December is one of the warmer months of the year in Mount Magnet, with average highs near 37°C and lows around 20°C (mean 28.5°C). It is about average for rainfall, averaging 20 mm of rainfall and 28% relative humidity across the period.
December is one of the warmer months of the year in Mount Magnet. Across 45 years of records, the warmest December in Mount Magnet was 2019 — when the month averaged 31.9°C — while the coldest was 1985 at 25.5°C. Typical December days reach 37°C with nights near 20°C. The long-term trend is warming, about 0.5°C per decade.
December is about average for rainfall in Mount Magnet, averaging 20 mm of rainfall. The wettest December on record was 2010 with 107 mm, while the driest was 1986 at 0 mm.
Relative humidity in Mount Magnet during December averages 28%. The most humid December was 2011 at 40%, and the least humid were 1986 and 2021 at 22%.
December receives about 8.6 kWh/m²/day of solar energy in Mount Magnet. The sunniest December was 1985 at 9.3 kWh/m²/day, and the cloudiest were 2010, 2011 and 2012 at 7.7.
Average wind speed in Mount Magnet during December is 4.1 m/s. The windiest Decembers were 1993 and 1995 at 4.5 m/s, while the calmest was 1982 at 3.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.6°C | 28.1°C | 28.3°C | 28.8°C | 29.9°C | +2.3°C |
| Avg High | 36.3°C | 36.5°C | 36.9°C | 37.2°C | 38.4°C | +2.1°C |
| Avg Low | 18.9°C | 19.8°C | 19.7°C | 20.5°C | 21.4°C | +2.5°C |
| Avg Rain | 17 mm | 20 mm | 17 mm | 29 mm | 12 mm | -6 mm |
December temperatures in Mount Magnet have risen by about 2.6°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 10.7°C (1998) to a record high of 46°C (1997).
Rainfall in December is about average for rainfall, averaging 20 mm, with a wettest year of 107 mm.
A good time to visit Mount Magnet
December is a good time to visit Mount Magnet, with days averaging 37°C and nights around 20°C (mean 28.5°C, warmer than Mount Magnet's yearly average) and low rainfall. October and April are marginally more temperate, but December still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 39.0°C | 30.7°C | 22.3°C | 44.9°C | 16.6°C | 16 mm | 24% | 4.1 m/s | — |
| 2024 | 38.3°C | 30.3°C | 22.3°C | 43.3°C | 14.8°C | 26 mm | 34% | 3.7 m/s | 8.3 |
| 2023 | 39.2°C | 30.6°C | 21.9°C | 44.1°C | 14.8°C | 1 mm | 22% | 4.4 m/s | 8.9 |
| 2022 | 37.1°C | 28.6°C | 20.1°C | 41.3°C | 15.8°C | 12 mm | 27% | 4.2 m/s | 8.7 |
| 2021 | 38.9°C | 30.0°C | 21.1°C | 42.5°C | 15.9°C | 2 mm | 22% | 4.2 m/s | 9 |
| 2020 | 37.9°C | 29.3°C | 20.8°C | 43.0°C | 11.7°C | 12 mm | 24% | 4.3 m/s | 8.8 |
| 2019 🔥 | 40.5°C | 31.9°C | 23.3°C | 44.7°C | 15.6°C | 6 mm | 23% | 4 m/s | 8.5 |
| 2018 | 38.1°C | 29.4°C | 20.6°C | 45.9°C | 14.7°C | 3 mm | 27% | 4.3 m/s | 8.6 |
| 2017 | 36.8°C | 28.8°C | 20.7°C | 43.4°C | 13.5°C | 7 mm | 29% | 4.2 m/s | 8.3 |
| 2016 | 37.2°C | 28.6°C | 19.9°C | 43.0°C | 13.9°C | 9 mm | 26% | 4.1 m/s | 8.6 |
| 2015 | 37.6°C | 28.8°C | 20.1°C | 42.5°C | 10.7°C | 7 mm | 25% | 4.2 m/s | 8.8 |
| 2014 | 37.6°C | 28.8°C | 20.1°C | 44.0°C | 16.2°C | 3 mm | 25% | 4.2 m/s | 9 |
| 2013 | 37.3°C | 29.0°C | 20.6°C | 44.9°C | 15.0°C | 39 mm | 28% | 4.1 m/s | 8.3 |
| 2012 | 36.8°C | 28.8°C | 20.8°C | 43.0°C | 11.9°C | 45 mm | 34% | 3.7 m/s | 7.7 |
| 2011 | 34.3°C | 26.7°C | 19.1°C | 41.9°C | 15.0°C | 65 mm | 40% | 4 m/s | 7.7 |
| 2010 🌧️ | 35.6°C | 27.6°C | 19.6°C | 44.5°C | 13.6°C | 107 mm | 37% | 4 m/s | 7.7 |
| 2009 | 38.1°C | 29.8°C | 21.5°C | 44.5°C | 15.0°C | 20 mm | 27% | 4.3 m/s | 8.5 |
| 2008 | 36.4°C | 27.7°C | 19.0°C | 42.2°C | 12.1°C | 8 mm | 30% | 4.1 m/s | 8.7 |
