June is one of the cooler months of the year in Sydney, with average highs near 16.8°C and lows around 12.6°C (mean 14.7°C). It is about average for rainfall, averaging 77 mm of rainfall and 75% relative humidity across the period.
June is one of the cooler months of the year in Sydney. Across 45 years of records, the warmest June in Sydney was 2005 — when the month averaged 16°C — while the coldest was 1985 at 13°C. Typical June days reach 16.8°C with nights near 12.6°C. The long-term trend is warming, about 0.3°C per decade.
June is about average for rainfall in Sydney, averaging 77 mm of rainfall. The wettest June on record was 1991 with 330 mm, while the driest was 2022 at 5 mm.
Relative humidity in Sydney during June averages 75%. The most humid June was 1989 at 81%, and the least humid was 2004 at 66%.
June receives about 2.4 kWh/m²/day of solar energy in Sydney. The sunniest June was 2004 at 2.8 kWh/m²/day, and the cloudiest was 2013 at 2.
Average wind speed in Sydney during June is 3.4 m/s. The windiest June was 2007 at 4.2 m/s, while the calmest was 2015 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.0°C | 14.6°C | 15.1°C | 15.1°C | 14.7°C | +0.7°C |
| Avg High | 16.2°C | 16.5°C | 17.3°C | 17.1°C | 16.9°C | +0.7°C |
| Avg Low | 11.8°C | 12.5°C | 12.8°C | 13.2°C | 12.4°C | +0.6°C |
| Avg Rain | 68 mm | 94 mm | 85 mm | 90 mm | 28 mm | -40 mm |
June temperatures in Sydney have risen by about 0.9°C between 1981–1985 and 2021–2025.
June has ranged from a record low of 5.4°C (1983) to a record high of 22.2°C (1996).
Rainfall in June is about average for rainfall, averaging 77 mm, with a wettest year of 330 mm.
A quieter season to visit Sydney
If your dates are flexible, the more temperate months of December and March tend to be the most comfortable for visiting Sydney. That said, June — with days averaging 16.8°C and nights around 12.6°C (mean 14.7°C) and moderate rainfall (77 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 | 16.4°C | 14.2°C | 12.1°C | 19.9°C | 9.5°C | 7 mm | 73% | 3.3 m/s | 2.6 |
| 2024 | 16.6°C | 14.5°C | 12.4°C | 18.9°C | 8.8°C | 90 mm | 77% | 3.4 m/s | 2.3 |
| 2023 | 18.0°C | 15.3°C | 12.6°C | 21.8°C | 9.4°C | 12 mm | 69% | 3.1 m/s | 2.6 |
| 2022 | 16.3°C | 14.1°C | 11.9°C | 18.5°C | 9.6°C | 5 mm | 75% | 3.6 m/s | 2.7 |
| 2021 | 16.8°C | 14.5°C | 12.3°C | 19.4°C | 7.8°C | 40 mm | 76% | 3.2 m/s | 2.4 |
| 2020 | 17.5°C | 15.3°C | 13.0°C | 20.7°C | 10.3°C | 15 mm | 74% | 3.1 m/s | 2.5 |
| 2019 | 18.1°C | 15.8°C | 13.6°C | 22.2°C | 10.8°C | 48 mm | 73% | 3.3 m/s | 2.3 |
| 2018 | 17.2°C | 15.1°C | 13.0°C | 19.5°C | 8.7°C | 60 mm | 73% | 3.7 m/s | 2.3 |
| 2017 | 17.4°C | 15.6°C | 13.7°C | 18.8°C | 9.6°C | 66 mm | 75% | 3.2 m/s | 2.2 |
| 2016 | 17.5°C | 15.4°C | 13.3°C | 19.9°C | 9.2°C | 182 mm | 74% | 3.7 m/s | 2.3 |
| 2015 | 16.9°C | 14.8°C | 12.7°C | 20.4°C | 10.1°C | 48 mm | 77% | 2.8 m/s | 2.3 |
| 2014 | 18.0°C | 15.9°C | 13.7°C | 20.3°C | 11.1°C | 43 mm | 72% | 3.5 m/s | 2.4 |
| 2013 | 16.8°C | 15.2°C | 13.6°C | 20.4°C | 11.6°C | 191 mm | 80% | 3.5 m/s | 2 |
| 2012 | 16.2°C | 14.3°C | 12.4°C | 18.4°C | 9.4°C | 119 mm | 77% | 3.2 m/s | 2.2 |
| 2011 | 16.7°C | 14.8°C | 12.9°C | 18.5°C | 9.2°C | 67 mm | 73% | 4 m/s | 2.5 |
| 2010 | 16.5°C | 14.5°C | 12.6°C | 18.9°C | 7.4°C | 80 mm | 75% | 3.4 m/s | 2.4 |
| 2009 | 17.1°C | 15.1°C | 13.2°C | 18.7°C | 9.4°C | 64 mm | 74% | 3.1 m/s | 2.3 |
| 2008 | 17.6°C | 15.8°C | 14.0°C | 19.5°C | 9.2°C | 103 mm | 79% | 3.7 m/s | 2.1 |
