June is one of the cooler months of the year in Mount Barker, with average highs near 14.8°C and lows around 7.2°C (mean 11°C). It is a relatively wet time of year, averaging 65 mm of rainfall and 79% relative humidity across the period.
June is one of the cooler months of the year in Mount Barker. Across 45 years of records, the warmest June in Mount Barker was 1991 — when the month averaged 12.9°C — while the coldest were 1982 and 2007 at 9.3°C. Typical June days reach 14.8°C with nights near 7.2°C. The long-term June temperature trend is broadly flat.
June is a relatively wet time of year in Mount Barker, averaging 65 mm of rainfall. The wettest June on record was 1981 with 126 mm, while the driest was 2017 at 9 mm.
Relative humidity in Mount Barker during June averages 79%. The most humid June was 2007 at 84%, and the least humid was 2018 at 71%.
June receives about 2.1 kWh/m²/day of solar energy in Mount Barker. The sunniest Junes were 2006 and 2017 at 2.4 kWh/m²/day, and the cloudiest were 1998 and 2001 at 1.9.
Average wind speed in Mount Barker during June is 2.5 m/s. The windiest June was 1981 at 3.4 m/s, while the calmest was 2017 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.4°C | 11.2°C | 11.0°C | 11.0°C | 11.3°C | +0.9°C |
| Avg High | 14.3°C | 14.9°C | 14.7°C | 15.0°C | 15.0°C | +0.7°C |
| Avg Low | 6.6°C | 7.5°C | 7.3°C | 7.1°C | 7.7°C | +1.1°C |
| Avg Rain | 64 mm | 76 mm | 70 mm | 52 mm | 62 mm | -1 mm |
June temperatures in Mount Barker have risen by about 1.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of -0.1°C (1982) to a record high of 24.6°C (2005).
Rainfall in June is a relatively wet time of year, averaging 65 mm, with a wettest year of 126 mm.
A quieter season to visit Mount Barker
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Mount Barker. That said, June — with days averaging 14.8°C and nights around 7.2°C (mean 11°C) and moderate rainfall (65 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 | 15.3°C | 11.4°C | 7.5°C | 20.9°C | 4.0°C | 53 mm | 72% | 2.6 m/s | 2.3 |
| 2024 | 14.9°C | 10.9°C | 7.0°C | 18.2°C | 2.8°C | 50 mm | 79% | 2 m/s | 2 |
| 2023 | 15.7°C | 12.3°C | 8.8°C | 22.5°C | 5.3°C | 77 mm | 78% | 3.2 m/s | 2 |
| 2022 | 14.4°C | 11.3°C | 8.3°C | 17.8°C | 3.1°C | 67 mm | 81% | 2.5 m/s | 2.1 |
| 2021 | 15.5°C | 11.8°C | 8.2°C | 21.3°C | 4.5°C | 79 mm | 78% | 2.6 m/s | 2.1 |
| 2020 | 14.3°C | 10.2°C | 6.2°C | 17.6°C | 1.6°C | 48 mm | 81% | 2.4 m/s | 2.3 |
| 2019 | 15.5°C | 11.0°C | 6.5°C | 21.4°C | 0.3°C | 25 mm | 73% | 2.3 m/s | 2.2 |
| 2018 | 15.0°C | 11.0°C | 7.0°C | 18.7°C | 2.4°C | 21 mm | 71% | 2.4 m/s | 2.3 |
| 2017 | 16.0°C | 11.1°C | 6.3°C | 18.3°C | 2.6°C | 9 mm | 76% | 1.4 m/s | 2.4 |
| 2016 | 14.6°C | 11.1°C | 7.6°C | 19.4°C | 2.0°C | 54 mm | 79% | 2.6 m/s | 2.2 |
| 2015 | 14.9°C | 10.8°C | 6.8°C | 18.6°C | 1.6°C | 17 mm | 79% | 2 m/s | 2.1 |
| 2014 | 15.1°C | 11.6°C | 8.1°C | 18.0°C | 3.4°C | 80 mm | 83% | 2.7 m/s | 2 |
| 2013 | 14.8°C | 11.2°C | 7.7°C | 17.8°C | 4.1°C | 77 mm | 84% | 2.2 m/s | 2.1 |
| 2012 | 13.9°C | 10.2°C | 6.6°C | 19.3°C | 2.4°C | 118 mm | 83% | 2.5 m/s | 2.1 |
| 2011 | 15.1°C | 11.2°C | 7.2°C | 18.8°C | 3.5°C | 50 mm | 80% | 2.5 m/s | 2.2 |
| 2010 | 14.6°C | 10.9°C | 7.1°C | 17.5°C | 2.3°C | 64 mm | 80% | 2.1 m/s | 2.2 |
| 2009 | 14.8°C | 11.1°C | 7.4°C | 17.9°C | 3.1°C | 86 mm | 82% | 2.4 m/s | 2 |
| 2008 | 15.4°C | 11.7°C | 8.0°C | 19.9°C | 3.4°C | 33 mm | 78% | 2.5 m/s | 2 |
