July is one of the cooler months of the year in Adelaide River, with average highs near 34.1°C and lows around 18°C (mean 26.1°C). It is one of the drier months, averaging 2 mm of rainfall and 41% relative humidity across the period.
July is one of the cooler months of the year in Adelaide River. Across 45 years of records, the warmest July in Adelaide River was 2017 — when the month averaged 28.5°C — while the coldest was 2006 at 23.1°C. Typical July days reach 34.1°C with nights near 18°C. The long-term July temperature trend is broadly flat.
July is one of the drier months in Adelaide River, averaging 2 mm of rainfall. The wettest July on record was 1986 with 34 mm, while the driest were 2018, 2020 and 2021, among others at 0 mm.
Relative humidity in Adelaide River during July averages 41%. The most humid July was 1986 at 53%, and the least humid was 1982 at 33%.
July receives about 5.5 kWh/m²/day of solar energy in Adelaide River. The sunniest Julys were 1992, 1996 and 2020 at 5.8 kWh/m²/day, and the cloudiest was 1984 at 4.5.
Average wind speed in Adelaide River during July is 2.7 m/s. The windiest July was 2010 at 3.3 m/s, while the calmest was 2021 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.9°C | 26.0°C | 25.3°C | 26.5°C | 26.5°C | +0.6°C |
| Avg High | 33.9°C | 34.2°C | 33.6°C | 34.3°C | 34.4°C | +0.5°C |
| Avg Low | 17.9°C | 17.9°C | 17.0°C | 18.7°C | 18.5°C | +0.6°C |
| Avg Rain | 4 mm | 1 mm | 0 mm | 2 mm | 1 mm | -3 mm |
July temperatures in Adelaide River have risen by about 1.1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 9.8°C (2006) to a record high of 38.5°C (1981).
Rainfall in July is one of the drier months, averaging 2 mm, with a wettest year of 34 mm.
One of the best times to visit Adelaide River
July is one of the best times to visit Adelaide River. Expect days averaging 34.1°C and nights around 18°C (mean 26.1°C) — cooler than Adelaide River's yearly average — with low rainfall (2 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 | 35.2°C | 27.4°C | 19.6°C | 37.0°C | 14.5°C | 1 mm | 44% | 2.3 m/s | 5.1 |
| 2024 | 34.3°C | 26.6°C | 18.9°C | 36.7°C | 12.3°C | 1 mm | 40% | 2.9 m/s | 5.3 |
| 2023 | 34.3°C | 26.9°C | 19.4°C | 36.8°C | 10.8°C | 0 mm | 41% | 2.8 m/s | 5.2 |
| 2022 | 32.4°C | 23.8°C | 15.2°C | 36.1°C | 11.3°C | 3 mm | 39% | 2.8 m/s | 5.5 |
| 2021 | 35.9°C | 27.9°C | 19.9°C | 37.8°C | 15.7°C | 0 mm | 41% | 2.1 m/s | 5.5 |
| 2020 | 34.6°C | 26.1°C | 17.7°C | 37.2°C | 13.0°C | 0 mm | 34% | 3 m/s | 5.8 |
| 2019 | 34.0°C | 25.8°C | 17.6°C | 35.9°C | 14.5°C | 0 mm | 38% | 2.5 m/s | 5.7 |
| 2018 | 34.9°C | 27.1°C | 19.3°C | 36.8°C | 14.4°C | 0 mm | 38% | 2.4 m/s | 5.5 |
| 2017 🔥 | 35.8°C | 28.5°C | 21.2°C | 37.0°C | 17.5°C | 0 mm | 46% | 2.5 m/s | 5.4 |
| 2016 | 34.3°C | 26.4°C | 18.6°C | 36.9°C | 13.1°C | 9 mm | 42% | 2.7 m/s | 5.5 |
| 2015 | 33.9°C | 25.8°C | 17.8°C | 37.6°C | 12.7°C | 0 mm | 38% | 2.9 m/s | 5.6 |
| 2014 | 34.3°C | 26.2°C | 18.2°C | 36.8°C | 13.8°C | 0 mm | 41% | 2.3 m/s | 5.6 |
| 2013 | 33.9°C | 26.2°C | 18.6°C | 35.5°C | 13.3°C | 0 mm | 43% | 2.9 m/s | 5.4 |
| 2012 | 33.5°C | 25.7°C | 17.9°C | 37.2°C | 13.1°C | 0 mm | 38% | 2.8 m/s | 5.5 |
| 2011 | 32.8°C | 25.0°C | 17.2°C | 35.8°C | 13.0°C | 0 mm | 48% | 3.1 m/s | 5.4 |
| 2010 | 35.1°C | 28.0°C | 20.9°C | 37.3°C | 17.6°C | 6 mm | 50% | 3.3 m/s | 5.1 |
| 2009 | 34.3°C | 26.1°C | 17.8°C | 37.1°C | 12.8°C | 0 mm | 37% | 2.6 m/s | 5.7 |
