August is one of the cooler months of the year in Bicheno, with average highs near 11.6°C and lows around 5.3°C (mean 8.5°C). It is about average for rainfall, averaging 58 mm of rainfall and 84% relative humidity across the period.
August is one of the cooler months of the year in Bicheno. Across 45 years of records, the warmest August in Bicheno was 2024 — when the month averaged 10.3°C — while the coldest was 1990 at 7°C. Typical August days reach 11.6°C with nights near 5.3°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Bicheno, averaging 58 mm of rainfall. The wettest August on record was 1984 with 165 mm, while the driest was 2006 at 11 mm.
Relative humidity in Bicheno during August averages 84%. The most humid August was 1984 at 88%, and the least humid was 1994 at 80%.
August receives about 2.7 kWh/m²/day of solar energy in Bicheno. The sunniest August was 1994 at 3.1 kWh/m²/day, and the cloudiest was 2011 at 2.3.
Average wind speed in Bicheno during August is 2.8 m/s. The windiest August was 2009 at 3.6 m/s, while the calmest was 1986 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.3°C | 8.0°C | 8.6°C | 8.3°C | 9.3°C | +1°C |
| Avg High | 11.4°C | 11.3°C | 11.9°C | 11.5°C | 12.3°C | +0.9°C |
| Avg Low | 5.2°C | 4.8°C | 5.4°C | 5.2°C | 6.2°C | +1°C |
| Avg Rain | 69 mm | 55 mm | 66 mm | 52 mm | 43 mm | -26 mm |
August temperatures in Bicheno have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 0.2°C (1985) to a record high of 17.6°C (2006).
Rainfall in August is about average for rainfall, averaging 58 mm, with a wettest year of 165 mm.
A quieter season to visit Bicheno
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Bicheno. That said, August — with days averaging 11.6°C and nights around 5.3°C (mean 8.5°C) and moderate rainfall (58 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 | 9.4°C | 6.3°C | 15.1°C | 2.7°C | 27 mm | 82% | 2.7 m/s | 2.8 |
| 2024 🔥 | 13.5°C | 10.3°C | 7.2°C | 16.5°C | 3.1°C | 45 mm | 83% | 3 m/s | 2.6 |
| 2023 | 12.9°C | 9.6°C | 6.2°C | 15.7°C | 2.6°C | 17 mm | 80% | 2.5 m/s | 2.7 |
| 2022 | 12.0°C | 9.2°C | 6.3°C | 16.6°C | 2.3°C | 54 mm | 85% | 2.8 m/s | 2.7 |
| 2021 | 11.9°C | 8.9°C | 5.8°C | 14.8°C | 2.1°C | 33 mm | 82% | 3.1 m/s | 2.6 |
| 2020 | 11.1°C | 8.2°C | 5.4°C | 15.6°C | 2.2°C | 84 mm | 86% | 2.8 m/s | 2.6 |
| 2019 | 11.7°C | 8.2°C | 4.7°C | 15.0°C | 2.2°C | 45 mm | 80% | 3.1 m/s | 2.8 |
| 2018 | 11.5°C | 8.3°C | 5.0°C | 15.1°C | 1.7°C | 25 mm | 82% | 3.1 m/s | 2.6 |
| 2017 | 11.2°C | 7.9°C | 4.6°C | 15.1°C | 1.6°C | 34 mm | 82% | 2.8 m/s | 2.9 |
| 2016 | 11.5°C | 8.2°C | 4.9°C | 16.1°C | 2.1°C | 26 mm | 83% | 2.6 m/s | 2.6 |
| 2015 | 10.5°C | 7.2°C | 3.9°C | 14.9°C | 1.0°C | 33 mm | 82% | 3 m/s | 2.8 |
| 2014 | 12.4°C | 9.1°C | 5.7°C | 15.8°C | 2.1°C | 17 mm | 83% | 2.3 m/s | 3 |
| 2013 | 11.7°C | 8.4°C | 5.2°C | 14.9°C | 0.7°C | 73 mm | 83% | 3.2 m/s | 2.6 |
| 2012 | 11.2°C | 8.2°C | 5.1°C | 16.2°C | 2.6°C | 32 mm | 84% | 3 m/s | 2.7 |
| 2011 | 12.3°C | 9.8°C | 7.3°C | 15.9°C | 3.1°C | 134 mm | 87% | 2.8 m/s | 2.3 |
| 2010 | 11.0°C | 8.1°C | 5.3°C | 13.5°C | 2.4°C | 98 mm | 85% | 2.9 m/s | 2.6 |
| 2009 | 12.0°C | 9.1°C | 6.1°C | 14.8°C | 3.8°C | 135 mm | 84% | 3.6 m/s | 2.4 |
| 2008 | 11.3°C | 8.0°C | 4.8°C | 14.1°C | 1.7°C | 32 mm | 82% | 2.5 m/s | 2.8 |
