July is one of the cooler months of the year in Carnarvon, with average highs near 22.4°C and lows around 14°C (mean 18.2°C). It is a relatively wet time of year, averaging 35 mm of rainfall and 65% relative humidity across the period.
July is one of the cooler months of the year in Carnarvon. Across 45 years of records, the warmest July in Carnarvon was 1987 — when the month averaged 19.7°C — while the coldest was 1986 at 16.8°C. Typical July days reach 22.4°C with nights near 14°C. The long-term July temperature trend is broadly flat.
July is a relatively wet time of year in Carnarvon, averaging 35 mm of rainfall. The wettest July on record was 1998 with 211 mm, while the driest was 1982 at 1 mm.
Relative humidity in Carnarvon during July averages 65%. The most humid Julys were 1996 and 2011 at 72%, and the least humid was 2010 at 57%.
July receives about 4 kWh/m²/day of solar energy in Carnarvon. The sunniest July was 1994 at 4.5 kWh/m²/day, and the cloudiest was 1984 at 3.2.
Average wind speed in Carnarvon during July is 4.4 m/s. The windiest July was 1988 at 4.9 m/s, while the calmest was 2011 at 3.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 18.4°C | 18.4°C | 17.9°C | 17.9°C | -0.2°C |
| Avg High | 22.3°C | 22.4°C | 22.5°C | 22.3°C | 22.5°C | +0.2°C |
| Avg Low | 14.0°C | 14.5°C | 14.3°C | 13.6°C | 13.4°C | -0.6°C |
| Avg Rain | 29 mm | 57 mm | 39 mm | 22 mm | 20 mm | -9 mm |
July temperatures in Carnarvon have fallen by about 0.3°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 6.6°C (1998) to a record high of 29.8°C (1988).
Rainfall in July is a relatively wet time of year, averaging 35 mm, with a wettest year of 211 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows fell 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Carnarvon
If your dates are flexible, the more temperate months of October and May tend to be the most comfortable for visiting Carnarvon. That said, July — with days averaging 22.4°C and nights around 14°C (mean 18.2°C) and moderate rainfall (35 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 | 21.6°C | 17.0°C | 12.5°C | 25.3°C | 6.9°C | 16 mm | 61% | 4.8 m/s | 4.2 |
| 2024 | 22.6°C | 18.1°C | 13.6°C | 26.5°C | 9.7°C | 50 mm | 68% | 4.3 m/s | 4.2 |
| 2023 | 22.2°C | 17.1°C | 11.9°C | 26.6°C | 8.8°C | 6 mm | 59% | 4.5 m/s | 4.4 |
| 2022 | 22.4°C | 17.7°C | 13.0°C | 25.8°C | 9.1°C | 14 mm | 64% | 3.7 m/s | 4 |
| 2021 | 21.9°C | 18.5°C | 15.2°C | 26.6°C | 10.8°C | 19 mm | 69% | 4.2 m/s | 3.8 |
| 2020 | 24.3°C | 19.2°C | 14.1°C | 29.1°C | 9.9°C | 12 mm | 59% | 4.5 m/s | 4.4 |
| 2019 | 22.6°C | 17.7°C | 12.8°C | 26.0°C | 9.6°C | 21 mm | 66% | 4.4 m/s | 4.2 |
| 2018 | 21.8°C | 17.8°C | 13.8°C | 25.0°C | 8.1°C | 16 mm | 69% | 4 m/s | 4.3 |
| 2017 | 21.8°C | 17.7°C | 13.6°C | 25.3°C | 9.4°C | 6 mm | 67% | 4.2 m/s | 4.4 |
| 2016 | 21.7°C | 17.7°C | 13.7°C | 26.7°C | 7.9°C | 50 mm | 69% | 4.7 m/s | 3.5 |
| 2015 | 23.4°C | 18.8°C | 14.1°C | 28.4°C | 9.1°C | 32 mm | 65% | 4.5 m/s | 3.6 |
| 2014 | 22.5°C | 18.2°C | 13.9°C | 26.6°C | 9.6°C | 7 mm | 63% | 4 m/s | 4.1 |
| 2013 | 22.0°C | 17.8°C | 13.7°C | 25.1°C | 7.9°C | 8 mm | 66% | 4.5 m/s | 4.3 |
| 2012 | 22.9°C | 17.6°C | 12.3°C | 27.3°C | 8.4°C | 15 mm | 61% | 4.4 m/s | 4.2 |
| 2011 | 22.1°C | 18.5°C | 14.9°C | 25.3°C | 9.7°C | 55 mm | 72% | 3.6 m/s | 3.8 |
| 2010 | 22.2°C | 17.6°C | 13.0°C | 25.5°C | 8.0°C | 6 mm | 57% | 4.8 m/s | 4.2 |
| 2009 | 22.0°C | 18.0°C | 14.1°C | 25.9°C | 9.2°C | 16 mm | 64% | 4.5 m/s | 4.1 |