| 2007 | 16.1°C | 14.3°C | 12.5°C | 19.1°C | 8.6°C | 288 mm | 79% | 4.2 m/s | 2.1 |
| 2006 | 16.1°C | 14.4°C | 12.7°C | 17.5°C | 9.8°C | 121 mm | 76% | 3.2 m/s | 2.3 |
| 2005 🔥 | 18.1°C | 16.0°C | 13.8°C | 21.0°C | 8.9°C | 134 mm | 72% | 3.2 m/s | 2.4 |
| 2004 | 18.3°C | 15.2°C | 12.1°C | 22.2°C | 9.4°C | 19 mm | 66% | 3.2 m/s | 2.8 |
| 2003 | 17.5°C | 15.3°C | 13.0°C | 20.5°C | 10.5°C | 44 mm | 77% | 3 m/s | 2.7 |
| 2002 | 17.2°C | 14.6°C | 12.1°C | 21.3°C | 8.3°C | 25 mm | 70% | 3.5 m/s | 2.5 |
| 2001 | 18.2°C | 15.8°C | 13.4°C | 21.0°C | 10.9°C | 17 mm | 74% | 3 m/s | 2.5 |
| 2000 | 16.4°C | 14.0°C | 11.5°C | 20.0°C | 8.3°C | 40 mm | 74% | 3.4 m/s | 2.6 |
| 1999 | 17.0°C | 15.2°C | 13.3°C | 19.2°C | 8.8°C | 66 mm | 75% | 3.7 m/s | 2.3 |
| 1998 | 16.7°C | 15.0°C | 13.3°C | 20.7°C | 8.9°C | 97 mm | 78% | 3.7 m/s | 2.1 |
| 1997 | 17.0°C | 14.8°C | 12.6°C | 21.6°C | 10.1°C | 92 mm | 74% | 3.2 m/s | 2.3 |
| 1996 | 17.2°C | 15.4°C | 13.6°C | 22.2°C | 9.6°C | 81 mm | 75% | 3.3 m/s | 2.3 |
| 1995 | 15.6°C | 13.7°C | 11.7°C | 20.6°C | 8.8°C | 57 mm | 78% | 3.6 m/s | 2.3 |
| 1994 | 16.3°C | 14.2°C | 12.0°C | 18.7°C | 9.6°C | 68 mm | 76% | 3.2 m/s | 2.5 |
| 1993 | 16.3°C | 13.9°C | 11.4°C | 19.6°C | 9.3°C | 36 mm | 71% | 3.1 m/s | 2.5 |
| 1992 | 16.0°C | 14.1°C | 12.1°C | 18.8°C | 8.7°C | 77 mm | 75% | 3.1 m/s | 2.5 |
| 1991 🌧️ | 18.0°C | 15.8°C | 13.6°C | 21.3°C | 8.2°C | 330 mm | 79% | 3.5 m/s | 2.2 |
| 1990 | 15.3°C | 13.4°C | 11.5°C | 17.1°C | 7.9°C | 33 mm | 78% | 3.4 m/s | 2.6 |
| 1989 | 15.9°C | 14.3°C | 12.7°C | 18.2°C | 8.8°C | 172 mm | 81% | 3.7 m/s | 2.1 |
| 1988 | 16.7°C | 14.6°C | 12.5°C | 20.2°C | 10.0°C | 60 mm | 77% | 3.4 m/s | 2.5 |
| 1987 | 17.8°C | 15.4°C | 13.0°C | 21.8°C | 8.7°C | 55 mm | 73% | 3.1 m/s | 2.5 |
| 1986 | 16.5°C | 13.9°C | 11.3°C | 20.8°C | 7.4°C | 13 mm | 69% | 3 m/s | 2.6 |
| 1985 ❄️ | 15.4°C | 13.0°C | 10.6°C | 17.3°C | 7.4°C | 82 mm | 77% | 3.2 m/s | 2.6 |
| 1984 | 16.5°C | 14.1°C | 11.8°C | 19.8°C | 7.9°C | 61 mm | 76% | 2.9 m/s | 2.6 |
| 1983 | 15.4°C | 13.4°C | 11.4°C | 17.2°C | 5.4°C | 62 mm | 76% | 2.9 m/s | — |
| 1982 | 16.1°C | 14.1°C | 12.2°C | 18.7°C | 7.9°C | 69 mm | 73% | 3.8 m/s | — |
| 1981 | 15.6°C | 13.3°C | 11.0°C | 18.1°C | 7.7°C | 43 mm | 76% | 3.7 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 16.8°C with lows near 12.6°C (mean 14.7°C), based on 45 years of NASA POWER data.
June averages 77 mm of rainfall in Sydney, about average for rainfall. The wettest on record was 330 mm in 1991.
The hottest June reached 22.2°C in 1996. The coldest dipped to 5.4°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 0.9°C. Daytime highs moved from 15.8°C to 16.8°C and overnight lows from 11.4°C to 12.3°C over the same span.
June is one of the cooler months of the year in Sydney and about average for rainfall, so plan for around 16.8°C daytime highs and 12.6°C at night.
Not quite — June is the 3rd coolest month in Sydney, averaging 14.7°C.
For June in Sydney, pack light layers you can adjust through the day, with typical highs of 16.8°C and lows of 12.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 75% — moderately humid.
Average wind speed in June is 3.4 m/s. The windiest June on record averaged 4.2 m/s (2007).
The wettest June on record was 1991 with 330 mm. On average, June sees 77 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 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.
