July is one of the cooler months of the year in Gunnedah, with average highs near 15.9°C and lows around 3.8°C (mean 9.9°C). It is about average for rainfall, averaging 47 mm of rainfall and 77% relative humidity across the period.
July is one of the cooler months of the year in Gunnedah. Across 45 years of records, the warmest July in Gunnedah was 2019 — when the month averaged 11.8°C — while the coldest was 1989 at 8°C. Typical July days reach 15.9°C with nights near 3.8°C. The long-term trend is warming, about 0.4°C per decade.
July is about average for rainfall in Gunnedah, averaging 47 mm of rainfall. The wettest July on record was 1998 with 180 mm, while the driest was 2002 at 3 mm.
Relative humidity in Gunnedah during July averages 77%. The most humid Julys were 1989 and 1990 at 87%, and the least humid was 2002 at 58%.
July receives about 3.2 kWh/m²/day of solar energy in Gunnedah. The sunniest July was 2002 at 3.8 kWh/m²/day, and the cloudiest was 1984 at 2.
Average wind speed in Gunnedah during July is 1.7 m/s. The windiest July was 2024 at 2.1 m/s, while the calmest was 1993 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.1°C | 9.8°C | 10.0°C | 10.4°C | 10.3°C | +1.2°C |
| Avg High | 15.0°C | 15.6°C | 16.3°C | 16.7°C | 16.2°C | +1.2°C |
| Avg Low | 3.2°C | 3.9°C | 3.7°C | 4.1°C | 4.5°C | +1.3°C |
| Avg Rain | 67 mm | 60 mm | 38 mm | 32 mm | 36 mm | -31 mm |
July temperatures in Gunnedah have risen by about 1.2°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -3°C (1986) to a record high of 24.1°C (2018).
Rainfall in July is about average for rainfall, averaging 47 mm, with a wettest year of 180 mm.
A quieter season to visit Gunnedah
If your dates are flexible, the more temperate months of November and March tend to be the most comfortable for visiting Gunnedah. That said, July — with days averaging 15.9°C and nights around 3.8°C (mean 9.9°C) and moderate rainfall (47 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 | 15.8°C | 9.9°C | 4.0°C | 19.6°C | -0.3°C | 45 mm | 78% | 2 m/s | 3.1 |
| 2024 | 15.8°C | 10.2°C | 4.7°C | 19.5°C | -0.9°C | 28 mm | 79% | 2.1 m/s | 3.2 |
| 2023 | 18.4°C | 11.7°C | 5.1°C | 23.7°C | 0.5°C | 18 mm | 73% | 1.5 m/s | 3.4 |
| 2022 | 15.7°C | 9.9°C | 4.1°C | 19.4°C | -0.7°C | 40 mm | 81% | 1.8 m/s | 3.2 |
| 2021 | 14.8°C | 9.4°C | 3.9°C | 20.1°C | -1.1°C | 48 mm | 82% | 1.9 m/s | 3.2 |
| 2020 | 16.8°C | 10.9°C | 4.9°C | 21.3°C | -0.1°C | 39 mm | 79% | 1.7 m/s | 3.2 |
| 2019 🔥 | 18.9°C | 11.8°C | 4.6°C | 23.0°C | -0.2°C | 7 mm | 65% | 1.7 m/s | 3.6 |
| 2018 | 18.6°C | 11.3°C | 4.1°C | 24.1°C | -0.7°C | 12 mm | 60% | 1.8 m/s | 3.6 |
| 2017 | 17.6°C | 10.6°C | 3.5°C | 23.4°C | -0.9°C | 9 mm | 66% | 1.7 m/s | 3.5 |
| 2016 | 16.1°C | 10.4°C | 4.7°C | 22.3°C | -1.3°C | 25 mm | 81% | 1.7 m/s | 3.1 |
| 2015 | 15.1°C | 9.2°C | 3.2°C | 18.8°C | -1.1°C | 13 mm | 79% | 1.7 m/s | 3.2 |
| 2014 | 16.1°C | 9.6°C | 3.2°C | 20.9°C | 0.1°C | 23 mm | 75% | 1.8 m/s | 3.5 |
| 2013 | 17.3°C | 11.2°C | 5.1°C | 20.3°C | 0.5°C | 30 mm | 79% | 1.6 m/s | 3.3 |
| 2012 | 15.3°C | 9.6°C | 3.9°C | 18.8°C | -0.8°C | 86 mm | 82% | 1.8 m/s | 3.2 |
| 2011 | 15.7°C | 9.6°C | 3.5°C | 20.0°C | -0.9°C | 6 mm | 75% | 1.7 m/s | 3.2 |
| 2010 | 15.9°C | 10.6°C | 5.2°C | 21.1°C | -0.6°C | 105 mm | 82% | 1.7 m/s | 2.8 |
| 2009 | 16.1°C | 10.1°C | 4.1°C | 20.6°C | 1.1°C | 24 mm | 76% | 1.9 m/s | 3.3 |
