January is one of the warmer months of the year in Port Pirie, with average highs near 32.9°C and lows around 17.5°C (mean 25.2°C). It is about average for rainfall, averaging 21 mm of rainfall and 40% relative humidity across the period.
January is one of the warmer months of the year in Port Pirie. Across 45 years of records, the warmest January in Port Pirie was 2001 — when the month averaged 30°C — while the coldest was 1992 at 21.1°C. Typical January days reach 32.9°C with nights near 17.5°C. The long-term trend is warming, about 0.6°C per decade.
January is about average for rainfall in Port Pirie, averaging 21 mm of rainfall. The wettest January on record was 2007 with 101 mm, while the driest were 2017, 2018 and 2019 at 0 mm.
Relative humidity in Port Pirie during January averages 40%. The most humid January was 1993 at 56%, and the least humid was 2001 at 31%.
January receives about 7.9 kWh/m²/day of solar energy in Port Pirie. The sunniest January was 2009 at 9 kWh/m²/day, and the cloudiest was 2022 at 7.2.
Average wind speed in Port Pirie during January is 4 m/s. The windiest January was 1989 at 4.4 m/s, while the calmest were 1995, 2011 and 2024 at 3.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.4°C | 24.2°C | 25.5°C | 26.3°C | 25.7°C | +1.3°C |
| Avg High | 32.3°C | 31.8°C | 33.2°C | 33.8°C | 33.1°C | +0.8°C |
| Avg Low | 16.4°C | 16.6°C | 17.8°C | 18.7°C | 18.3°C | +1.9°C |
| Avg Rain | 14 mm | 29 mm | 20 mm | 20 mm | 21 mm | +7 mm |
January temperatures in Port Pirie have risen by about 0.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 7.6°C (1983) to a record high of 46.2°C (2019).
Rainfall in January is about average for rainfall, averaging 21 mm, with a wettest year of 101 mm.
A good time to visit Port Pirie
January is a good time to visit Port Pirie, with days averaging 32.9°C and nights around 17.5°C (mean 25.2°C, warmer than Port Pirie's yearly average) and low rainfall. March and December are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 34.6°C | 26.5°C | 18.4°C | 41.4°C | 13.3°C | 2 mm | 34% | 3.9 m/s | 8.2 |
| 2024 | 33.5°C | 26.4°C | 19.2°C | 43.2°C | 11.7°C | 25 mm | 44% | 3.6 m/s | 7.6 |
| 2023 | 33.8°C | 26.2°C | 18.5°C | 41.5°C | 11.4°C | 24 mm | 40% | 3.7 m/s | 7.6 |
| 2022 | 32.2°C | 25.6°C | 19.1°C | 39.5°C | 12.7°C | 27 mm | 51% | 4 m/s | 7.2 |
| 2021 | 31.8°C | 24.4°C | 16.9°C | 42.3°C | 10.6°C | 39 mm | 44% | 4 m/s | 8.1 |
| 2020 | 32.4°C | 24.9°C | 17.4°C | 43.0°C | 12.4°C | 6 mm | 39% | 4.2 m/s | 7.8 |
| 2019 | 36.6°C | 28.5°C | 20.5°C | 46.2°C | 13.4°C | 0 mm | 32% | 3.9 m/s | 8.1 |
| 2018 | 35.1°C | 27.5°C | 19.8°C | 43.5°C | 12.7°C | 0 mm | 34% | 4 m/s | 7.6 |
| 2017 | 34.5°C | 26.9°C | 19.2°C | 41.7°C | 13.1°C | 0 mm | 39% | 3.8 m/s | 7.8 |
| 2016 | 32.7°C | 25.6°C | 18.5°C | 41.5°C | 11.8°C | 32 mm | 43% | 3.9 m/s | 7.5 |
| 2015 | 30.9°C | 24.0°C | 17.0°C | 42.1°C | 10.9°C | 75 mm | 52% | 3.7 m/s | 7.3 |
| 2014 | 35.3°C | 27.4°C | 19.6°C | 43.4°C | 10.9°C | 16 mm | 34% | 3.9 m/s | 7.8 |
| 2013 | 33.9°C | 25.6°C | 17.3°C | 44.5°C | 11.3°C | 2 mm | 35% | 4.2 m/s | 8.4 |
| 2012 | 31.8°C | 24.9°C | 18.0°C | 40.9°C | 10.2°C | 48 mm | 45% | 3.9 m/s | 7.6 |
| 2011 | 33.9°C | 26.5°C | 19.1°C | 43.6°C | 12.6°C | 12 mm | 42% | 3.6 m/s | 8 |
| 2010 | 33.7°C | 26.0°C | 18.3°C | 42.5°C | 11.2°C | 15 mm | 34% | 4 m/s | 8.4 |
| 2009 | 34.5°C | 26.2°C | 17.8°C | 43.9°C | 9.3°C | 14 mm | 34% | 3.9 m/s | 9 |
| 2008 | 34.4°C | 26.3°C | 18.2°C | 41.3°C | 12.6°C | 7 mm | 37% | 4 m/s | 8.6 |