| 2008 | 34.3°C | 25.6°C | 16.8°C | 36.4°C | 11.6°C | 0 mm | 34% | 2.8 m/s | 5.7 |
| 2007 | 32.9°C | 24.1°C | 15.3°C | 35.4°C | 10.5°C | 0 mm | 42% | 2.7 m/s | 5.7 |
| 2006 ❄️ | 31.2°C | 23.1°C | 15.0°C | 35.7°C | 9.8°C | 0 mm | 53% | 2.6 m/s | 5.6 |
| 2005 | 35.0°C | 27.3°C | 19.6°C | 37.0°C | 12.8°C | 0 mm | 40% | 2.7 m/s | 5.4 |
| 2004 | 33.6°C | 25.0°C | 16.4°C | 36.2°C | 10.9°C | 0 mm | 43% | 2.7 m/s | 5.6 |
| 2003 | 34.8°C | 26.7°C | 18.6°C | 36.6°C | 14.9°C | 0 mm | 39% | 2.7 m/s | 5.5 |
| 2002 | 33.5°C | 25.0°C | 16.4°C | 35.9°C | 12.3°C | 0 mm | 36% | 2.5 m/s | 5.6 |
| 2001 | 33.7°C | 25.8°C | 17.8°C | 36.1°C | 11.5°C | 4 mm | 44% | 2.7 m/s | 5.3 |
| 2000 | 32.9°C | 24.6°C | 16.3°C | 35.7°C | 12.9°C | 0 mm | 50% | 2.4 m/s | 5.6 |
| 1999 | 33.1°C | 24.5°C | 15.9°C | 35.2°C | 12.5°C | 0 mm | 37% | 2.6 m/s | 5.6 |
| 1998 | 35.5°C | 28.1°C | 20.6°C | 38.0°C | 16.0°C | 0 mm | 47% | 2.6 m/s | 5.3 |
| 1997 | 33.5°C | 25.3°C | 17.2°C | 35.3°C | 13.5°C | 0 mm | 38% | 2.9 m/s | 5.5 |
| 1996 | 34.5°C | 26.0°C | 17.6°C | 36.8°C | 12.2°C | 2 mm | 40% | 2.4 m/s | 5.8 |
| 1995 | 34.9°C | 26.3°C | 17.7°C | 37.2°C | 14.4°C | 0 mm | 41% | 2.8 m/s | 5.4 |
| 1994 | 33.0°C | 24.4°C | 15.9°C | 34.6°C | 12.3°C | 0 mm | 36% | 2.8 m/s | 5.6 |
| 1993 | 34.0°C | 26.4°C | 18.8°C | 36.8°C | 14.2°C | 0 mm | 44% | 2.3 m/s | 5.4 |
| 1992 | 34.1°C | 25.6°C | 17.1°C | 36.9°C | 12.5°C | 0 mm | 40% | 2.9 m/s | 5.8 |
| 1991 | 34.4°C | 26.6°C | 18.7°C | 36.7°C | 13.1°C | 0 mm | 41% | 2.3 m/s | 5.2 |
| 1990 | 34.9°C | 27.2°C | 19.5°C | 37.3°C | 12.3°C | 6 mm | 45% | 2.3 m/s | 5.4 |
| 1989 | 34.5°C | 26.5°C | 18.5°C | 36.7°C | 13.8°C | 0 mm | 43% | 2.3 m/s | 5.5 |
| 1988 | 35.7°C | 27.6°C | 19.5°C | 36.8°C | 14.6°C | 0 mm | 40% | 2.6 m/s | 5.7 |
| 1987 | 33.9°C | 25.8°C | 17.6°C | 35.4°C | 14.4°C | 1 mm | 40% | 2.6 m/s | 5.4 |
| 1986 🌧️ | 33.4°C | 26.4°C | 19.4°C | 37.5°C | 14.3°C | 34 mm | 53% | 2.6 m/s | 5 |
| 1985 | 32.2°C | 23.8°C | 15.3°C | 35.0°C | 10.6°C | 1 mm | 42% | 2.8 m/s | 5.6 |
| 1984 | 33.4°C | 25.3°C | 17.2°C | 35.9°C | 10.4°C | 0 mm | 43% | 2.8 m/s | 4.5 |
| 1983 | 33.4°C | 25.1°C | 16.8°C | 35.7°C | 10.2°C | 0 mm | 40% | 2.8 m/s | — |
| 1982 | 33.0°C | 24.3°C | 15.6°C | 35.5°C | 11.7°C | 0 mm | 33% | 2.8 m/s | — |
| 1981 | 35.6°C | 28.4°C | 21.3°C | 38.5°C | 15.9°C | 1 mm | 44% | 2.7 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 34.1°C with lows near 18°C (mean 26.1°C), based on 45 years of NASA POWER data.
July averages 2 mm of rainfall in Adelaide River, one of the drier months. The wettest on record was 34 mm in 1986.
The hottest July reached 38.5°C in 1981. The coldest dipped to 9.8°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.1°C. Daytime highs moved from 33.5°C to 34.4°C and overnight lows from 17.2°C to 18.6°C over the same span.
July is one of the cooler months of the year in Adelaide River and one of the drier months, so plan for around 34.1°C daytime highs and 18°C at night.
Not quite — July is the 3rd coolest month in Adelaide River, averaging 26.1°C.
For July in Adelaide River, pack light, breathable clothing and sun protection, with typical highs of 34.1°C and lows of 18°C.
Relative humidity in July averages 41% — relatively dry.
Average wind speed in July is 2.7 m/s. The windiest July on record averaged 3.3 m/s (2010).
The wettest July on record was 1986 with 34 mm. On average, July sees 2 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 Adelaide River 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.
