January is one of the warmer months of the year in Penrith, with average highs near 30.2°C and lows around 16.3°C (mean 23.3°C). It is about average for rainfall, averaging 98 mm of rainfall and 66% relative humidity across the period.
January is one of the warmer months of the year in Penrith. Across 45 years of records, the warmest January in Penrith was 2019 — when the month averaged 26.6°C — while the coldest was 1989 at 19.1°C. Typical January days reach 30.2°C with nights near 16.3°C. The long-term trend is warming, about 0.3°C per decade.
January is about average for rainfall in Penrith, averaging 98 mm of rainfall. The wettest January on record was 2016 with 263 mm, while the driest was 1985 at 12 mm.
Relative humidity in Penrith during January averages 66%. The most humid January was 2022 at 80%, and the least humid was 1985 at 52%.
January receives about 6.3 kWh/m²/day of solar energy in Penrith. The sunniest January was 1985 at 7.5 kWh/m²/day, and the cloudiest was 1996 at 5.3.
Average wind speed in Penrith during January is 1.4 m/s. The windiest Januarys were 2003 and 2013 at 1.6 m/s, while the calmest were 1992, 1993 and 2019 at 1.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.6°C | 22.8°C | 23.7°C | 24.0°C | 23.0°C | +0.4°C |
| Avg High | 29.7°C | 29.6°C | 31.1°C | 31.1°C | 29.2°C | -0.5°C |
| Avg Low | 15.6°C | 15.9°C | 16.4°C | 17.0°C | 16.8°C | +1.2°C |
| Avg Rain | 105 mm | 104 mm | 73 mm | 101 mm | 117 mm | +12 mm |
January temperatures in Penrith have fallen by about 0.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 8.7°C (2012) to a record high of 45.1°C (2020).
Rainfall in January is about average for rainfall, averaging 98 mm, with a wettest year of 263 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Penrith
January is one of the best times to visit Penrith. Expect days averaging 30.2°C and nights around 16.3°C (mean 23.3°C) — warmer than Penrith's yearly average — with higher rainfall (98 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 29.2°C | 22.9°C | 16.7°C | 40.5°C | 13.0°C | 129 mm | 71% | 1.5 m/s | 5.5 |
| 2024 | 28.9°C | 23.0°C | 17.1°C | 37.7°C | 11.8°C | 117 mm | 74% | 1.4 m/s | 5.4 |
| 2023 | 28.5°C | 22.2°C | 15.9°C | 36.2°C | 10.9°C | 164 mm | 72% | 1.4 m/s | 6.1 |
| 2022 | 26.8°C | 22.1°C | 17.4°C | 31.3°C | 13.5°C | 149 mm | 80% | 1.3 m/s | 5.4 |
| 2021 | 29.2°C | 22.5°C | 15.9°C | 39.4°C | 11.9°C | 70 mm | 64% | 1.3 m/s | 6.2 |
| 2020 | 32.6°C | 25.3°C | 18.0°C | 45.1°C | 14.5°C | 73 mm | 65% | 1.5 m/s | 5.9 |
| 2019 🔥 | 34.1°C | 26.6°C | 19.2°C | 41.8°C | 15.9°C | 72 mm | 67% | 1.2 m/s | 6.6 |
| 2018 | 33.5°C | 25.4°C | 17.4°C | 44.4°C | 11.2°C | 32 mm | 57% | 1.5 m/s | 6.7 |
| 2017 | 33.7°C | 25.9°C | 18.1°C | 43.0°C | 14.2°C | 51 mm | 62% | 1.5 m/s | 6.3 |
| 2016 🌧️ | 26.8°C | 21.3°C | 15.7°C | 37.3°C | 11.6°C | 263 mm | 78% | 1.3 m/s | 5.8 |
| 2015 | 28.9°C | 22.8°C | 16.6°C | 37.3°C | 9.2°C | 152 mm | 71% | 1.3 m/s | 6.2 |
| 2014 | 31.3°C | 23.6°C | 15.9°C | 38.7°C | 11.8°C | 29 mm | 60% | 1.4 m/s | 6.8 |
| 2013 | 32.4°C | 24.9°C | 17.3°C | 44.9°C | 13.5°C | 173 mm | 61% | 1.6 m/s | 6.4 |
| 2012 | 26.6°C | 20.9°C | 15.2°C | 34.4°C | 8.7°C | 131 mm | 74% | 1.3 m/s | 5.7 |
| 2011 | 30.9°C | 24.2°C | 17.5°C | 42.1°C | 13.6°C | 55 mm | 68% | 1.5 m/s | 5.8 |
| 2010 | 32.6°C | 24.8°C | 17.0°C | 41.3°C | 10.5°C | 49 mm | 62% | 1.4 m/s | 6.3 |
| 2009 | 33.3°C | 24.9°C | 16.5°C | 41.4°C | 13.0°C | 30 mm | 54% | 1.5 m/s | 7.3 |
| 2008 | 29.2°C | 22.9°C | 16.6°C | 38.2°C | 12.6°C | 98 mm | 70% | 1.4 m/s | 6 |