| 2007 | 12.8°C | 9.3°C | 5.7°C | 15.6°C | 0.3°C | 49 mm | 84% | 2.2 m/s | 2.2 |
| 2006 | 14.0°C | 9.5°C | 5.0°C | 16.5°C | 1.3°C | 20 mm | 78% | 1.9 m/s | 2.4 |
| 2005 | 15.9°C | 12.1°C | 8.3°C | 24.6°C | 4.4°C | 121 mm | 74% | 2.7 m/s | 2.2 |
| 2004 | 15.0°C | 11.7°C | 8.5°C | 21.6°C | 4.0°C | 94 mm | 78% | 3.3 m/s | 2.1 |
| 2003 | 14.7°C | 11.3°C | 7.9°C | 19.9°C | 2.1°C | 98 mm | 81% | 2.8 m/s | 2.1 |
| 2002 | 15.2°C | 11.5°C | 7.7°C | 19.4°C | 0.8°C | 56 mm | 75% | 2.9 m/s | 2.3 |
| 2001 | 15.2°C | 11.4°C | 7.6°C | 21.3°C | 2.8°C | 72 mm | 82% | 2.2 m/s | 1.9 |
| 2000 | 14.3°C | 10.7°C | 7.1°C | 18.1°C | 2.5°C | 75 mm | 81% | 2.4 m/s | 2.1 |
| 1999 | 15.2°C | 11.0°C | 6.8°C | 19.9°C | 3.5°C | 60 mm | 79% | 2.4 m/s | 2.3 |
| 1998 | 14.7°C | 10.7°C | 6.8°C | 23.4°C | 1.3°C | 84 mm | 77% | 2.5 m/s | 1.9 |
| 1997 | 14.6°C | 10.7°C | 6.8°C | 20.8°C | 3.2°C | 34 mm | 79% | 2.4 m/s | 2 |
| 1996 | 15.4°C | 11.6°C | 7.8°C | 18.9°C | 2.9°C | 99 mm | 79% | 2.7 m/s | 2.1 |
| 1995 | 14.7°C | 11.4°C | 8.0°C | 21.0°C | 3.8°C | 74 mm | 78% | 2.9 m/s | 2 |
| 1994 | 14.8°C | 11.4°C | 8.0°C | 20.9°C | 3.6°C | 94 mm | 79% | 2.5 m/s | 2.1 |
| 1993 | 14.2°C | 10.6°C | 6.9°C | 17.5°C | 1.8°C | 50 mm | 81% | 2.3 m/s | 2.1 |
| 1992 | 14.0°C | 10.8°C | 7.5°C | 16.9°C | 3.5°C | 59 mm | 82% | 2.3 m/s | 2.1 |
| 1991 🔥 | 16.4°C | 12.9°C | 9.5°C | 21.6°C | 6.1°C | 110 mm | 83% | 2.7 m/s | 2 |
| 1990 | 14.8°C | 10.9°C | 7.1°C | 20.8°C | 3.4°C | 91 mm | 79% | 2.7 m/s | 2.2 |
| 1989 | 12.8°C | 9.4°C | 6.0°C | 17.6°C | 0.7°C | 80 mm | 82% | 2.6 m/s | 2 |
| 1988 | 15.2°C | 11.5°C | 7.9°C | 20.5°C | 3.2°C | 81 mm | 80% | 2.6 m/s | 2.1 |
| 1987 | 14.9°C | 11.0°C | 7.1°C | 20.8°C | 4.4°C | 76 mm | 83% | 2.4 m/s | 2 |
| 1986 | 14.4°C | 10.7°C | 7.0°C | 18.9°C | 3.9°C | 33 mm | 80% | 2.1 m/s | 2.2 |
| 1985 | 13.9°C | 10.3°C | 6.7°C | 17.7°C | 2.9°C | 58 mm | 80% | 2.6 m/s | 2.2 |
| 1984 | 14.9°C | 10.6°C | 6.2°C | 20.3°C | 2.0°C | 31 mm | 76% | 2.1 m/s | 2.3 |
| 1983 | 14.5°C | 10.3°C | 6.0°C | 17.9°C | 1.0°C | 35 mm | 80% | 2.1 m/s | — |
| 1982 ❄️ | 13.8°C | 9.3°C | 4.8°C | 16.4°C | -0.1°C | 54 mm | 75% | 2.3 m/s | — |
| 1981 🌧️ | 14.0°C | 10.8°C | 7.5°C | 17.2°C | 3.6°C | 126 mm | 81% | 3.4 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 14.8°C with lows near 7.2°C (mean 11°C), based on 45 years of NASA POWER data.
June averages 65 mm of rainfall in Mount Barker, a relatively wet time of year. The wettest on record was 126 mm in 1981.
The hottest June reached 24.6°C in 2005. The coldest dipped to -0.1°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.2°C. Daytime highs moved from 14.2°C to 15.2°C and overnight lows from 6.2°C to 8°C over the same span.
June is one of the cooler months of the year in Mount Barker and a relatively wet time of year, so plan for around 14.8°C daytime highs and 7.2°C at night.
Not quite — June is the 3rd coolest month in Mount Barker, averaging 11°C.
For June in Mount Barker, pack warm layers and a jacket for chilly mornings, with typical highs of 14.8°C and lows of 7.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 79% — quite humid.
Average wind speed in June is 2.5 m/s. The windiest June on record averaged 3.4 m/s (1981).
The wettest June on record was 1981 with 126 mm. On average, June sees 65 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 Mount Barker 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.
