July is one of the cooler months of the year in Narrabri, with average highs near 16°C and lows around 4°C (mean 10°C). It is about average for rainfall, averaging 47 mm of rainfall and 75% relative humidity across the period.
July is one of the cooler months of the year in Narrabri. Across 45 years of records, the warmest July in Narrabri was 2019 — when the month averaged 12.1°C — while the coldest was 1989 at 8°C. Typical July days reach 16°C with nights near 4°C. The long-term trend is warming, about 0.4°C per decade.
July is about average for rainfall in Narrabri, averaging 47 mm of rainfall. The wettest July on record was 1984 with 170 mm, while the driest was 2002 at 2 mm.
Relative humidity in Narrabri during July averages 75%. The most humid July was 1989 at 86%, and the least humid was 2002 at 55%.
July receives about 3.3 kWh/m²/day of solar energy in Narrabri. The sunniest Julys were 2002 and 2018 at 3.8 kWh/m²/day, and the cloudiest was 1984 at 2.3.
Average wind speed in Narrabri during July is 2 m/s. The windiest July was 2025 at 2.4 m/s, while the calmest was 2001 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.2°C | 9.9°C | 10.1°C | 10.6°C | 10.5°C | +1.3°C |
| Avg High | 15.0°C | 15.7°C | 16.4°C | 16.7°C | 16.4°C | +1.4°C |
| Avg Low | 3.4°C | 4.1°C | 3.9°C | 4.4°C | 4.6°C | +1.2°C |
| Avg Rain | 72 mm | 57 mm | 37 mm | 32 mm | 34 mm | -37 mm |
July temperatures in Narrabri have risen by about 1.3°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -2.8°C (2007) to a record high of 24.3°C (2018).
Rainfall in July is about average for rainfall, averaging 47 mm, with a wettest year of 170 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.3°C per decade, widening the gap between day and night.
A quieter season to visit Narrabri
If your dates are flexible, the more temperate months of November and March tend to be the most comfortable for visiting Narrabri. That said, July — with days averaging 16°C and nights around 4°C (mean 10°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 | 16.1°C | 10.2°C | 4.4°C | 19.9°C | 0.5°C | 41 mm | 77% | 2.4 m/s | 3.2 |
| 2024 | 15.9°C | 10.3°C | 4.7°C | 19.7°C | -1.0°C | 28 mm | 78% | 2.3 m/s | 3.2 |
| 2023 | 18.5°C | 11.8°C | 5.1°C | 23.8°C | 0.7°C | 15 mm | 72% | 1.8 m/s | 3.3 |
| 2022 | 16.1°C | 10.1°C | 4.1°C | 20.0°C | 0.5°C | 33 mm | 79% | 2.1 m/s | 3.3 |
| 2021 | 14.7°C | 9.3°C | 3.9°C | 20.1°C | -1.8°C | 58 mm | 82% | 2.3 m/s | 3.2 |
| 2020 | 16.9°C | 11.0°C | 5.1°C | 21.1°C | 1.2°C | 31 mm | 78% | 1.9 m/s | 3.3 |
| 2019 🔥 | 19.2°C | 12.1°C | 5.1°C | 23.4°C | -0.2°C | 7 mm | 63% | 2 m/s | 3.6 |
| 2018 | 18.7°C | 11.5°C | 4.4°C | 24.3°C | -1.0°C | 20 mm | 59% | 2 m/s | 3.8 |
| 2017 | 17.7°C | 10.9°C | 4.1°C | 22.7°C | -0.4°C | 10 mm | 65% | 1.9 m/s | 3.5 |
| 2016 | 16.1°C | 10.5°C | 4.9°C | 22.9°C | -1.4°C | 20 mm | 80% | 2 m/s | 3.2 |
| 2015 | 15.2°C | 9.4°C | 3.6°C | 18.8°C | -1.2°C | 15 mm | 78% | 2.1 m/s | 3.2 |
| 2014 | 16.1°C | 9.8°C | 3.5°C | 21.1°C | 0.3°C | 15 mm | 73% | 2 m/s | 3.5 |
| 2013 | 17.5°C | 11.5°C | 5.5°C | 20.4°C | 0.4°C | 30 mm | 77% | 1.9 m/s | 3.2 |
| 2012 | 15.3°C | 9.7°C | 4.2°C | 19.2°C | -0.3°C | 92 mm | 82% | 2.2 m/s | 3.3 |
| 2011 | 15.7°C | 9.6°C | 3.5°C | 20.0°C | -0.9°C | 7 mm | 75% | 2 m/s | 3.3 |
| 2010 | 16.0°C | 10.7°C | 5.4°C | 21.5°C | -0.8°C | 100 mm | 81% | 2.1 m/s | 2.9 |
| 2009 | 16.4°C | 10.3°C | 4.3°C | 20.8°C | 0.6°C | 20 mm | 74% | 2.2 m/s | 3.3 |
