July is one of the cooler months of the year in Roebourne, with average highs near 27.5°C and lows around 13.4°C (mean 20.5°C). It is one of the drier months, averaging 10 mm of rainfall and 47% relative humidity across the period.
July is one of the cooler months of the year in Roebourne. Across 45 years of records, the warmest July in Roebourne was 2019 — when the month averaged 22.6°C — while the coldest was 1986 at 18°C. Typical July days reach 27.5°C with nights near 13.4°C. The long-term trend is warming, about 0.3°C per decade.
July is one of the drier months in Roebourne, averaging 10 mm of rainfall. The wettest July on record was 2005 with 74 mm, while the driest were 2018, 2021 and 2022, among others at 0 mm.
Relative humidity in Roebourne during July averages 47%. The most humid July was 1998 at 63%, and the least humid was 1994 at 34%.
July receives about 4.6 kWh/m²/day of solar energy in Roebourne. The sunniest July was 2002 at 5 kWh/m²/day, and the cloudiest was 1984 at 3.9.
Average wind speed in Roebourne during July is 3.4 m/s. The windiest July was 1997 at 4.3 m/s, while the calmest was 2017 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.1°C | 19.9°C | 20.9°C | 20.8°C | 20.8°C | +0.7°C |
| Avg High | 27.2°C | 27.0°C | 28.0°C | 27.7°C | 28.0°C | +0.8°C |
| Avg Low | 13.0°C | 12.9°C | 13.7°C | 13.9°C | 13.6°C | +0.6°C |
| Avg Rain | 12 mm | 13 mm | 11 mm | 8 mm | 6 mm | -6 mm |
July temperatures in Roebourne have risen by about 0.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 6.2°C (1998) to a record high of 34.6°C (2017).
Rainfall in July is one of the drier months, averaging 10 mm, with a wettest year of 74 mm.
One of the best times to visit Roebourne
July is one of the best times to visit Roebourne. Expect days averaging 27.5°C and nights around 13.4°C (mean 20.5°C) — cooler than Roebourne's yearly average — with low rainfall (10 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 | 27.1°C | 19.9°C | 12.6°C | 31.4°C | 8.5°C | 3 mm | 42% | 3.5 m/s | 4.8 |
| 2024 | 28.3°C | 21.3°C | 14.2°C | 33.2°C | 9.6°C | 0 mm | 42% | 3.3 m/s | 4.8 |
| 2023 | 27.5°C | 20.3°C | 13.2°C | 32.4°C | 9.4°C | 0 mm | 39% | 3.5 m/s | 4.7 |
| 2022 | 27.0°C | 19.3°C | 11.7°C | 30.9°C | 7.8°C | 0 mm | 46% | 3.2 m/s | 4.9 |
| 2021 | 29.2°C | 22.3°C | 15.4°C | 33.1°C | 12.1°C | 0 mm | 48% | 3.3 m/s | 4.7 |
| 2020 | 29.1°C | 21.8°C | 14.5°C | 32.5°C | 10.4°C | 34 mm | 40% | 3.3 m/s | 4.7 |
| 2019 🔥 | 29.7°C | 22.6°C | 15.5°C | 33.2°C | 11.5°C | 2 mm | 35% | 3.4 m/s | 4.6 |
| 2018 | 28.4°C | 21.0°C | 13.5°C | 30.4°C | 10.1°C | 0 mm | 46% | 3.1 m/s | 4.9 |
| 2017 | 29.5°C | 22.1°C | 14.7°C | 34.6°C | 9.6°C | 0 mm | 40% | 2.8 m/s | 4.8 |
| 2016 | 26.5°C | 20.6°C | 14.7°C | 31.9°C | 9.2°C | 45 mm | 62% | 3.8 m/s | 4.1 |
| 2015 | 27.6°C | 20.8°C | 14.0°C | 32.5°C | 10.8°C | 8 mm | 47% | 4.1 m/s | 4.3 |
| 2014 | 27.0°C | 19.6°C | 12.1°C | 31.7°C | 9.0°C | 10 mm | 42% | 3 m/s | 4.5 |
| 2013 | 26.2°C | 19.4°C | 12.6°C | 30.8°C | 7.8°C | 0 mm | 59% | 3.2 m/s | 4.7 |
| 2012 | 26.9°C | 19.6°C | 12.3°C | 30.5°C | 8.0°C | 0 mm | 36% | 3.6 m/s | 4.8 |
| 2011 | 27.5°C | 21.1°C | 14.6°C | 29.9°C | 11.4°C | 12 mm | 57% | 3.3 m/s | 4.2 |
| 2010 | 28.0°C | 21.5°C | 14.9°C | 33.0°C | 10.4°C | 7 mm | 42% | 3.9 m/s | 4.2 |
| 2009 | 27.9°C | 20.9°C | 13.9°C | 32.4°C | 9.1°C | 0 mm | 43% | 3.7 m/s | 4.6 |
| 2008 | 27.8°C | 20.2°C | 12.6°C | 31.0°C | 8.8°C | 0 mm | 42% | 3.6 m/s | 4.8 |
