January is one of the warmer months of the year in Manjimup, with average highs near 30.9°C and lows around 13.6°C (mean 22.3°C). It is one of the drier months, averaging 17 mm of rainfall and 54% relative humidity across the period.
January is one of the warmer months of the year in Manjimup. Across 45 years of records, the warmest January in Manjimup was 2025 — when the month averaged 24.3°C — while the coldest was 1982 at 19.6°C. Typical January days reach 30.9°C with nights near 13.6°C. The long-term trend is warming, about 0.3°C per decade.
January is one of the drier months in Manjimup, averaging 17 mm of rainfall. The wettest January on record was 1982 with 125 mm, while the driest was 2022 at 1 mm.
Relative humidity in Manjimup during January averages 54%. The most humid January was 1982 at 64%, and the least humid was 1986 at 48%.
January receives about 7.5 kWh/m²/day of solar energy in Manjimup. The sunniest January was 2017 at 8.2 kWh/m²/day, and the cloudiest were 1989 and 2016 at 6.4.
Average wind speed in Manjimup during January is 4 m/s. The windiest Januarys were 1999 and 2021 at 4.5 m/s, while the calmest was 1982 at 3.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 21.8°C | 22.1°C | 21.8°C | 22.7°C | 23.3°C | +1.5°C |
| Avg High | 30.5°C | 30.8°C | 30.2°C | 31.3°C | 32.1°C | +1.6°C |
| Avg Low | 13.1°C | 13.4°C | 13.5°C | 14.1°C | 14.5°C | +1.4°C |
| Avg Rain | 25 mm | 8 mm | 17 mm | 26 mm | 6 mm | -19 mm |
January temperatures in Manjimup have risen by about 1.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 5.9°C (2006) to a record high of 45.5°C (1991).
Rainfall in January is one of the drier months, averaging 17 mm, with a wettest year of 125 mm.
One of the best times to visit Manjimup
January is one of the best times to visit Manjimup. Expect days averaging 30.9°C and nights around 13.6°C (mean 22.3°C) — warmer than Manjimup's yearly average — with low rainfall (17 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 🔥 | 33.1°C | 24.3°C | 15.5°C | 42.2°C | 10.4°C | 6 mm | 51% | 3.6 m/s | 7.4 |
| 2024 | 32.6°C | 23.7°C | 14.7°C | 41.4°C | 10.4°C | 7 mm | 54% | 4.3 m/s | 7.6 |
| 2023 | 31.8°C | 22.6°C | 13.4°C | 40.0°C | 9.8°C | 2 mm | 50% | 4.2 m/s | 7.9 |
| 2022 | 32.9°C | 24.1°C | 15.3°C | 41.5°C | 11.4°C | 1 mm | 49% | 4.1 m/s | 7.6 |
| 2021 | 31.8°C | 23.1°C | 14.5°C | 41.4°C | 10.9°C | 3 mm | 50% | 4.5 m/s | 7.7 |
| 2020 | 30.1°C | 21.7°C | 13.4°C | 40.0°C | 8.7°C | 15 mm | 54% | 3.8 m/s | 7.6 |
| 2019 | 30.6°C | 21.8°C | 12.9°C | 41.7°C | 9.5°C | 13 mm | 54% | 3.8 m/s | 7.6 |
| 2018 | 30.1°C | 21.7°C | 13.2°C | 39.0°C | 9.6°C | 34 mm | 57% | 4 m/s | 7.5 |
| 2017 | 31.4°C | 22.1°C | 12.7°C | 41.2°C | 9.1°C | 4 mm | 51% | 3.8 m/s | 8.2 |
| 2016 | 30.2°C | 22.7°C | 15.3°C | 38.4°C | 10.8°C | 81 mm | 58% | 4.1 m/s | 6.4 |
| 2015 | 32.5°C | 23.3°C | 14.2°C | 41.6°C | 10.6°C | 7 mm | 51% | 4 m/s | 8 |
| 2014 | 32.0°C | 23.1°C | 14.2°C | 42.2°C | 9.2°C | 3 mm | 53% | 3.8 m/s | 7.8 |
| 2013 | 31.1°C | 23.0°C | 14.9°C | 41.5°C | 9.4°C | 15 mm | 54% | 4 m/s | 7.5 |
| 2012 | 31.2°C | 23.3°C | 15.3°C | 39.6°C | 10.5°C | 14 mm | 54% | 4.2 m/s | 7.1 |
| 2011 | 31.2°C | 22.7°C | 14.3°C | 37.9°C | 10.9°C | 85 mm | 57% | 3.9 m/s | 7.3 |
| 2010 | 32.2°C | 22.9°C | 13.5°C | 41.1°C | 10.1°C | 3 mm | 52% | 4.2 m/s | 7.7 |
| 2009 | 31.1°C | 22.6°C | 14.2°C | 41.7°C | 10.8°C | 5 mm | 59% | 3.8 m/s | 7.5 |
| 2008 | 31.1°C | 22.4°C | 13.7°C | 39.7°C | 9.6°C | 4 mm | 56% | 4.3 m/s | 7.2 |
