July is one of the cooler months of the year in Busselton, with average highs near 15.9°C and lows around 9.5°C (mean 12.7°C). It is a relatively wet time of year, averaging 143 mm of rainfall and 82% relative humidity across the period.
July is one of the cooler months of the year in Busselton. Across 45 years of records, the warmest July in Busselton was 2024 — when the month averaged 13.9°C — while the coldest was 1986 at 11.5°C. Typical July days reach 15.9°C with nights near 9.5°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Busselton, averaging 143 mm of rainfall. The wettest July on record was 2000 with 247 mm, while the driest was 2012 at 60 mm.
Relative humidity in Busselton during July averages 82%. The most humid Julys were 1991 and 2014 at 85%, and the least humid was 2001 at 78%.
July receives about 2.4 kWh/m²/day of solar energy in Busselton. The sunniest July was 2020 at 2.7 kWh/m²/day, and the cloudiest was 2007 at 2.1.
Average wind speed in Busselton during July is 3.6 m/s. The windiest July was 1996 at 5 m/s, while the calmest were 2012 and 2019 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.3°C | 12.7°C | 12.7°C | 12.8°C | 13.2°C | +0.9°C |
| Avg High | 15.5°C | 15.8°C | 15.9°C | 16.2°C | 16.4°C | +0.9°C |
| Avg Low | 9.1°C | 9.6°C | 9.5°C | 9.5°C | 10.0°C | +0.9°C |
| Avg Rain | 135 mm | 170 mm | 151 mm | 124 mm | 129 mm | -6 mm |
July temperatures in Busselton have risen by about 0.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 3.2°C (1987) to a record high of 21.7°C (2006).
Rainfall in July is a relatively wet time of year, averaging 143 mm, with a wettest year of 247 mm.
A quieter season to visit Busselton
If your dates are flexible, the more temperate months of March and December tend to be the most comfortable for visiting Busselton. That said, July — with days averaging 15.9°C and nights around 9.5°C (mean 12.7°C) and higher rainfall (143 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 | 15.6°C | 12.5°C | 9.4°C | 19.7°C | 5.8°C | 165 mm | 81% | 3.5 m/s | 2.4 |
| 2024 🔥 | 17.2°C | 13.9°C | 10.6°C | 20.4°C | 6.5°C | 153 mm | 78% | 4 m/s | 2.5 |
| 2023 | 16.1°C | 13.1°C | 10.1°C | 18.1°C | 4.6°C | 100 mm | 82% | 3.8 m/s | 2.5 |
| 2022 | 16.8°C | 13.0°C | 9.2°C | 19.5°C | 5.3°C | 106 mm | 81% | 3.5 m/s | 2.5 |
| 2021 | 15.8°C | 13.4°C | 11.1°C | 18.2°C | 8.3°C | 147 mm | 81% | 4.5 m/s | 2.3 |
| 2020 | 16.8°C | 13.3°C | 9.8°C | 20.1°C | 4.7°C | 106 mm | 81% | 3.4 m/s | 2.7 |
| 2019 | 16.7°C | 13.1°C | 9.4°C | 20.0°C | 5.9°C | 81 mm | 83% | 2.8 m/s | 2.5 |
| 2018 | 16.7°C | 13.6°C | 10.4°C | 19.7°C | 6.4°C | 131 mm | 79% | 3.9 m/s | 2.5 |
| 2017 | 15.9°C | 13.1°C | 10.4°C | 19.6°C | 6.7°C | 164 mm | 79% | 4 m/s | 2.3 |
| 2016 | 15.7°C | 12.2°C | 8.7°C | 18.9°C | 4.2°C | 84 mm | 80% | 3.7 m/s | 2.5 |
| 2015 | 16.7°C | 13.2°C | 9.6°C | 19.4°C | 4.9°C | 103 mm | 84% | 2.9 m/s | 2.5 |
| 2014 | 15.9°C | 12.9°C | 9.9°C | 19.9°C | 5.8°C | 189 mm | 85% | 3.6 m/s | 2.3 |
| 2013 | 16.1°C | 12.8°C | 9.5°C | 19.6°C | 4.3°C | 162 mm | 82% | 3.4 m/s | 2.3 |
| 2012 | 16.1°C | 12.3°C | 8.5°C | 19.6°C | 4.2°C | 60 mm | 81% | 2.8 m/s | 2.6 |
| 2011 | 15.9°C | 12.6°C | 9.3°C | 18.6°C | 5.4°C | 140 mm | 83% | 3.5 m/s | 2.4 |
| 2010 | 15.9°C | 12.4°C | 8.9°C | 18.5°C | 5.7°C | 129 mm | 81% | 3 m/s | 2.5 |
| 2009 | 15.3°C | 12.1°C | 8.8°C | 18.0°C | 6.0°C | 155 mm | 83% | 3.3 m/s | 2.6 |
| 2008 | 15.6°C | 12.4°C | 9.2°C | 18.4°C | 6.0°C | 200 mm | 82% | 3.7 m/s | 2.4 |
