July is one of the cooler months of the year in Sydney, with average highs near 16.1°C and lows around 11.4°C (mean 13.8°C). It is one of the drier months, averaging 57 mm of rainfall and 74% relative humidity across the period.
July is one of the cooler months of the year in Sydney. Across 45 years of records, the warmest July in Sydney was 2023 — when the month averaged 15.5°C — while the coldest was 1983 at 11.9°C. Typical July days reach 16.1°C with nights near 11.4°C. The long-term trend is warming, about 0.4°C per decade.
July is one of the drier months in Sydney, averaging 57 mm of rainfall. The wettest July on record was 2022 with 236 mm, while the driest was 2018 at 3 mm.
Relative humidity in Sydney during July averages 74%. The most humid July was 1993 at 80%, and the least humid was 2018 at 62%.
July receives about 2.7 kWh/m²/day of solar energy in Sydney. The sunniest July was 2018 at 3.2 kWh/m²/day, and the cloudiest was 1984 at 2.
Average wind speed in Sydney during July is 3.4 m/s. The windiest July was 2022 at 4 m/s, while the calmest was 1993 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 12.9°C | 13.5°C | 14.0°C | 14.2°C | 14.4°C | +1.5°C |
| Avg High | 15.2°C | 15.7°C | 16.4°C | 16.8°C | 16.7°C | +1.5°C |
| Avg Low | 10.6°C | 11.3°C | 11.6°C | 11.7°C | 12.2°C | +1.6°C |
| Avg Rain | 67 mm | 66 mm | 46 mm | 35 mm | 78 mm | +11 mm |
July temperatures in Sydney have risen by about 1.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 5.7°C (1984) to a record high of 23°C (2017).
Rainfall in July is one of the drier months, averaging 57 mm, with a wettest year of 236 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, July — with days averaging 16.1°C and nights around 11.4°C (mean 13.8°C) and moderate rainfall (57 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 | 16.2°C | 14.1°C | 12.0°C | 18.8°C | 9.4°C | 75 mm | 74% | 3.7 m/s | 2.7 |
| 2024 | 16.1°C | 14.0°C | 11.9°C | 18.9°C | 8.9°C | 24 mm | 74% | 3.7 m/s | 2.7 |
| 2023 🔥 | 18.6°C | 15.5°C | 12.4°C | 22.5°C | 9.5°C | 8 mm | 70% | 2.8 m/s | 3 |
| 2022 🌧️ | 15.9°C | 14.4°C | 12.8°C | 18.4°C | 9.6°C | 236 mm | 78% | 4 m/s | 2.4 |
| 2021 | 16.5°C | 14.0°C | 11.4°C | 21.3°C | 8.6°C | 19 mm | 72% | 3.4 m/s | 2.8 |
| 2020 | 16.7°C | 14.6°C | 12.6°C | 20.4°C | 10.1°C | 107 mm | 76% | 3.3 m/s | 2.6 |
| 2019 | 18.0°C | 15.2°C | 12.3°C | 21.0°C | 9.4°C | 15 mm | 66% | 3.1 m/s | 3 |
| 2018 | 18.0°C | 14.6°C | 11.2°C | 22.4°C | 7.3°C | 3 mm | 62% | 3.1 m/s | 3.2 |
| 2017 | 17.7°C | 14.7°C | 11.7°C | 23.0°C | 9.5°C | 11 mm | 66% | 3.3 m/s | 3.1 |
| 2016 | 17.2°C | 14.7°C | 12.2°C | 22.4°C | 9.2°C | 46 mm | 74% | 3.4 m/s | 2.7 |
| 2015 | 15.5°C | 13.0°C | 10.4°C | 18.3°C | 7.9°C | 21 mm | 74% | 3.2 m/s | 2.9 |
| 2014 | 17.1°C | 14.3°C | 11.6°C | 21.6°C | 9.5°C | 11 mm | 69% | 3.5 m/s | 2.9 |
| 2013 | 16.8°C | 14.4°C | 12.0°C | 19.8°C | 9.5°C | 17 mm | 76% | 2.9 m/s | 2.9 |
| 2012 | 15.8°C | 13.7°C | 11.6°C | 19.6°C | 9.7°C | 36 mm | 77% | 3.6 m/s | 2.6 |
| 2011 | 15.9°C | 13.7°C | 11.5°C | 19.5°C | 7.8°C | 122 mm | 75% | 3.8 m/s | 2.7 |
| 2010 | 16.1°C | 14.1°C | 12.1°C | 19.5°C | 9.0°C | 70 mm | 78% | 3.2 m/s | 2.3 |
| 2009 | 16.4°C | 14.0°C | 11.6°C | 20.7°C | 8.7°C | 40 mm | 71% | 3.4 m/s | 2.8 |
| 2008 | 16.0°C | 13.4°C | 10.9°C | 19.6°C | 7.4°C | 43 mm | 72% | 3.4 m/s | 2.8 |