| 2007 | 29.3°C | 21.5°C | 13.7°C | 40.7°C | 8.2°C | 25 mm | 57% | 3.9 m/s | 7.1 |
| 2006 | 28.1°C | 20.1°C | 12.2°C | 36.3°C | 5.9°C | 35 mm | 62% | 4 m/s | 6.5 |
| 2005 | 30.4°C | 21.8°C | 13.1°C | 39.1°C | 10.5°C | 3 mm | 54% | 3.8 m/s | 8 |
| 2004 | 30.5°C | 22.1°C | 13.8°C | 39.2°C | 9.5°C | 17 mm | 57% | 4.3 m/s | 7.2 |
| 2003 | 30.9°C | 22.0°C | 13.2°C | 40.7°C | 8.0°C | 6 mm | 50% | 4.1 m/s | 7.9 |
| 2002 | 29.8°C | 21.3°C | 12.8°C | 35.7°C | 7.1°C | 7 mm | 55% | 4 m/s | 7.5 |
| 2001 | 31.6°C | 22.9°C | 14.2°C | 39.1°C | 8.8°C | 7 mm | 56% | 3.8 m/s | 7 |
| 2000 | 28.9°C | 21.4°C | 13.9°C | 36.1°C | 9.6°C | 64 mm | 61% | 4 m/s | 7 |
| 1999 | 30.4°C | 22.0°C | 13.5°C | 40.7°C | 8.1°C | 6 mm | 57% | 4.5 m/s | 7.2 |
| 1998 | 32.2°C | 23.0°C | 13.9°C | 42.1°C | 10.1°C | 7 mm | 51% | 3.9 m/s | 8.1 |
| 1997 | 31.7°C | 22.7°C | 13.7°C | 40.0°C | 10.2°C | 6 mm | 53% | 4 m/s | 7.7 |
| 1996 | 29.3°C | 21.0°C | 12.7°C | 36.2°C | 10.1°C | 8 mm | 57% | 4.2 m/s | 7.4 |
| 1995 | 31.7°C | 23.0°C | 14.3°C | 38.4°C | 12.1°C | 3 mm | 54% | 4.4 m/s | 7.4 |
| 1994 | 30.6°C | 21.7°C | 12.7°C | 41.1°C | 8.8°C | 4 mm | 54% | 3.9 m/s | 7.8 |
| 1993 | 31.1°C | 22.3°C | 13.5°C | 39.1°C | 7.9°C | 4 mm | 56% | 3.5 m/s | 7.8 |
| 1992 | 31.4°C | 22.6°C | 13.9°C | 38.6°C | 8.3°C | 6 mm | 53% | 4.1 m/s | 7.6 |
| 1991 | 31.5°C | 22.5°C | 13.6°C | 45.5°C | 9.1°C | 9 mm | 53% | 4 m/s | 7.4 |
| 1990 | 28.5°C | 20.2°C | 12.0°C | 40.5°C | 7.1°C | 27 mm | 56% | 4 m/s | 7 |
| 1989 | 29.5°C | 21.7°C | 14.0°C | 40.8°C | 9.4°C | 50 mm | 55% | 3.9 m/s | 6.4 |
| 1988 | 29.8°C | 21.3°C | 12.8°C | 41.4°C | 6.9°C | 9 mm | 54% | 3.7 m/s | 7.5 |
| 1987 | 29.8°C | 21.0°C | 12.2°C | 35.7°C | 8.2°C | 7 mm | 53% | 3.9 m/s | 7.7 |
| 1986 | 32.7°C | 23.4°C | 14.0°C | 43.8°C | 8.9°C | 5 mm | 48% | 4.2 m/s | 8 |
| 1985 | 29.6°C | 21.1°C | 12.6°C | 41.0°C | 9.8°C | 16 mm | 57% | 3.7 m/s | 7.4 |
| 1984 | 31.6°C | 22.5°C | 13.4°C | 43.0°C | 8.8°C | 2 mm | 49% | 3.7 m/s | 7.4 |
| 1983 | 32.2°C | 23.2°C | 14.2°C | 42.3°C | 9.8°C | 4 mm | 49% | 3.9 m/s | — |
| 1982 ❄️ 🌧️ | 27.2°C | 19.6°C | 12.0°C | 37.8°C | 7.8°C | 125 mm | 64% | 3.4 m/s | — |
| 1981 | 31.7°C | 22.4°C | 13.1°C | 39.7°C | 8.7°C | 3 mm | 49% | 4.1 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 30.9°C with lows near 13.6°C (mean 22.3°C), based on 45 years of NASA POWER data.
January averages 17 mm of rainfall in Manjimup, one of the drier months. The wettest on record was 125 mm in 1982.
The hottest January reached 45.5°C in 1991. The coldest dipped to 5.9°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.8°C. Daytime highs moved from 30.5°C to 32.4°C and overnight lows from 13.1°C to 14.7°C over the same span.
January is one of the warmer months of the year in Manjimup and one of the drier months, so plan for around 30.9°C daytime highs and 13.6°C at night.
Not quite — January is the 11th coolest month in Manjimup, averaging 22.3°C.
For January in Manjimup, pack light, breathable clothing and sun protection, with typical highs of 30.9°C and lows of 13.6°C.
Relative humidity in January averages 54% — relatively dry.
Average wind speed in January is 4 m/s. The windiest January on record averaged 4.5 m/s (1999).
The wettest January on record was 1982 with 125 mm. On average, January sees 17 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 Manjimup 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.
