July is one of the cooler months of the year in Port Lincoln, with average highs near 15.1°C and lows around 9.5°C (mean 12.3°C). It is a relatively wet time of year, averaging 62 mm of rainfall and 75% relative humidity across the period.
July is one of the cooler months of the year in Port Lincoln. Across 45 years of records, the warmest Julys in Port Lincoln were 2018 and 2019 — when the month averaged 13.4°C — while the coldest was 1982 at 11°C. Typical July days reach 15.1°C with nights near 9.5°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Port Lincoln, averaging 62 mm of rainfall. The wettest July on record was 1983 with 133 mm, while the driest was 2019 at 14 mm.
Relative humidity in Port Lincoln during July averages 75%. The most humid July was 1983 at 79%, and the least humid was 2018 at 67%.
July receives about 2.5 kWh/m²/day of solar energy in Port Lincoln. The sunniest July was 1994 at 2.8 kWh/m²/day, and the cloudiest was 1984 at 1.9.
Average wind speed in Port Lincoln during July is 5.4 m/s. The windiest July was 2021 at 6.6 m/s, while the calmest was 2001 at 3.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.8°C | 12.2°C | 12.4°C | 12.6°C | 12.6°C | +0.8°C |
| Avg High | 14.4°C | 15.0°C | 15.2°C | 15.4°C | 15.5°C | +1.1°C |
| Avg Low | 9.1°C | 9.4°C | 9.7°C | 9.8°C | 9.8°C | +0.7°C |
| Avg Rain | 85 mm | 63 mm | 66 mm | 48 mm | 40 mm | -45 mm |
July temperatures in Port Lincoln have risen by about 1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 4°C (1983) to a record high of 23.2°C (2016).
Rainfall in July is a relatively wet time of year, averaging 62 mm, with a wettest year of 133 mm.
A quieter season to visit Port Lincoln
If your dates are flexible, the more temperate months of February and January tend to be the most comfortable for visiting Port Lincoln. That said, July — with days averaging 15.1°C and nights around 9.5°C (mean 12.3°C) and moderate rainfall (62 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 | 15.1°C | 12.5°C | 10.0°C | 19.0°C | 7.1°C | 58 mm | 72% | 6 m/s | 2.5 |
| 2024 | 15.7°C | 12.6°C | 9.6°C | 21.0°C | 5.3°C | 30 mm | 72% | 5.6 m/s | 2.7 |
| 2023 | 16.1°C | 13.2°C | 10.3°C | 20.5°C | 6.8°C | 17 mm | 74% | 5.2 m/s | 2.7 |
| 2022 | 15.4°C | 12.6°C | 9.8°C | 20.5°C | 7.5°C | 30 mm | 73% | 4.8 m/s | 2.4 |
| 2021 | 15.2°C | 12.5°C | 9.9°C | 18.8°C | 7.0°C | 82 mm | 74% | 6.6 m/s | 2.5 |
| 2020 | 15.4°C | 12.4°C | 9.3°C | 19.1°C | 4.9°C | 21 mm | 76% | 4.2 m/s | 2.7 |
| 2019 | 16.3°C | 13.4°C | 10.5°C | 22.1°C | 8.5°C | 14 mm | 76% | 5.3 m/s | 2.5 |
| 2018 🔥 | 16.4°C | 13.4°C | 10.3°C | 20.7°C | 6.1°C | 25 mm | 67% | 6.1 m/s | 2.6 |
| 2017 | 16.2°C | 13.3°C | 10.3°C | 21.5°C | 7.3°C | 35 mm | 70% | 5.9 m/s | 2.6 |
| 2016 | 15.2°C | 12.5°C | 9.8°C | 23.2°C | 4.6°C | 37 mm | 73% | 6 m/s | 2.4 |
| 2015 | 14.8°C | 11.9°C | 9.1°C | 17.5°C | 4.4°C | 22 mm | 72% | 5.3 m/s | 2.4 |
| 2014 | 14.8°C | 12.2°C | 9.6°C | 17.9°C | 5.9°C | 77 mm | 78% | 5.9 m/s | 2.3 |
| 2013 | 15.6°C | 12.7°C | 9.9°C | 18.6°C | 6.7°C | 84 mm | 77% | 5.6 m/s | 2.5 |
| 2012 | 14.2°C | 11.7°C | 9.1°C | 16.8°C | 5.5°C | 48 mm | 78% | 4.2 m/s | 2.4 |
| 2011 | 15.2°C | 12.6°C | 10.0°C | 21.0°C | 5.3°C | 77 mm | 76% | 5 m/s | 2.4 |
| 2010 | 14.9°C | 12.1°C | 9.2°C | 17.6°C | 4.9°C | 57 mm | 78% | 4.4 m/s | 2.6 |
| 2009 | 15.4°C | 13.0°C | 10.6°C | 18.1°C | 6.3°C | 82 mm | 77% | 5.9 m/s | 2.5 |
| 2008 | 14.8°C | 12.3°C | 9.8°C | 18.0°C | 5.2°C | 84 mm | 74% | 6.1 m/s | 2.4 |