| 2008 | 16.0°C | 9.9°C | 3.9°C | 20.7°C | -1.0°C | 35 mm | 73% | 2.1 m/s | 3.3 |
| 2007 | 14.8°C | 8.8°C | 2.8°C | 20.6°C | -2.8°C | 8 mm | 77% | 1.9 m/s | 3.5 |
| 2006 | 16.3°C | 10.4°C | 4.6°C | 21.0°C | 0.1°C | 65 mm | 74% | 1.8 m/s | 3.3 |
| 2005 | 15.9°C | 10.1°C | 4.4°C | 19.2°C | -1.4°C | 32 mm | 82% | 1.8 m/s | 3.4 |
| 2004 | 16.8°C | 10.3°C | 3.8°C | 22.7°C | -0.5°C | 42 mm | 70% | 1.9 m/s | 3.4 |
| 2003 | 16.7°C | 10.5°C | 4.2°C | 20.5°C | -1.3°C | 40 mm | 73% | 1.9 m/s | 3.4 |
| 2002 | 17.9°C | 10.3°C | 2.7°C | 21.5°C | -0.4°C | 2 mm | 55% | 1.9 m/s | 3.8 |
| 2001 | 16.5°C | 10.6°C | 4.8°C | 21.3°C | 1.5°C | 87 mm | 77% | 1.7 m/s | 3.1 |
| 2000 | 16.6°C | 10.1°C | 3.6°C | 21.0°C | -0.9°C | 41 mm | 74% | 1.9 m/s | 3.4 |
| 1999 | 16.9°C | 11.3°C | 5.6°C | 19.5°C | 1.1°C | 35 mm | 79% | 2 m/s | 3.2 |
| 1998 | 14.8°C | 9.7°C | 4.6°C | 21.2°C | -1.5°C | 161 mm | 86% | 2.1 m/s | 2.7 |
| 1997 | 16.1°C | 9.8°C | 3.6°C | 19.3°C | -0.5°C | 15 mm | 75% | 2 m/s | 3.4 |
| 1996 | 14.6°C | 9.2°C | 3.7°C | 20.5°C | -1.3°C | 66 mm | 78% | 2 m/s | 3 |
| 1995 | 14.6°C | 8.7°C | 2.7°C | 17.3°C | 0.0°C | 16 mm | 71% | 2 m/s | 3.3 |
| 1994 | 17.6°C | 10.5°C | 3.4°C | 21.9°C | 0.0°C | 11 mm | 65% | 1.9 m/s | 3.7 |
| 1993 | 17.1°C | 11.9°C | 6.7°C | 20.8°C | 1.7°C | 96 mm | 83% | 1.8 m/s | 3 |
| 1992 | 17.1°C | 10.4°C | 3.7°C | 22.4°C | -0.6°C | 30 mm | 68% | 1.9 m/s | 3.6 |
| 1991 | 13.7°C | 8.2°C | 2.8°C | 18.7°C | -1.1°C | 57 mm | 82% | 1.8 m/s | 3.2 |
| 1990 | 14.1°C | 9.3°C | 4.6°C | 22.8°C | 0.0°C | 83 mm | 86% | 2.2 m/s | 3 |
| 1989 ❄️ | 12.8°C | 8.0°C | 3.3°C | 19.5°C | -1.5°C | 79 mm | 86% | 2 m/s | 3 |
| 1988 | 16.4°C | 10.7°C | 4.9°C | 19.1°C | -0.1°C | 67 mm | 80% | 2 m/s | 3.2 |
| 1987 | 15.9°C | 9.4°C | 3.0°C | 19.3°C | -1.7°C | 27 mm | 73% | 2 m/s | 3.6 |
| 1986 | 15.3°C | 9.3°C | 3.4°C | 21.2°C | -2.6°C | 137 mm | 76% | 2.2 m/s | 3.1 |
| 1985 | 16.4°C | 10.1°C | 3.8°C | 23.2°C | -0.6°C | 35 mm | 70% | 2.1 m/s | 3.4 |
| 1984 🌧️ | 13.6°C | 8.7°C | 3.9°C | 19.1°C | -0.5°C | 170 mm | 80% | 2.1 m/s | 2.3 |
| 1983 | 14.0°C | 8.2°C | 2.5°C | 16.8°C | -1.8°C | 52 mm | 84% | 2.1 m/s | — |
| 1982 | 15.9°C | 9.0°C | 2.2°C | 18.2°C | -2.2°C | 15 mm | 68% | 1.9 m/s | — |
| 1981 | 14.9°C | 9.0°C | 3.2°C | 19.6°C | -0.6°C | 64 mm | 80% | 2.1 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 16°C with lows near 4°C (mean 10°C), based on 45 years of NASA POWER data.
July averages 47 mm of rainfall in Narrabri, about average for rainfall. The wettest on record was 170 mm in 1984.
The hottest July reached 24.3°C in 2018. The coldest dipped to -2.8°C in 2007.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.3°C. Daytime highs moved from 15°C to 16.3°C and overnight lows from 3.1°C to 4.4°C over the same span.
July is one of the cooler months of the year in Narrabri and about average for rainfall, so plan for around 16°C daytime highs and 4°C at night.
Yes — July is the coldest month of the year in Narrabri, averaging 10°C.
For July in Narrabri, pack warm layers and a jacket for chilly mornings, with typical highs of 16°C and lows of 4°C.
Relative humidity in July averages 75% — quite humid.
Average wind speed in July is 2 m/s. The windiest July on record averaged 2.4 m/s (2025).
The wettest July on record was 1984 with 170 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 Narrabri 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.
