June is one of the warmer months of the year in Sydney Mines, with average highs near 15.7°C and lows around 8.9°C (mean 12.3°C). It is about average for rainfall, averaging 86 mm of rainfall and 84% relative humidity across the period.
June is one of the warmer months of the year in Sydney Mines. Across 45 years of records, the warmest June in Sydney Mines was 1999 — when the month averaged 15.2°C — while the coldest was 2018 at 10.1°C. Typical June days reach 15.7°C with nights near 8.9°C. The long-term June temperature trend is broadly flat.
June is about average for rainfall in Sydney Mines, averaging 86 mm of rainfall. The wettest June on record was 2010 with 162 mm, while the driest was 1991 at 26 mm.
Relative humidity in Sydney Mines during June averages 84%. The most humid June was 2006 at 90%, and the least humid was 1995 at 73%.
June receives about 5.6 kWh/m²/day of solar energy in Sydney Mines. The sunniest June was 1999 at 6.5 kWh/m²/day, and the cloudiest was 2011 at 4.4.
Average wind speed in Sydney Mines during June is 5.2 m/s. The windiest Junes were 1984, 1985 and 2006 at 6 m/s, while the calmest was 1983 at 4.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.9°C | 12.6°C | 12.4°C | 11.8°C | 13.1°C | +1.2°C |
| Avg High | 15.2°C | 16.5°C | 15.8°C | 15.0°C | 16.5°C | +1.3°C |
| Avg Low | 8.5°C | 8.8°C | 9.0°C | 8.7°C | 9.7°C | +1.2°C |
| Avg Rain | 81 mm | 52 mm | 90 mm | 122 mm | 84 mm | +3 mm |
June temperatures in Sydney Mines have risen by about 1.3°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 1.7°C (2018) to a record high of 27.4°C (2020).
Rainfall in June is about average for rainfall, averaging 86 mm, with a wettest year of 162 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Sydney Mines
June is one of the best times to visit Sydney Mines. Expect days averaging 15.7°C and nights around 8.9°C (mean 12.3°C) — warmer than Sydney Mines's yearly average — with higher rainfall (86 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 17.3°C | 13.4°C | 9.4°C | 23.9°C | 6.9°C | 50 mm | 81% | 5.1 m/s | 6.1 |
| 2024 | 16.7°C | 13.6°C | 10.5°C | 25.6°C | 5.8°C | 106 mm | 86% | 5.2 m/s | 5.2 |
| 2023 | 15.4°C | 12.3°C | 9.2°C | 24.1°C | 6.3°C | 71 mm | 87% | 4.9 m/s | 5 |
| 2022 | 16.0°C | 12.8°C | 9.6°C | 22.7°C | 4.8°C | 131 mm | 86% | 5.2 m/s | 5.7 |
| 2021 | 17.2°C | 13.7°C | 10.1°C | 25.1°C | 6.2°C | 59 mm | 85% | 5.2 m/s | 6.1 |
| 2020 | 16.2°C | 13.0°C | 9.7°C | 27.4°C | 4.7°C | 84 mm | 88% | 5.1 m/s | 5.6 |
| 2019 | 14.9°C | 11.8°C | 8.6°C | 20.8°C | 4.7°C | 144 mm | 85% | 4.5 m/s | 5.5 |
| 2018 ❄️ | 13.6°C | 10.1°C | 6.6°C | 22.4°C | 1.7°C | 147 mm | 82% | 5.7 m/s | 5.4 |
| 2017 | 16.2°C | 12.7°C | 9.2°C | 21.8°C | 5.0°C | 60 mm | 85% | 5.3 m/s | 5.7 |
| 2016 | 14.7°C | 11.8°C | 8.9°C | 21.4°C | 3.6°C | 70 mm | 85% | 5.8 m/s | 5.3 |
| 2015 | 13.7°C | 10.7°C | 7.7°C | 19.3°C | 2.1°C | 146 mm | 85% | 5.7 m/s | 5.2 |
| 2014 | 15.7°C | 12.3°C | 9.0°C | 25.5°C | 4.3°C | 114 mm | 85% | 4.6 m/s | 5.7 |
| 2013 | 16.5°C | 13.4°C | 10.2°C | 24.8°C | 7.7°C | 140 mm | 86% | 4.9 m/s | 5.3 |
| 2012 | 15.2°C | 12.4°C | 9.6°C | 20.5°C | 7.1°C | 82 mm | 87% | 5 m/s | 5.7 |
| 2011 | 13.6°C | 11.0°C | 8.3°C | 20.4°C | 6.0°C | 149 mm | 89% | 5.7 m/s | 4.4 |
| 2010 🌧️ | 15.7°C | 12.2°C | 8.8°C | 21.1°C | 4.5°C | 162 mm | 85% | 5.3 m/s | 5 |
| 2009 | 16.0°C | 12.9°C | 9.9°C | 22.7°C | 6.6°C | 134 mm | 84% | 5 m/s | 5.4 |