| 2007 | 28.0°C | 21.5°C | 15.0°C | 30.2°C | 10.6°C | 20 mm | 52% | 3.6 m/s | 4.2 |
| 2006 | 26.8°C | 19.1°C | 11.4°C | 31.5°C | 8.1°C | 0 mm | 42% | 3.6 m/s | 4.8 |
| 2005 🌧️ | 27.0°C | 19.8°C | 12.5°C | 29.3°C | 9.7°C | 74 mm | 50% | 3.3 m/s | 4.7 |
| 2004 | 27.9°C | 21.8°C | 15.7°C | 30.4°C | 10.3°C | 8 mm | 53% | 3.7 m/s | 4 |
| 2003 | 29.0°C | 21.3°C | 13.6°C | 32.0°C | 9.8°C | 0 mm | 41% | 3.1 m/s | 4.7 |
| 2002 | 28.8°C | 20.9°C | 13.0°C | 32.8°C | 9.2°C | 0 mm | 42% | 3.2 m/s | 5 |
| 2001 | 27.5°C | 20.9°C | 14.3°C | 30.2°C | 10.7°C | 6 mm | 49% | 3.5 m/s | 4.3 |
| 2000 | 29.1°C | 22.1°C | 15.2°C | 33.0°C | 10.8°C | 0 mm | 48% | 2.9 m/s | 4.8 |
| 1999 | 27.8°C | 20.2°C | 12.7°C | 30.7°C | 9.4°C | 2 mm | 44% | 3.5 m/s | 4.6 |
| 1998 | 25.4°C | 19.1°C | 12.8°C | 28.6°C | 6.2°C | 34 mm | 63% | 3.8 m/s | 4.2 |
| 1997 | 26.2°C | 19.2°C | 12.1°C | 29.6°C | 7.9°C | 23 mm | 44% | 4.3 m/s | 4.5 |
| 1996 | 27.6°C | 20.9°C | 14.3°C | 30.6°C | 8.2°C | 20 mm | 58% | 3.5 m/s | 4.6 |
| 1995 | 26.5°C | 19.6°C | 12.7°C | 29.9°C | 8.4°C | 21 mm | 55% | 3.5 m/s | 4.5 |
| 1994 | 28.7°C | 21.0°C | 13.2°C | 31.2°C | 8.9°C | 0 mm | 34% | 3.3 m/s | 4.9 |
| 1993 | 25.9°C | 18.8°C | 11.7°C | 29.8°C | 8.0°C | 2 mm | 54% | 3.7 m/s | 4.8 |
| 1992 | 28.0°C | 20.6°C | 13.3°C | 32.5°C | 9.7°C | 3 mm | 44% | 3.3 m/s | 4.6 |
| 1991 | 26.9°C | 19.9°C | 13.0°C | 29.5°C | 9.1°C | 14 mm | 59% | 2.9 m/s | 4.7 |
| 1990 | 26.5°C | 19.9°C | 13.4°C | 29.3°C | 8.8°C | 8 mm | 46% | 4 m/s | 4.4 |
| 1989 | 25.7°C | 18.9°C | 12.1°C | 31.4°C | 7.6°C | 3 mm | 56% | 3.2 m/s | 4.4 |
| 1988 | 28.7°C | 21.3°C | 13.9°C | 33.0°C | 9.8°C | 1 mm | 48% | 3.5 m/s | 4.9 |
| 1987 | 29.0°C | 21.8°C | 14.6°C | 32.4°C | 10.7°C | 5 mm | 42% | 3.1 m/s | 4.6 |
| 1986 ❄️ | 24.9°C | 18.0°C | 11.2°C | 27.0°C | 6.8°C | 10 mm | 52% | 3.5 m/s | 4.4 |
| 1985 | 28.3°C | 21.1°C | 13.9°C | 32.2°C | 10.1°C | 10 mm | 48% | 3 m/s | 4.6 |
| 1984 | 25.7°C | 19.2°C | 12.8°C | 30.0°C | 8.7°C | 40 mm | 54% | 3.6 m/s | 3.9 |
| 1983 | 26.9°C | 19.8°C | 12.7°C | 29.6°C | 9.4°C | 10 mm | 39% | 3.8 m/s | — |
| 1982 | 28.3°C | 20.9°C | 13.5°C | 32.3°C | 9.0°C | 0 mm | 38% | 3.2 m/s | — |
| 1981 | 27.1°C | 19.8°C | 12.5°C | 30.0°C | 8.8°C | 31 mm | 43% | 3.6 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 27.5°C with lows near 13.4°C (mean 20.5°C), based on 45 years of NASA POWER data.
July averages 10 mm of rainfall in Roebourne, one of the drier months. The wettest on record was 74 mm in 2005.
The hottest July reached 34.6°C in 2017. The coldest dipped to 6.2°C in 1998.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.4°C. Daytime highs moved from 27.3°C to 27.8°C and overnight lows from 13.1°C to 13.4°C over the same span.
July is one of the cooler months of the year in Roebourne and one of the drier months, so plan for around 27.5°C daytime highs and 13.4°C at night.
Yes — July is the coldest month of the year in Roebourne, averaging 20.5°C.
For July in Roebourne, pack light layers you can adjust through the day, with typical highs of 27.5°C and lows of 13.4°C.
Relative humidity in July averages 47% — relatively dry.
Average wind speed in July is 3.4 m/s. The windiest July on record averaged 4.3 m/s (1997).
The wettest July on record was 2005 with 74 mm. On average, July sees 10 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 Roebourne 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.
