June is one of the cooler months of the year in Bunbury, with average highs near 17.2°C and lows around 10.5°C (mean 13.9°C). It is a relatively wet time of year, averaging 133 mm of rainfall and 79% relative humidity across the period.
June is one of the cooler months of the year in Bunbury. Across 45 years of records, the warmest June in Bunbury was 2020 — when the month averaged 15.4°C — while the coldest was 1981 at 11.8°C. Typical June days reach 17.2°C with nights near 10.5°C. The long-term trend is warming, about 0.2°C per decade.
June is a relatively wet time of year in Bunbury, averaging 133 mm of rainfall. The wettest June on record was 2009 with 232 mm, while the driest was 2006 at 44 mm.
Relative humidity in Bunbury during June averages 79%. The most humid June was 2005 at 85%, and the least humid was 2006 at 72%.
June receives about 2.3 kWh/m²/day of solar energy in Bunbury. The sunniest June was 2007 at 2.6 kWh/m²/day, and the cloudiest were 2009, 2012 and 2025, among others at 2.1.
Average wind speed in Bunbury during June is 3.5 m/s. The windiest Junes were 1981 and 1992 at 4.2 m/s, while the calmest was 2010 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.6°C | 13.7°C | 13.9°C | 14.1°C | 14.3°C | +0.7°C |
| Avg High | 17.0°C | 16.8°C | 17.3°C | 17.7°C | 17.6°C | +0.6°C |
| Avg Low | 10.2°C | 10.5°C | 10.4°C | 10.5°C | 11.0°C | +0.8°C |
| Avg Rain | 153 mm | 157 mm | 137 mm | 105 mm | 106 mm | -47 mm |
June temperatures in Bunbury have risen by about 0.5°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 3.3°C (1981) to a record high of 24.1°C (2019).
Rainfall in June is a relatively wet time of year, averaging 133 mm, with a wettest year of 232 mm.
A quieter season to visit Bunbury
If your dates are flexible, the more temperate months of March and December tend to be the most comfortable for visiting Bunbury. That said, June — with days averaging 17.2°C and nights around 10.5°C (mean 13.9°C) and higher rainfall (133 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 | 18.6°C | 15.2°C | 11.8°C | 21.7°C | 8.4°C | 141 mm | 78% | 3.3 m/s | 2.1 |
| 2024 | 18.3°C | 14.9°C | 11.5°C | 23.0°C | 6.0°C | 93 mm | 77% | 3.3 m/s | 2.4 |
| 2023 | 15.5°C | 12.3°C | 9.2°C | 18.8°C | 5.3°C | 107 mm | 81% | 3.2 m/s | 2.2 |
| 2022 | 17.5°C | 14.3°C | 11.1°C | 20.5°C | 6.9°C | 112 mm | 81% | 3.5 m/s | 2.2 |
| 2021 | 16.8°C | 13.6°C | 10.4°C | 19.9°C | 7.1°C | 99 mm | 82% | 3.3 m/s | 2.4 |
| 2020 🔥 | 18.6°C | 15.4°C | 12.2°C | 22.1°C | 5.8°C | 82 mm | 76% | 3.6 m/s | 2.3 |
| 2019 | 17.6°C | 14.2°C | 10.8°C | 24.1°C | 6.8°C | 165 mm | 73% | 3.8 m/s | 2.2 |
| 2018 | 17.8°C | 14.2°C | 10.6°C | 20.8°C | 7.1°C | 96 mm | 76% | 3 m/s | 2.3 |
| 2017 | 19.6°C | 15.2°C | 10.9°C | 22.2°C | 7.3°C | 51 mm | 74% | 3.2 m/s | 2.5 |
| 2016 | 16.7°C | 13.3°C | 10.0°C | 20.4°C | 5.6°C | 89 mm | 81% | 3.2 m/s | 2.2 |
| 2015 | 17.9°C | 14.3°C | 10.6°C | 21.0°C | 6.0°C | 85 mm | 82% | 3.4 m/s | 2.3 |
| 2014 | 17.1°C | 13.7°C | 10.3°C | 20.9°C | 6.7°C | 113 mm | 81% | 3.2 m/s | 2.2 |
| 2013 | 17.2°C | 13.6°C | 10.1°C | 19.1°C | 5.8°C | 72 mm | 83% | 2.8 m/s | 2.3 |
| 2012 | 17.3°C | 14.1°C | 10.8°C | 22.6°C | 5.5°C | 161 mm | 78% | 3.6 m/s | 2.1 |
| 2011 | 17.9°C | 14.6°C | 11.3°C | 19.4°C | 7.1°C | 161 mm | 76% | 3.7 m/s | 2.2 |
| 2010 | 17.6°C | 13.6°C | 9.5°C | 21.0°C | 4.7°C | 56 mm | 78% | 2.6 m/s | 2.4 |
| 2009 🌧️ | 16.9°C | 13.9°C | 11.0°C | 22.6°C | 7.9°C | 232 mm | 81% | 4 m/s | 2.1 |
| 2008 | 17.3°C | 13.5°C | 9.7°C | 20.4°C | 6.9°C | 117 mm | 81% | 3.3 m/s | 2.4 |