| 2007 | 12.1°C | 8.9°C | 5.6°C | 15.9°C | 2.5°C | 49 mm | 83% | 3 m/s | 2.8 |
| 2006 | 12.8°C | 9.0°C | 5.2°C | 17.6°C | 2.8°C | 11 mm | 81% | 2.5 m/s | 2.9 |
| 2005 | 12.5°C | 9.0°C | 5.6°C | 16.9°C | 1.2°C | 86 mm | 81% | 3.3 m/s | 2.7 |
| 2004 | 11.3°C | 7.9°C | 4.4°C | 17.1°C | 1.7°C | 43 mm | 82% | 2.7 m/s | 2.9 |
| 2003 | 11.5°C | 8.6°C | 5.7°C | 14.3°C | 2.2°C | 89 mm | 83% | 3.2 m/s | 2.6 |
| 2002 | 12.3°C | 8.8°C | 5.3°C | 14.3°C | 2.6°C | 47 mm | 81% | 2.8 m/s | 2.7 |
| 2001 | 11.8°C | 8.7°C | 5.6°C | 14.6°C | 2.0°C | 94 mm | 84% | 2.8 m/s | 2.5 |
| 2000 | 11.1°C | 8.4°C | 5.6°C | 15.0°C | 2.7°C | 74 mm | 84% | 2.6 m/s | 2.7 |
| 1999 | 12.9°C | 9.5°C | 6.2°C | 17.3°C | 3.0°C | 45 mm | 84% | 2.4 m/s | 2.7 |
| 1998 | 11.4°C | 8.3°C | 5.2°C | 14.5°C | 2.3°C | 22 mm | 83% | 2.3 m/s | 2.7 |
| 1997 | 11.5°C | 8.4°C | 5.3°C | 15.6°C | 2.0°C | 56 mm | 81% | 3.2 m/s | 2.7 |
| 1996 | 11.0°C | 7.9°C | 4.8°C | 13.5°C | 0.9°C | 57 mm | 84% | 2.9 m/s | 2.7 |
| 1995 | 11.8°C | 8.3°C | 4.8°C | 16.4°C | 1.3°C | 52 mm | 83% | 3.4 m/s | 2.8 |
| 1994 | 11.0°C | 7.5°C | 4.1°C | 16.6°C | 1.1°C | 30 mm | 80% | 3.3 m/s | 3.1 |
| 1993 | 12.2°C | 8.8°C | 5.5°C | 16.2°C | 1.8°C | 35 mm | 82% | 3.1 m/s | 2.8 |
| 1992 | 10.4°C | 7.2°C | 4.0°C | 13.0°C | 1.4°C | 82 mm | 84% | 2.9 m/s | 2.6 |
| 1991 | 10.5°C | 7.4°C | 4.3°C | 13.2°C | 1.6°C | 96 mm | 83% | 3.3 m/s | 2.6 |
| 1990 ❄️ | 9.9°C | 7.0°C | 4.1°C | 12.9°C | 0.9°C | 78 mm | 86% | 2.7 m/s | 2.7 |
| 1989 | 10.6°C | 7.7°C | 4.8°C | 13.1°C | 1.8°C | 39 mm | 87% | 2.3 m/s | 2.7 |
| 1988 | 11.6°C | 8.5°C | 5.4°C | 14.6°C | 2.9°C | 47 mm | 87% | 2.5 m/s | 2.8 |
| 1987 | 12.0°C | 8.2°C | 4.5°C | 15.7°C | 0.9°C | 30 mm | 84% | 2.3 m/s | 2.8 |
| 1986 | 10.5°C | 7.7°C | 4.8°C | 14.4°C | 2.0°C | 70 mm | 87% | 2.2 m/s | 2.7 |
| 1985 | 11.3°C | 8.1°C | 5.0°C | 14.2°C | 0.2°C | 52 mm | 86% | 2.6 m/s | 2.7 |
| 1984 🌧️ | 10.3°C | 7.7°C | 5.2°C | 13.9°C | 1.5°C | 165 mm | 88% | 3.1 m/s | 2.6 |
| 1983 | 12.3°C | 9.0°C | 5.7°C | 15.9°C | 1.4°C | 49 mm | 85% | 2.7 m/s | — |
| 1982 | 13.3°C | 9.6°C | 5.9°C | 17.4°C | 3.1°C | 12 mm | 82% | 2.5 m/s | — |
| 1981 | 10.4°C | 8.0°C | 5.5°C | 13.6°C | 1.9°C | 159 mm | 88% | 2.6 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 11.6°C with lows near 5.3°C (mean 8.5°C), based on 45 years of NASA POWER data.
August averages 58 mm of rainfall in Bicheno, about average for rainfall. The wettest on record was 165 mm in 1984.
The hottest August reached 17.6°C in 2006. The coldest dipped to 0.2°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1°C. Daytime highs moved from 11.5°C to 12.6°C and overnight lows from 5.5°C to 6.4°C over the same span.
August is one of the cooler months of the year in Bicheno and about average for rainfall, so plan for around 11.6°C daytime highs and 5.3°C at night.
Not quite — August is the 2nd coolest month in Bicheno, averaging 8.5°C.
For August in Bicheno, pack warm layers and a jacket for chilly mornings, with typical highs of 11.6°C and lows of 5.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 84% — quite humid.
Average wind speed in August is 2.8 m/s. The windiest August on record averaged 3.6 m/s (2009).
The wettest August on record was 1984 with 165 mm. On average, August sees 58 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 Bicheno 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.