| 2007 | 15.2°C | 12.3°C | 9.5°C | 21.2°C | 5.8°C | 53 mm | 75% | 5.5 m/s | 2.5 |
| 2006 | 14.6°C | 12.0°C | 9.3°C | 17.6°C | 5.3°C | 55 mm | 77% | 5.3 m/s | 2.3 |
| 2005 | 14.9°C | 12.2°C | 9.5°C | 19.2°C | 6.1°C | 52 mm | 78% | 4.5 m/s | 2.5 |
| 2004 | 14.4°C | 12.1°C | 9.7°C | 18.1°C | 6.3°C | 83 mm | 77% | 5.4 m/s | 2.3 |
| 2003 | 15.1°C | 12.1°C | 9.1°C | 18.8°C | 6.4°C | 48 mm | 75% | 5.5 m/s | 2.6 |
| 2002 | 16.5°C | 13.1°C | 9.7°C | 20.3°C | 4.9°C | 56 mm | 73% | 6.1 m/s | 2.6 |
| 2001 | 15.4°C | 12.7°C | 10.0°C | 20.5°C | 6.8°C | 57 mm | 79% | 3.9 m/s | 2.5 |
| 2000 | 15.5°C | 12.5°C | 9.6°C | 20.8°C | 7.0°C | 87 mm | 76% | 6 m/s | 2.5 |
| 1999 | 16.1°C | 13.1°C | 10.1°C | 20.6°C | 6.2°C | 43 mm | 74% | 4.7 m/s | 2.5 |
| 1998 | 13.9°C | 11.4°C | 8.9°C | 17.4°C | 5.7°C | 62 mm | 77% | 4.8 m/s | 2.4 |
| 1997 | 14.4°C | 11.6°C | 8.7°C | 19.0°C | 6.4°C | 30 mm | 73% | 4.2 m/s | 2.6 |
| 1996 | 14.8°C | 12.3°C | 9.7°C | 19.0°C | 7.2°C | 104 mm | 78% | 5.8 m/s | 2.4 |
| 1995 | 14.3°C | 11.9°C | 9.4°C | 16.3°C | 4.5°C | 114 mm | 78% | 6.3 m/s | 2.5 |
| 1994 | 16.3°C | 12.5°C | 8.7°C | 20.4°C | 6.5°C | 32 mm | 72% | 4.7 m/s | 2.8 |
| 1993 | 15.1°C | 12.3°C | 9.6°C | 21.3°C | 6.0°C | 50 mm | 76% | 5.6 m/s | 2.4 |
| 1992 | 15.3°C | 12.6°C | 9.9°C | 18.2°C | 7.3°C | 47 mm | 77% | 5.4 m/s | 2.7 |
| 1991 | 15.0°C | 12.3°C | 9.7°C | 18.0°C | 7.1°C | 52 mm | 77% | 4.8 m/s | 2.5 |
| 1990 | 14.4°C | 12.0°C | 9.6°C | 19.8°C | 7.6°C | 101 mm | 77% | 6 m/s | 2.6 |
| 1989 | 13.6°C | 11.1°C | 8.6°C | 17.3°C | 4.5°C | 122 mm | 79% | 5.4 m/s | 2.5 |
| 1988 | 15.3°C | 12.7°C | 10.0°C | 17.9°C | 6.4°C | 71 mm | 75% | 5.8 m/s | 2.5 |
| 1987 | 14.9°C | 12.0°C | 9.1°C | 19.8°C | 6.1°C | 84 mm | 76% | 5.3 m/s | 2.5 |
| 1986 | 14.0°C | 11.5°C | 9.0°C | 17.1°C | 4.5°C | 99 mm | 77% | 5.5 m/s | 2.4 |
| 1985 | 15.4°C | 12.8°C | 10.2°C | 20.2°C | 6.6°C | 36 mm | 71% | 5 m/s | 2.6 |
| 1984 | 13.8°C | 11.4°C | 9.1°C | 17.4°C | 6.3°C | 104 mm | 78% | 5.2 m/s | 1.9 |
| 1983 🌧️ | 13.9°C | 11.3°C | 8.7°C | 16.9°C | 4.0°C | 133 mm | 79% | 5.8 m/s | — |
| 1982 ❄️ | 14.1°C | 11.0°C | 8.0°C | 17.6°C | 4.6°C | 42 mm | 75% | 4.4 m/s | — |
| 1981 | 14.9°C | 12.0°C | 9.1°C | 19.0°C | 5.7°C | 78 mm | 76% | 6 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 15.1°C with lows near 9.5°C (mean 12.3°C), based on 45 years of NASA POWER data.
July averages 62 mm of rainfall in Port Lincoln, a relatively wet time of year. The wettest on record was 133 mm in 1983.
The hottest July reached 23.2°C in 2016. The coldest dipped to 4°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1°C. Daytime highs moved from 14.4°C to 15.5°C and overnight lows from 9°C to 9.9°C over the same span.
July is one of the cooler months of the year in Port Lincoln and a relatively wet time of year, so plan for around 15.1°C daytime highs and 9.5°C at night.
Yes — July is the coldest month of the year in Port Lincoln, averaging 12.3°C.
For July in Port Lincoln, pack light layers you can adjust through the day, with typical highs of 15.1°C and lows of 9.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 75% — quite humid.
Average wind speed in July is 5.4 m/s. The windiest July on record averaged 6.6 m/s (2021).
The wettest July on record was 1983 with 133 mm. On average, July sees 62 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 Port Lincoln 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.