| 2008 | 15.3°C | 12.2°C | 9.1°C | 20.0°C | 6.1°C | 116 mm | 88% | 4.8 m/s | 4.9 |
| 2007 | 15.4°C | 12.3°C | 9.3°C | 20.6°C | 3.7°C | 55 mm | 87% | 4.8 m/s | 5.5 |
| 2006 | 16.8°C | 13.9°C | 11.0°C | 21.0°C | 7.3°C | 153 mm | 90% | 6 m/s | 4.8 |
| 2005 | 15.9°C | 12.1°C | 8.2°C | 22.7°C | 4.7°C | 42 mm | 84% | 4.7 m/s | 5.8 |
| 2004 | 14.5°C | 11.1°C | 7.6°C | 21.2°C | 3.6°C | 49 mm | 80% | 5.1 m/s | 6 |
| 2003 | 16.0°C | 12.2°C | 8.5°C | 23.7°C | 5.3°C | 109 mm | 84% | 5.2 m/s | 6 |
| 2002 | 14.2°C | 11.0°C | 7.8°C | 22.6°C | 4.6°C | 89 mm | 83% | 5.3 m/s | 5.3 |
| 2001 | 17.0°C | 13.2°C | 9.5°C | 24.8°C | 4.3°C | 77 mm | 82% | 4.9 m/s | 6 |
| 2000 | 16.6°C | 12.8°C | 9.0°C | 22.4°C | 4.1°C | 74 mm | 79% | 4.5 m/s | 6.1 |
| 1999 🔥 | 19.0°C | 15.2°C | 11.5°C | 25.1°C | 7.2°C | 85 mm | 80% | 5 m/s | 6.5 |
| 1998 | 15.1°C | 12.2°C | 9.3°C | 23.8°C | 5.6°C | 89 mm | 86% | 5.3 m/s | 5.4 |
| 1997 | 14.5°C | 11.0°C | 7.5°C | 22.4°C | 3.7°C | 68 mm | 83% | 5.4 m/s | 5.8 |
| 1996 | 16.8°C | 12.8°C | 8.7°C | 23.4°C | 4.1°C | 32 mm | 78% | 4.9 m/s | 6.3 |
| 1995 | 18.3°C | 13.4°C | 8.5°C | 27.3°C | 4.2°C | 41 mm | 73% | 4.9 m/s | 5.9 |
| 1994 | 16.6°C | 12.8°C | 9.1°C | 24.8°C | 3.0°C | 51 mm | 85% | 5.7 m/s | 5.7 |
| 1993 | 15.8°C | 11.9°C | 8.1°C | 24.0°C | 3.2°C | 37 mm | 80% | 5.4 m/s | 5.4 |
| 1992 | 15.7°C | 12.0°C | 8.4°C | 21.4°C | 3.8°C | 56 mm | 83% | 4.6 m/s | 5.6 |
| 1991 | 16.6°C | 12.1°C | 7.6°C | 24.8°C | 2.9°C | 26 mm | 75% | 5.3 m/s | 5.9 |
| 1990 | 16.5°C | 12.7°C | 8.9°C | 23.6°C | 4.5°C | 39 mm | 84% | 5.5 m/s | 5.8 |
| 1989 | 16.1°C | 12.9°C | 9.6°C | 21.6°C | 6.1°C | 63 mm | 85% | 4.7 m/s | 5.5 |
| 1988 | 14.2°C | 11.0°C | 7.9°C | 20.5°C | 4.1°C | 77 mm | 86% | 5.5 m/s | 5.4 |
| 1987 | 15.6°C | 11.9°C | 8.3°C | 21.8°C | 4.5°C | 62 mm | 81% | 4.9 m/s | 5.6 |
| 1986 | 14.6°C | 11.2°C | 7.8°C | 21.1°C | 4.0°C | 75 mm | 82% | 5.6 m/s | 5.7 |
| 1985 | 14.2°C | 10.9°C | 7.6°C | 19.6°C | 5.2°C | 93 mm | 86% | 6 m/s | 5.2 |
| 1984 | 15.2°C | 11.8°C | 8.3°C | 21.3°C | 2.5°C | 69 mm | 83% | 6 m/s | 5.1 |
| 1983 | 17.2°C | 13.6°C | 10.0°C | 23.0°C | 7.3°C | 58 mm | 82% | 4.3 m/s | — |
| 1982 | 13.8°C | 10.7°C | 7.7°C | 21.3°C | 4.6°C | 154 mm | 85% | 4.7 m/s | — |
| 1981 | 16.1°C | 12.7°C | 9.2°C | 20.6°C | 5.7°C | 76 mm | 84% | 5.3 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 15.7°C with lows near 8.9°C (mean 12.3°C), based on 45 years of NASA POWER data.
June averages 86 mm of rainfall in Sydney Mines, about average for rainfall. The wettest on record was 162 mm in 2010.
The hottest June reached 27.4°C in 2020. The coldest dipped to 1.7°C in 2018.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 1.3°C. Daytime highs moved from 15.3°C to 16.5°C and overnight lows from 8.6°C to 9.8°C over the same span.
June is one of the warmer months of the year in Sydney Mines and about average for rainfall, so plan for around 15.7°C daytime highs and 8.9°C at night.
Not quite — June is the 9th coolest month in Sydney Mines, averaging 12.3°C.
For June in Sydney Mines, pack light layers you can adjust through the day, with typical highs of 15.7°C and lows of 8.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 84% — quite humid.
Average wind speed in June is 5.2 m/s. The windiest June on record averaged 6 m/s (1984).
The wettest June on record was 2010 with 162 mm. On average, June sees 86 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 Sydney Mines 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.