| 2007 | 31.6°C | 23.9°C | 16.2°C | 40.6°C | 12.4°C | 43 mm | 60% | 1.5 m/s | 7.2 |
| 2006 | 31.0°C | 24.3°C | 17.7°C | 43.9°C | 15.1°C | 123 mm | 69% | 1.5 m/s | 5.6 |
| 2005 | 31.2°C | 23.7°C | 16.3°C | 43.7°C | 11.5°C | 76 mm | 63% | 1.4 m/s | 6.5 |
| 2004 | 32.8°C | 24.8°C | 16.8°C | 41.1°C | 11.1°C | 60 mm | 59% | 1.4 m/s | 6.8 |
| 2003 | 31.7°C | 24.0°C | 16.3°C | 43.7°C | 12.5°C | 25 mm | 58% | 1.6 m/s | 6.7 |
| 2002 | 29.8°C | 22.8°C | 15.9°C | 36.2°C | 12.6°C | 84 mm | 62% | 1.5 m/s | 6.8 |
| 2001 | 33.2°C | 25.5°C | 17.7°C | 45.0°C | 13.2°C | 134 mm | 60% | 1.5 m/s | 6.1 |
| 2000 | 26.9°C | 20.3°C | 13.8°C | 40.4°C | 10.4°C | 53 mm | 68% | 1.3 m/s | 6.1 |
| 1999 | 30.6°C | 24.0°C | 17.4°C | 39.6°C | 15.3°C | 147 mm | 69% | 1.4 m/s | 6.4 |
| 1998 | 32.1°C | 24.7°C | 17.2°C | 43.2°C | 12.1°C | 97 mm | 64% | 1.4 m/s | 6.2 |
| 1997 | 27.6°C | 21.0°C | 14.4°C | 37.6°C | 10.3°C | 148 mm | 65% | 1.5 m/s | 6.2 |
| 1996 | 27.6°C | 21.5°C | 15.4°C | 39.3°C | 10.9°C | 137 mm | 74% | 1.3 m/s | 5.3 |
| 1995 | 26.3°C | 20.7°C | 15.2°C | 36.1°C | 10.5°C | 140 mm | 73% | 1.4 m/s | 5.6 |
| 1994 | 32.1°C | 24.2°C | 16.3°C | 38.7°C | 11.7°C | 38 mm | 55% | 1.5 m/s | 7.3 |
| 1993 | 30.2°C | 23.4°C | 16.5°C | 38.2°C | 12.7°C | 81 mm | 71% | 1.2 m/s | 5.9 |
| 1992 | 27.4°C | 20.8°C | 14.2°C | 38.1°C | 10.1°C | 89 mm | 72% | 1.2 m/s | 6.6 |
| 1991 | 32.8°C | 25.2°C | 17.7°C | 41.0°C | 11.6°C | 76 mm | 60% | 1.3 m/s | 6.3 |
| 1990 | 29.0°C | 22.0°C | 15.0°C | 42.1°C | 10.0°C | 86 mm | 67% | 1.4 m/s | 5.8 |
| 1989 ❄️ | 23.9°C | 19.1°C | 14.4°C | 30.8°C | 10.3°C | 187 mm | 78% | 1.3 m/s | 5.9 |
| 1988 | 29.4°C | 22.7°C | 16.0°C | 37.1°C | 10.8°C | 162 mm | 72% | 1.3 m/s | 6.8 |
| 1987 | 32.9°C | 24.9°C | 16.8°C | 42.0°C | 11.1°C | 50 mm | 57% | 1.3 m/s | 6.9 |
| 1986 | 26.9°C | 20.4°C | 13.8°C | 36.7°C | 9.1°C | 175 mm | 68% | 1.4 m/s | 6.6 |
| 1985 | 32.6°C | 23.7°C | 14.7°C | 40.3°C | 10.0°C | 12 mm | 52% | 1.3 m/s | 7.5 |
| 1984 | 26.5°C | 20.4°C | 14.3°C | 35.8°C | 9.0°C | 172 mm | 71% | 1.3 m/s | 5.9 |
| 1983 | 32.5°C | 24.3°C | 16.0°C | 40.6°C | 11.6°C | 30 mm | 53% | 1.5 m/s | — |
| 1982 | 31.1°C | 23.8°C | 16.5°C | 41.3°C | 13.7°C | 88 mm | 64% | 1.4 m/s | — |
| 1981 | 31.6°C | 24.5°C | 17.5°C | 38.8°C | 12.7°C | 70 mm | 67% | 1.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 30.2°C with lows near 16.3°C (mean 23.3°C), based on 45 years of NASA POWER data.
January averages 98 mm of rainfall in Penrith, about average for rainfall. The wettest on record was 263 mm in 2016.
The hottest January reached 45.1°C in 2020. The coldest dipped to 8.7°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 0.8°C — but days and nights have moved in opposite directions. Overnight lows rose from 15.8°C to 16.6°C while daytime highs eased from 30.9°C to 28.5°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Penrith and about average for rainfall, so plan for around 30.2°C daytime highs and 16.3°C at night.
Not quite — January is the 12th coolest month in Penrith, averaging 23.3°C.
For January in Penrith, pack light, breathable clothing and sun protection, with typical highs of 30.2°C and lows of 16.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 66% — moderately humid.
Average wind speed in January is 1.4 m/s. The windiest January on record averaged 1.6 m/s (2003).
The wettest January on record was 2016 with 263 mm. On average, January sees 98 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 Penrith 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.