| 2008 | 22.2°C | 18.1°C | 14.1°C | 26.6°C | 8.0°C | 29 mm | 68% | 3.9 m/s | 4 |
| 2007 | 22.8°C | 19.1°C | 15.4°C | 27.1°C | 10.5°C | 87 mm | 67% | 4.2 m/s | 3.5 |
| 2006 | 22.5°C | 17.8°C | 13.2°C | 27.1°C | 9.6°C | 4 mm | 58% | 4.4 m/s | 4.3 |
| 2005 | 22.2°C | 17.7°C | 13.1°C | 26.1°C | 9.5°C | 6 mm | 68% | 4.2 m/s | 4.3 |
| 2004 | 22.0°C | 18.2°C | 14.4°C | 25.3°C | 10.2°C | 165 mm | 69% | 4.2 m/s | 3.4 |
| 2003 | 21.9°C | 17.9°C | 13.8°C | 26.4°C | 8.6°C | 7 mm | 67% | 4.6 m/s | 4.3 |
| 2002 | 23.3°C | 19.2°C | 15.0°C | 26.6°C | 9.8°C | 23 mm | 64% | 4.3 m/s | 4 |
| 2001 | 23.9°C | 19.3°C | 14.8°C | 27.5°C | 10.6°C | 14 mm | 59% | 4.8 m/s | 4.2 |
| 2000 | 22.1°C | 18.7°C | 15.3°C | 26.7°C | 11.2°C | 42 mm | 66% | 4.1 m/s | 3.9 |
| 1999 | 23.3°C | 19.0°C | 14.7°C | 27.0°C | 10.7°C | 25 mm | 61% | 4.4 m/s | 4 |
| 1998 🌧️ | 21.2°C | 17.5°C | 13.9°C | 24.7°C | 6.6°C | 211 mm | 70% | 4.8 m/s | 3.6 |
| 1997 | 22.2°C | 17.7°C | 13.2°C | 26.0°C | 7.8°C | 25 mm | 62% | 4.7 m/s | 4 |
| 1996 | 22.8°C | 19.4°C | 16.0°C | 25.7°C | 9.3°C | 158 mm | 72% | 4.8 m/s | 3.3 |
| 1995 | 22.1°C | 18.5°C | 14.9°C | 25.0°C | 9.6°C | 39 mm | 65% | 4.4 m/s | 4 |
| 1994 | 23.6°C | 18.9°C | 14.2°C | 27.8°C | 10.7°C | 8 mm | 61% | 4.1 m/s | 4.5 |
| 1993 | 21.7°C | 17.8°C | 13.9°C | 23.9°C | 9.4°C | 7 mm | 62% | 4.8 m/s | 4.1 |
| 1992 | 23.5°C | 18.9°C | 14.3°C | 27.6°C | 9.0°C | 1 mm | 66% | 3.8 m/s | 4.3 |
| 1991 | 22.1°C | 18.8°C | 15.6°C | 26.0°C | 8.7°C | 76 mm | 69% | 4.2 m/s | 3.9 |
| 1990 | 21.2°C | 17.5°C | 13.8°C | 26.0°C | 8.4°C | 16 mm | 60% | 4.8 m/s | 3.8 |
| 1989 | 21.3°C | 17.5°C | 13.7°C | 23.6°C | 9.2°C | 17 mm | 62% | 4.7 m/s | 3.9 |
| 1988 | 23.4°C | 19.3°C | 15.2°C | 29.8°C | 10.8°C | 39 mm | 63% | 4.9 m/s | 4 |
| 1987 🔥 | 23.6°C | 19.7°C | 15.9°C | 26.4°C | 10.5°C | 13 mm | 66% | 4.1 m/s | 3.8 |
| 1986 ❄️ | 20.7°C | 16.8°C | 12.9°C | 22.8°C | 7.9°C | 36 mm | 63% | 4.4 m/s | 4.2 |
| 1985 | 23.0°C | 19.1°C | 15.3°C | 26.8°C | 10.6°C | 45 mm | 64% | 4.1 m/s | 3.7 |
| 1984 | 21.9°C | 18.0°C | 14.1°C | 25.9°C | 9.9°C | 46 mm | 66% | 4.4 m/s | 3.2 |
| 1983 | 22.3°C | 17.3°C | 12.2°C | 25.8°C | 6.8°C | 38 mm | 61% | 4.4 m/s | — |
| 1982 | 22.3°C | 17.6°C | 13.0°C | 27.1°C | 8.9°C | 1 mm | 60% | 3.9 m/s | — |
| 1981 | 21.9°C | 18.0°C | 14.1°C | 24.2°C | 9.4°C | 25 mm | 64% | 4.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 22.4°C with lows near 14°C (mean 18.2°C), based on 45 years of NASA POWER data.
July averages 35 mm of rainfall in Carnarvon, a relatively wet time of year. The wettest on record was 211 mm in 1998.
The hottest July reached 29.8°C in 1988. The coldest dipped to 6.6°C in 1998.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have fallen by about 0.3°C. Daytime highs moved from 22.3°C to 22.1°C and overnight lows from 13.7°C to 13.2°C over the same span.
July is one of the cooler months of the year in Carnarvon and a relatively wet time of year, so plan for around 22.4°C daytime highs and 14°C at night.
Yes — July is the coldest month of the year in Carnarvon, averaging 18.2°C.
For July in Carnarvon, pack light layers you can adjust through the day, with typical highs of 22.4°C and lows of 14°C.
Relative humidity in July averages 65% — moderately humid.
Average wind speed in July is 4.4 m/s. The windiest July on record averaged 4.9 m/s (1988).
The wettest July on record was 1998 with 211 mm. On average, July sees 35 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 Carnarvon 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.
