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.6°C. Daytime highs moved from 17.6°C to 18.9°C and overnight lows from 10.4°C to 12.3°C over the same span.
August is one of the cooler months of the year in Forster and one of the drier months, so plan for around 18.1°C daytime highs and 11.1°C at night.
Not quite — August is the 3rd coolest month in Forster, averaging 14.6°C.
For August in Forster, pack light layers you can adjust through the day, with typical highs of 18.1°C and lows of 11.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 71% — moderately humid.
Average wind speed in August is 2.4 m/s. The windiest August on record averaged 3.1 m/s (1990).
The wettest August on record was 1987 with 179 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 Forster 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.