| 2007 | 15.0°C | 12.7°C | 10.4°C | 18.8°C | 6.0°C | 29 mm | 75% | 3.7 m/s | 2.8 |
| 2006 | 16.5°C | 14.3°C | 12.2°C | 20.7°C | 9.1°C | 85 mm | 74% | 3.2 m/s | 2.6 |
| 2005 | 17.0°C | 14.4°C | 11.9°C | 19.2°C | 9.6°C | 23 mm | 73% | 3.2 m/s | 2.9 |
| 2004 | 16.6°C | 14.1°C | 11.7°C | 21.3°C | 9.4°C | 45 mm | 70% | 3.4 m/s | 2.7 |
| 2003 | 15.9°C | 13.6°C | 11.3°C | 19.1°C | 7.6°C | 40 mm | 75% | 3.2 m/s | 2.7 |
| 2002 | 17.1°C | 14.0°C | 10.9°C | 19.6°C | 6.8°C | 21 mm | 65% | 3.3 m/s | 3 |
| 2001 | 16.5°C | 14.9°C | 13.3°C | 18.4°C | 9.5°C | 104 mm | 78% | 3.5 m/s | 2.3 |
| 2000 | 16.6°C | 14.1°C | 11.6°C | 20.9°C | 7.1°C | 32 mm | 71% | 3.4 m/s | 2.8 |
| 1999 | 16.4°C | 14.5°C | 12.7°C | 18.7°C | 8.6°C | 150 mm | 76% | 3.3 m/s | 2.5 |
| 1998 | 15.6°C | 13.7°C | 11.8°C | 19.8°C | 9.0°C | 79 mm | 77% | 3.6 m/s | 2.4 |
| 1997 | 15.7°C | 13.9°C | 12.1°C | 18.6°C | 9.3°C | 65 mm | 76% | 3.5 m/s | 2.6 |
| 1996 | 15.6°C | 13.2°C | 10.9°C | 18.3°C | 7.7°C | 61 mm | 75% | 3.5 m/s | 2.7 |
| 1995 | 14.7°C | 12.1°C | 9.5°C | 17.5°C | 7.0°C | 11 mm | 70% | 3.4 m/s | 2.8 |
| 1994 | 16.3°C | 13.6°C | 10.9°C | 19.5°C | 9.0°C | 25 mm | 73% | 3.1 m/s | 2.9 |
| 1993 | 16.4°C | 14.3°C | 12.2°C | 18.4°C | 9.1°C | 78 mm | 80% | 2.5 m/s | 2.3 |
| 1992 | 16.1°C | 13.5°C | 11.0°C | 20.6°C | 8.7°C | 19 mm | 73% | 3.3 m/s | 2.8 |
| 1991 | 15.2°C | 13.0°C | 10.8°C | 17.4°C | 7.7°C | 82 mm | 77% | 3.4 m/s | 2.7 |
| 1990 | 15.4°C | 13.1°C | 10.8°C | 21.3°C | 8.7°C | 87 mm | 78% | 3.4 m/s | 2.7 |
| 1989 | 14.6°C | 12.5°C | 10.4°C | 18.8°C | 6.8°C | 28 mm | 78% | 3.6 m/s | 2.7 |
| 1988 | 16.4°C | 14.2°C | 12.0°C | 19.1°C | 9.0°C | 126 mm | 77% | 3 m/s | 2.8 |
| 1987 | 15.6°C | 13.4°C | 11.1°C | 18.9°C | 8.2°C | 84 mm | 73% | 3 m/s | 2.8 |
| 1986 | 15.6°C | 13.0°C | 10.4°C | 18.1°C | 7.6°C | 29 mm | 72% | 3.3 m/s | 2.7 |
| 1985 | 15.4°C | 13.1°C | 10.8°C | 19.3°C | 7.9°C | 62 mm | 75% | 3.7 m/s | 2.7 |
| 1984 | 14.6°C | 12.4°C | 10.1°C | 17.1°C | 5.7°C | 143 mm | 78% | 3.7 m/s | 2 |
| 1983 ❄️ | 14.3°C | 11.9°C | 9.6°C | 17.3°C | 5.8°C | 29 mm | 77% | 3.1 m/s | — |
| 1982 | 15.0°C | 12.9°C | 10.8°C | 16.5°C | 7.0°C | 58 mm | 73% | 3.7 m/s | — |
| 1981 | 15.6°C | 13.0°C | 10.4°C | 19.0°C | 8.6°C | 47 mm | 72% | 3.5 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 16.1°C with lows near 11.4°C (mean 13.8°C), based on 45 years of NASA POWER data.
July averages 57 mm of rainfall in Sydney, one of the drier months. The wettest on record was 236 mm in 2022.
The hottest July reached 23°C in 2017. The coldest dipped to 5.7°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.7°C. Daytime highs moved from 15°C to 16.7°C and overnight lows from 10.3°C to 12.1°C over the same span.
July is one of the cooler months of the year in Sydney and one of the drier months, so plan for around 16.1°C daytime highs and 11.4°C at night.
Yes — July is the coldest month of the year in Sydney, averaging 13.8°C.
For July in Sydney, pack light layers you can adjust through the day, with typical highs of 16.1°C and lows of 11.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 74% — moderately humid.
Average wind speed in July is 3.4 m/s. The windiest July on record averaged 4 m/s (2022).
The wettest July on record was 2022 with 236 mm. On average, July sees 57 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 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.