| 2007 | 17.9°C | 14.0°C | 10.0°C | 21.6°C | 6.4°C | 117 mm | 77% | 3.9 m/s | 2.6 |
| 2006 | 18.1°C | 13.4°C | 8.6°C | 21.4°C | 4.7°C | 44 mm | 72% | 3.1 m/s | 2.5 |
| 2005 | 15.8°C | 13.1°C | 10.4°C | 20.9°C | 6.9°C | 191 mm | 85% | 3.8 m/s | 2.1 |
| 2004 | 17.4°C | 14.4°C | 11.3°C | 20.0°C | 4.7°C | 182 mm | 80% | 3.9 m/s | 2.1 |
| 2003 | 17.1°C | 13.8°C | 10.5°C | 20.7°C | 6.5°C | 142 mm | 76% | 3.6 m/s | 2.3 |
| 2002 | 16.8°C | 13.8°C | 10.8°C | 20.6°C | 6.7°C | 152 mm | 79% | 3.7 m/s | 2.1 |
| 2001 | 18.0°C | 14.5°C | 11.1°C | 21.3°C | 6.0°C | 57 mm | 80% | 2.7 m/s | 2.5 |
| 2000 | 18.1°C | 14.4°C | 10.7°C | 21.3°C | 7.4°C | 139 mm | 76% | 3.6 m/s | 2.3 |
| 1999 | 17.0°C | 14.1°C | 11.1°C | 20.1°C | 5.7°C | 200 mm | 82% | 3.6 m/s | 2.1 |
| 1998 | 16.7°C | 13.4°C | 10.1°C | 22.0°C | 5.3°C | 168 mm | 79% | 4.1 m/s | 2.1 |
| 1997 | 17.6°C | 14.6°C | 11.5°C | 20.4°C | 7.7°C | 163 mm | 82% | 3.5 m/s | 2.2 |
| 1996 | 17.5°C | 14.6°C | 11.6°C | 20.9°C | 6.3°C | 215 mm | 77% | 3.7 m/s | 2.2 |
| 1995 | 16.2°C | 13.2°C | 10.1°C | 20.8°C | 7.0°C | 127 mm | 81% | 3.6 m/s | 2.2 |
| 1994 | 16.6°C | 13.6°C | 10.6°C | 19.9°C | 7.3°C | 158 mm | 82% | 3.3 m/s | 2.2 |
| 1993 | 16.4°C | 12.9°C | 9.4°C | 19.2°C | 6.6°C | 87 mm | 80% | 3.6 m/s | 2.4 |
| 1992 | 16.5°C | 13.6°C | 10.7°C | 19.7°C | 5.5°C | 198 mm | 81% | 4.2 m/s | 2.2 |
| 1991 | 16.9°C | 14.5°C | 12.1°C | 19.8°C | 9.2°C | 163 mm | 82% | 3.7 m/s | 2.1 |
| 1990 | 16.1°C | 12.1°C | 8.0°C | 21.1°C | 4.3°C | 95 mm | 77% | 3.3 m/s | 2.4 |
| 1989 | 17.1°C | 13.2°C | 9.3°C | 20.8°C | 5.3°C | 82 mm | 81% | 3.1 m/s | 2.5 |
| 1988 | 16.6°C | 13.8°C | 11.0°C | 20.4°C | 5.0°C | 215 mm | 84% | 3.9 m/s | 2.1 |
| 1987 | 17.4°C | 14.2°C | 11.1°C | 21.3°C | 5.2°C | 145 mm | 79% | 3.8 m/s | 2.2 |
| 1986 | 17.3°C | 13.2°C | 9.1°C | 22.2°C | 6.1°C | 109 mm | 80% | 3.6 m/s | 2.3 |
| 1985 | 18.1°C | 15.1°C | 12.0°C | 21.9°C | 6.0°C | 133 mm | 82% | 3.7 m/s | 2.3 |
| 1984 | 17.1°C | 13.2°C | 9.3°C | 22.1°C | 3.9°C | 110 mm | 81% | 3 m/s | 2.4 |
| 1983 | 18.4°C | 15.2°C | 11.9°C | 21.1°C | 7.2°C | 217 mm | 80% | 3.8 m/s | — |
| 1982 | 16.4°C | 12.9°C | 9.4°C | 21.7°C | 4.7°C | 187 mm | 77% | 3.7 m/s | — |
| 1981 ❄️ | 14.9°C | 11.8°C | 8.6°C | 17.9°C | 3.3°C | 179 mm | 81% | 4.2 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 17.2°C with lows near 10.5°C (mean 13.9°C), based on 45 years of NASA POWER data.
June averages 133 mm of rainfall in Bunbury, a relatively wet time of year. The wettest on record was 232 mm in 2009.
The hottest June reached 24.1°C in 2019. The coldest dipped to 3.3°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 0.5°C. Daytime highs moved from 17°C to 17.3°C and overnight lows from 10.2°C to 10.8°C over the same span.
June is one of the cooler months of the year in Bunbury and a relatively wet time of year, so plan for around 17.2°C daytime highs and 10.5°C at night.
Not quite — June is the 4th coolest month in Bunbury, averaging 13.9°C.
For June in Bunbury, pack light layers you can adjust through the day, with typical highs of 17.2°C and lows of 10.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 79% — quite humid.
Average wind speed in June is 3.5 m/s. The windiest June on record averaged 4.2 m/s (1981).
The wettest June on record was 2009 with 232 mm. On average, June sees 133 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 Bunbury behaves each June, 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 June specifically, along with year-by-year records and how the month has changed over the decades.