| 2007 | 34.2°C | 26.1°C | 18.1°C | 43.8°C | 11.5°C | 39 mm | 32% | 4.1 m/s | 8.1 |
| 2006 | 37.4°C | 28.8°C | 20.3°C | 41.3°C | 15.1°C | 24 mm | 29% | 4.1 m/s | 8.7 |
| 2005 | 35.7°C | 26.1°C | 16.6°C | 43.5°C | 11.6°C | 2 mm | 26% | 4 m/s | 9 |
| 2004 | 38.1°C | 29.3°C | 20.5°C | 43.3°C | 12.5°C | 10 mm | 25% | 4.3 m/s | 8.5 |
| 2003 | 38.5°C | 29.4°C | 20.2°C | 44.1°C | 14.3°C | 2 mm | 24% | 4 m/s | 8.9 |
| 2002 | 37.4°C | 29.1°C | 20.9°C | 44.1°C | 14.8°C | 28 mm | 28% | 4 m/s | 8.2 |
| 2001 | 34.7°C | 26.3°C | 17.9°C | 42.0°C | 12.6°C | 17 mm | 32% | 4.1 m/s | 8.7 |
| 2000 | 38.7°C | 30.3°C | 21.8°C | 43.9°C | 12.9°C | 21 mm | 25% | 3.9 m/s | 8.3 |
| 1999 | 36.1°C | 28.6°C | 21.1°C | 41.7°C | 12.2°C | 28 mm | 32% | 4.4 m/s | 8.3 |
| 1998 | 35.3°C | 27.6°C | 19.9°C | 39.9°C | 10.7°C | 71 mm | 38% | 3.9 m/s | 8.1 |
| 1997 | 39.2°C | 30.2°C | 21.3°C | 46.0°C | 14.4°C | 1 mm | 22% | 4.2 m/s | 8.8 |
| 1996 | 35.9°C | 27.5°C | 19.2°C | 42.4°C | 12.2°C | 19 mm | 31% | 4.1 m/s | 8.7 |
| 1995 | 35.6°C | 27.1°C | 18.7°C | 43.4°C | 14.0°C | 30 mm | 33% | 4.5 m/s | 8.5 |
| 1994 | 37.9°C | 29.2°C | 20.5°C | 44.4°C | 15.3°C | 22 mm | 25% | 4 m/s | 8.8 |
| 1993 | 36.7°C | 28.2°C | 19.8°C | 42.0°C | 12.9°C | 5 mm | 28% | 4.5 m/s | 8.7 |
| 1992 | 35.7°C | 26.9°C | 18.0°C | 42.9°C | 13.6°C | 3 mm | 26% | 4.2 m/s | 8.7 |
| 1991 | 35.8°C | 27.7°C | 19.7°C | 40.6°C | 14.6°C | 15 mm | 30% | 3.8 m/s | 8.3 |
| 1990 | 37.2°C | 28.3°C | 19.4°C | 43.7°C | 11.8°C | 4 mm | 23% | 4.1 m/s | 8.8 |
| 1989 | 37.8°C | 28.7°C | 19.7°C | 42.6°C | 14.5°C | 0 mm | 23% | 4 m/s | 8.8 |
| 1988 | 34.1°C | 26.1°C | 18.0°C | 42.8°C | 13.2°C | 45 mm | 36% | 4.3 m/s | 8.4 |
| 1987 | 37.4°C | 28.7°C | 20.1°C | 43.4°C | 11.1°C | 3 mm | 24% | 4 m/s | 8.8 |
| 1986 | 37.1°C | 28.0°C | 18.9°C | 43.8°C | 13.0°C | 0 mm | 22% | 4 m/s | 9.2 |
| 1985 ❄️ | 34.9°C | 25.5°C | 16.2°C | 41.9°C | 12.2°C | 1 mm | 24% | 4.3 m/s | 9.3 |
| 1984 | 36.4°C | 27.4°C | 18.4°C | 41.7°C | 12.5°C | 5 mm | 25% | 4.1 m/s | 8.8 |
| 1983 | 36.2°C | 28.1°C | 20.1°C | 41.9°C | 13.9°C | 55 mm | 38% | 3.9 m/s | — |
| 1982 | 37.0°C | 28.6°C | 20.3°C | 43.2°C | 13.0°C | 14 mm | 30% | 3.5 m/s | — |
| 1981 | 36.1°C | 27.4°C | 18.7°C | 41.2°C | 13.1°C | 34 mm | 30% | 4.2 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 37°C with lows near 20°C (mean 28.5°C), based on 45 years of NASA POWER data.
December averages 20 mm of rainfall in Mount Magnet, about average for rainfall. The wettest on record was 107 mm in 2010.
The hottest December reached 46°C in 1997. The coldest dipped to 10.7°C in 1998.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 2.6°C. Daytime highs moved from 36.1°C to 38.5°C and overnight lows from 18.7°C to 21.5°C over the same span.
December is one of the warmer months of the year in Mount Magnet and about average for rainfall, so plan for around 37°C daytime highs and 20°C at night.
Not quite — December is the 10th coolest month in Mount Magnet, averaging 28.5°C.
For December in Mount Magnet, pack light, breathable clothing and sun protection, with typical highs of 37°C and lows of 20°C.
Relative humidity in December averages 28% — relatively dry.
Average wind speed in December is 4.1 m/s. The windiest December on record averaged 4.5 m/s (1993).
The wettest December on record was 2010 with 107 mm. On average, December sees 20 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 Mount Magnet behaves each December, 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 December specifically, along with year-by-year records and how the month has changed over the decades.