| 2007 | 16.6°C | 13.6°C | 10.6°C | 19.6°C | 6.2°C | 215 mm | 81% | 4.4 m/s | 2.1 |
| 2006 | 16.7°C | 12.7°C | 8.7°C | 21.7°C | 4.7°C | 136 mm | 79% | 3.3 m/s | 2.6 |
| 2005 | 15.7°C | 12.5°C | 9.3°C | 19.4°C | 3.7°C | 70 mm | 83% | 3.2 m/s | 2.6 |
| 2004 | 15.5°C | 12.1°C | 8.6°C | 17.3°C | 5.2°C | 118 mm | 83% | 3 m/s | 2.4 |
| 2003 | 15.6°C | 12.9°C | 10.1°C | 18.3°C | 5.6°C | 145 mm | 82% | 3.7 m/s | 2.3 |
| 2002 | 15.9°C | 13.2°C | 10.6°C | 19.2°C | 3.7°C | 134 mm | 78% | 4 m/s | 2.4 |
| 2001 | 16.7°C | 12.8°C | 8.9°C | 21.1°C | 5.4°C | 90 mm | 78% | 3 m/s | 2.6 |
| 2000 🌧️ | 15.3°C | 12.7°C | 10.1°C | 17.9°C | 4.1°C | 247 mm | 83% | 4.3 m/s | 2.4 |
| 1999 | 16.7°C | 13.4°C | 10.1°C | 20.4°C | 6.0°C | 155 mm | 83% | 3.7 m/s | 2.4 |
| 1998 | 15.7°C | 11.9°C | 8.0°C | 18.5°C | 5.6°C | 134 mm | 83% | 3.2 m/s | 2.3 |
| 1997 | 15.7°C | 11.8°C | 7.8°C | 19.2°C | 3.3°C | 125 mm | 82% | 3.3 m/s | 2.5 |
| 1996 | 15.9°C | 13.4°C | 10.8°C | 19.0°C | 4.5°C | 245 mm | 81% | 5 m/s | 2.2 |
| 1995 | 15.6°C | 13.1°C | 10.6°C | 19.5°C | 6.8°C | 235 mm | 84% | 3.8 m/s | 2.2 |
| 1994 | 16.0°C | 13.2°C | 10.4°C | 20.4°C | 6.4°C | 122 mm | 82% | 3.2 m/s | 2.5 |
| 1993 | 15.2°C | 12.3°C | 9.5°C | 18.8°C | 4.2°C | 179 mm | 83% | 4 m/s | 2.4 |
| 1992 | 16.2°C | 13.5°C | 10.9°C | 19.0°C | 6.6°C | 113 mm | 84% | 3.2 m/s | 2.4 |
| 1991 | 15.7°C | 12.8°C | 9.9°C | 19.2°C | 5.3°C | 187 mm | 85% | 3.7 m/s | 2.4 |
| 1990 | 14.8°C | 11.7°C | 8.5°C | 17.1°C | 3.3°C | 202 mm | 82% | 4 m/s | 2.5 |
| 1989 | 15.5°C | 12.2°C | 8.8°C | 17.8°C | 4.6°C | 144 mm | 82% | 3 m/s | 2.5 |
| 1988 | 15.5°C | 12.1°C | 8.7°C | 18.2°C | 3.3°C | 145 mm | 83% | 3.5 m/s | 2.4 |
| 1987 | 15.9°C | 12.6°C | 9.4°C | 20.4°C | 3.2°C | 130 mm | 82% | 3.3 m/s | 2.4 |
| 1986 ❄️ | 14.5°C | 11.5°C | 8.4°C | 16.7°C | 4.2°C | 158 mm | 83% | 3.4 m/s | 2.4 |
| 1985 | 16.5°C | 13.1°C | 9.8°C | 19.0°C | 4.9°C | 83 mm | 80% | 3.3 m/s | 2.5 |
| 1984 | 15.2°C | 11.9°C | 8.6°C | 18.1°C | 4.9°C | 105 mm | 84% | 3.8 m/s | 2.2 |
| 1983 | 15.9°C | 12.7°C | 9.6°C | 18.7°C | 4.3°C | 147 mm | 84% | 3.2 m/s | — |
| 1982 | 15.4°C | 12.3°C | 9.2°C | 18.7°C | 4.5°C | 144 mm | 80% | 3.5 m/s | — |
| 1981 | 15.3°C | 12.4°C | 9.5°C | 18.1°C | 4.7°C | 161 mm | 84% | 3.6 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 15.9°C with lows near 9.5°C (mean 12.7°C), based on 45 years of NASA POWER data.
July averages 143 mm of rainfall in Busselton, a relatively wet time of year. The wettest on record was 247 mm in 2000.
The hottest July reached 21.7°C in 2006. The coldest dipped to 3.2°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.7°C. Daytime highs moved from 15.7°C to 16.3°C and overnight lows from 9.3°C to 10.1°C over the same span.
July is one of the cooler months of the year in Busselton and a relatively wet time of year, so plan for around 15.9°C daytime highs and 9.5°C at night.
Not quite — July is the 2nd coolest month in Busselton, averaging 12.7°C.
For July in Busselton, pack light layers you can adjust through the day, with typical highs of 15.9°C and lows of 9.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 82% — quite humid.
Average wind speed in July is 3.6 m/s. The windiest July on record averaged 5 m/s (1996).
The wettest July on record was 2000 with 247 mm. On average, July sees 143 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 Busselton behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