| 2008 | 15.9°C | 9.7°C | 3.6°C | 20.7°C | -1.4°C | 34 mm | 74% | 1.8 m/s | 3.2 |
| 2007 | 14.8°C | 8.7°C | 2.7°C | 20.5°C | -2.6°C | 9 mm | 79% | 1.6 m/s | 3.5 |
| 2006 | 16.3°C | 10.3°C | 4.2°C | 21.0°C | -0.4°C | 62 mm | 76% | 1.6 m/s | 3.3 |
| 2005 | 16.0°C | 10.2°C | 4.3°C | 19.1°C | -1.6°C | 37 mm | 82% | 1.5 m/s | 3.4 |
| 2004 | 16.6°C | 10.0°C | 3.4°C | 23.0°C | -1.0°C | 48 mm | 73% | 1.6 m/s | 3.4 |
| 2003 | 16.7°C | 10.2°C | 3.8°C | 20.5°C | -1.2°C | 37 mm | 74% | 1.6 m/s | 3.4 |
| 2002 | 17.7°C | 10.1°C | 2.4°C | 21.5°C | -0.4°C | 3 mm | 58% | 1.7 m/s | 3.8 |
| 2001 | 16.3°C | 10.5°C | 4.6°C | 21.2°C | 1.4°C | 79 mm | 79% | 1.5 m/s | 3 |
| 2000 | 16.3°C | 9.9°C | 3.5°C | 20.1°C | -0.8°C | 44 mm | 76% | 1.6 m/s | 3.3 |
| 1999 | 16.7°C | 11.2°C | 5.6°C | 19.4°C | 0.8°C | 35 mm | 80% | 1.8 m/s | 3.1 |
| 1998 🌧️ | 14.7°C | 9.5°C | 4.3°C | 20.3°C | -1.6°C | 180 mm | 86% | 1.9 m/s | 2.7 |
| 1997 | 16.1°C | 9.7°C | 3.3°C | 19.0°C | -1.1°C | 15 mm | 76% | 1.7 m/s | 3.3 |
| 1996 | 14.8°C | 9.1°C | 3.5°C | 20.3°C | -1.8°C | 69 mm | 79% | 1.7 m/s | 3 |
| 1995 | 14.6°C | 8.5°C | 2.3°C | 17.3°C | -0.5°C | 19 mm | 72% | 1.7 m/s | 3.2 |
| 1994 | 17.3°C | 10.1°C | 2.9°C | 21.2°C | 0.0°C | 16 mm | 69% | 1.6 m/s | 3.7 |
| 1993 | 16.8°C | 11.5°C | 6.3°C | 20.8°C | 0.9°C | 95 mm | 84% | 1.4 m/s | 2.9 |
| 1992 | 17.1°C | 10.3°C | 3.4°C | 22.4°C | -0.2°C | 28 mm | 70% | 1.7 m/s | 3.6 |
| 1991 | 13.8°C | 8.3°C | 2.7°C | 19.1°C | -1.1°C | 62 mm | 83% | 1.6 m/s | 3.1 |
| 1990 | 14.0°C | 9.3°C | 4.5°C | 22.8°C | -0.6°C | 78 mm | 87% | 1.9 m/s | 3 |
| 1989 ❄️ | 12.8°C | 8.0°C | 3.2°C | 19.6°C | -1.6°C | 79 mm | 87% | 1.7 m/s | 3.1 |
| 1988 | 16.3°C | 10.6°C | 4.8°C | 18.7°C | -0.4°C | 61 mm | 81% | 1.7 m/s | 3.2 |
| 1987 | 15.8°C | 9.3°C | 2.9°C | 18.9°C | -1.6°C | 25 mm | 74% | 1.7 m/s | 3.5 |
| 1986 | 15.1°C | 9.2°C | 3.3°C | 19.6°C | -3.0°C | 142 mm | 78% | 1.8 m/s | 3.1 |
| 1985 | 16.3°C | 10.0°C | 3.6°C | 22.8°C | -1.0°C | 16 mm | 71% | 1.9 m/s | 3.4 |
| 1984 | 13.7°C | 8.7°C | 3.7°C | 18.7°C | 0.0°C | 145 mm | 80% | 1.9 m/s | 2 |
| 1983 | 14.1°C | 8.2°C | 2.4°C | 17.6°C | -1.9°C | 56 mm | 84% | 1.8 m/s | — |
| 1982 | 15.6°C | 8.9°C | 2.1°C | 17.9°C | -2.0°C | 17 mm | 72% | 1.8 m/s | — |
| 1981 | 15.0°C | 9.0°C | 3.0°C | 19.6°C | -0.3°C | 62 mm | 79% | 1.8 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 15.9°C with lows near 3.8°C (mean 9.9°C), based on 45 years of NASA POWER data.
July averages 47 mm of rainfall in Gunnedah, about average for rainfall. The wettest on record was 180 mm in 1998.
The hottest July reached 24.1°C in 2018. The coldest dipped to -3°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.2°C. Daytime highs moved from 14.9°C to 16.1°C and overnight lows from 3°C to 4.4°C over the same span.
July is one of the cooler months of the year in Gunnedah and about average for rainfall, so plan for around 15.9°C daytime highs and 3.8°C at night.
Yes — July is the coldest month of the year in Gunnedah, averaging 9.9°C.
For July in Gunnedah, pack warm layers and a jacket for chilly mornings, with typical highs of 15.9°C and lows of 3.8°C.
Relative humidity in July averages 77% — quite humid.
Average wind speed in July is 1.7 m/s. The windiest July on record averaged 2.1 m/s (2024).
The wettest July on record was 1998 with 180 mm. On average, July sees 47 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 Gunnedah 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.