| 2007 🌧️ | 31.8°C | 24.5°C | 17.2°C | 40.3°C | 10.5°C | 101 mm | 49% | 4.1 m/s | 7.6 |
| 2006 | 35.9°C | 28.4°C | 21.0°C | 44.0°C | 14.7°C | 10 mm | 39% | 4 m/s | 7.6 |
| 2005 | 32.2°C | 24.4°C | 16.6°C | 41.7°C | 9.7°C | 23 mm | 42% | 4.1 m/s | 7.6 |
| 2004 | 28.7°C | 21.8°C | 14.8°C | 42.1°C | 10.2°C | 10 mm | 48% | 4.1 m/s | 8.3 |
| 2003 | 34.5°C | 26.2°C | 17.9°C | 44.5°C | 10.8°C | 8 mm | 32% | 4.3 m/s | 8 |
| 2002 | 30.6°C | 23.0°C | 15.5°C | 40.4°C | 9.4°C | 16 mm | 41% | 3.9 m/s | 7.5 |
| 2001 🔥 | 37.8°C | 30.0°C | 22.3°C | 45.3°C | 14.8°C | 12 mm | 31% | 4 m/s | 8.1 |
| 2000 | 32.1°C | 24.6°C | 17.1°C | 42.7°C | 8.6°C | 1 mm | 36% | 4.2 m/s | 8.2 |
| 1999 | 35.6°C | 27.6°C | 19.6°C | 41.9°C | 12.0°C | 16 mm | 37% | 3.9 m/s | 8 |
| 1998 | 32.1°C | 24.5°C | 16.8°C | 42.6°C | 11.0°C | 12 mm | 44% | 4 m/s | 8 |
| 1997 | 32.6°C | 24.8°C | 17.1°C | 38.6°C | 11.1°C | 48 mm | 40% | 4 m/s | 7.8 |
| 1996 | 30.7°C | 22.7°C | 14.7°C | 43.3°C | 10.7°C | 4 mm | 42% | 4.3 m/s | 8.3 |
| 1995 | 32.5°C | 25.1°C | 17.7°C | 40.0°C | 11.2°C | 73 mm | 44% | 3.6 m/s | 7.5 |
| 1994 | 29.9°C | 22.3°C | 14.7°C | 41.8°C | 10.6°C | 5 mm | 46% | 4.3 m/s | 8.2 |
| 1993 | 30.8°C | 23.5°C | 16.3°C | 38.4°C | 9.6°C | 79 mm | 56% | 3.7 m/s | 7.5 |
| 1992 ❄️ | 28.4°C | 21.1°C | 13.7°C | 39.8°C | 8.2°C | 2 mm | 46% | 4.2 m/s | 7.9 |
| 1991 | 33.3°C | 25.8°C | 18.4°C | 42.5°C | 12.1°C | 26 mm | 41% | 4 m/s | 7.9 |
| 1990 | 32.4°C | 24.7°C | 17.1°C | 44.1°C | 10.9°C | 27 mm | 42% | 4.1 m/s | 7.6 |
| 1989 | 31.8°C | 23.9°C | 16.1°C | 38.7°C | 10.0°C | 1 mm | 38% | 4.4 m/s | 8.4 |
| 1988 | 34.1°C | 25.7°C | 17.4°C | 43.8°C | 11.1°C | 3 mm | 35% | 4.2 m/s | 8 |
| 1987 | 29.7°C | 21.9°C | 14.1°C | 38.4°C | 10.2°C | 38 mm | 44% | 3.9 m/s | 7.8 |
| 1986 | 31.2°C | 22.8°C | 14.4°C | 41.4°C | 8.7°C | 1 mm | 36% | 4.1 m/s | 8.7 |
| 1985 | 32.4°C | 24.3°C | 16.2°C | 41.8°C | 10.6°C | 8 mm | 37% | 4.1 m/s | 7.7 |
| 1984 | 30.1°C | 22.9°C | 15.7°C | 40.2°C | 10.8°C | 20 mm | 45% | 4.3 m/s | 7.8 |
| 1983 | 31.4°C | 23.4°C | 15.3°C | 42.7°C | 7.6°C | 3 mm | 36% | 4.1 m/s | — |
| 1982 | 34.1°C | 26.2°C | 18.4°C | 44.9°C | 11.9°C | 7 mm | 36% | 4.2 m/s | — |
| 1981 | 36.0°C | 28.1°C | 20.2°C | 42.8°C | 13.3°C | 42 mm | 35% | 4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 32.9°C with lows near 17.5°C (mean 25.2°C), based on 45 years of NASA POWER data.
January averages 21 mm of rainfall in Port Pirie, about average for rainfall. The wettest on record was 101 mm in 2007.
The hottest January reached 46.2°C in 2019. The coldest dipped to 7.6°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.8°C. Daytime highs moved from 32.8°C to 33.2°C and overnight lows from 17.2°C to 18.4°C over the same span.
January is one of the warmer months of the year in Port Pirie and about average for rainfall, so plan for around 32.9°C daytime highs and 17.5°C at night.
Not quite — January is the 12th coolest month in Port Pirie, averaging 25.2°C.
For January in Port Pirie, pack light, breathable clothing and sun protection, with typical highs of 32.9°C and lows of 17.5°C.
Relative humidity in January averages 40% — relatively dry.
Average wind speed in January is 4 m/s. The windiest January on record averaged 4.4 m/s (1989).
The wettest January on record was 2007 with 101 mm. On average, January sees 21 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 Pirie behaves each January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
