December is one of the warmer months of the year in Forbes, with average highs near 31.3°C and lows around 15.5°C (mean 23.4°C). It is about average for rainfall, averaging 57 mm of rainfall and 46% relative humidity across the period.
December is one of the warmer months of the year in Forbes. Across 45 years of records, the warmest December in Forbes was 2019 — when the month averaged 26.7°C — while the coldest was 2010 at 20.2°C. Typical December days reach 31.3°C with nights near 15.5°C. The long-term trend is warming, about 0.2°C per decade.
December is about average for rainfall in Forbes, averaging 57 mm of rainfall. The wettest December on record was 2010 with 179 mm, while the driest was 2019 at 6 mm.
Relative humidity in Forbes during December averages 46%. The most humid December was 2010 at 71%, and the least humid was 2019 at 28%.
December receives about 7.8 kWh/m²/day of solar energy in Forbes. The sunniest December was 1994 at 8.6 kWh/m²/day, and the cloudiest was 1992 at 6.7.
Average wind speed in Forbes during December is 2.8 m/s. The windiest December was 1984 at 3.2 m/s, while the calmest was 2011 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.1°C | 23.0°C | 23.8°C | 24.0°C | 23.2°C | +0.1°C |
| Avg High | 31.0°C | 30.9°C | 31.9°C | 31.8°C | 30.9°C | -0.1°C |
| Avg Low | 15.1°C | 15.1°C | 15.7°C | 16.3°C | 15.5°C | +0.4°C |
| Avg Rain | 57 mm | 61 mm | 50 mm | 62 mm | 57 mm | +0 mm |
December temperatures in Forbes have risen by about 0.4°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 5.6°C (2022) to a record high of 44.9°C (2019).
Rainfall in December is about average for rainfall, averaging 57 mm, with a wettest year of 179 mm.
One of the best times to visit Forbes
December is one of the best times to visit Forbes. Expect days averaging 31.3°C and nights around 15.5°C (mean 23.4°C) — warmer than Forbes's yearly average — with moderate rainfall (57 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 | 32.7°C | 24.1°C | 15.5°C | 41.2°C | 5.6°C | 39 mm | 38% | 2.8 m/s | — |
| 2024 | 31.8°C | 24.3°C | 16.8°C | 37.6°C | 9.4°C | 72 mm | 51% | 2.5 m/s | 8.3 |
| 2023 | 32.5°C | 25.0°C | 17.5°C | 42.0°C | 13.6°C | 118 mm | 52% | 2.6 m/s | 7.7 |
| 2022 | 27.9°C | 20.3°C | 12.7°C | 36.0°C | 5.6°C | 34 mm | 56% | 2.6 m/s | 7.9 |
| 2021 | 29.9°C | 22.6°C | 15.3°C | 35.2°C | 9.5°C | 36 mm | 58% | 2.4 m/s | 7.9 |
| 2020 | 30.6°C | 22.8°C | 15.0°C | 41.9°C | 8.5°C | 41 mm | 47% | 2.9 m/s | 7.5 |
| 2019 🔥 | 35.6°C | 26.7°C | 17.7°C | 44.9°C | 7.5°C | 6 mm | 28% | 2.9 m/s | 8.4 |
| 2018 | 34.2°C | 25.9°C | 17.5°C | 43.1°C | 9.3°C | 23 mm | 41% | 2.8 m/s | 8 |
| 2017 | 32.4°C | 24.6°C | 16.8°C | 41.7°C | 9.7°C | 80 mm | 52% | 2.7 m/s | 7.4 |
| 2016 | 32.8°C | 25.0°C | 17.2°C | 38.2°C | 9.0°C | 60 mm | 49% | 2.9 m/s | 7.3 |
| 2015 | 32.2°C | 24.1°C | 16.1°C | 39.8°C | 9.5°C | 36 mm | 42% | 2.8 m/s | 7.7 |
| 2014 | 31.7°C | 24.2°C | 16.7°C | 38.3°C | 11.4°C | 89 mm | 50% | 2.9 m/s | 7.5 |
| 2013 | 32.8°C | 24.3°C | 15.8°C | 41.4°C | 7.2°C | 34 mm | 37% | 2.8 m/s | 8.2 |
| 2012 | 33.0°C | 25.0°C | 17.0°C | 39.1°C | 9.2°C | 22 mm | 36% | 2.9 m/s | 8 |
| 2011 | 27.1°C | 20.4°C | 13.7°C | 32.8°C | 8.2°C | 90 mm | 62% | 2.3 m/s | 7.4 |
| 2010 ❄️ 🌧️ | 26.3°C | 20.2°C | 14.0°C | 34.7°C | 6.7°C | 179 mm | 71% | 2.6 m/s | 7.2 |
| 2009 | 32.6°C | 24.4°C | 16.3°C | 41.6°C | 9.9°C | 91 mm | 43% | 2.8 m/s | 7.7 |
| 2008 | 29.9°C | 22.3°C | 14.6°C | 35.3°C | 9.5°C | 55 mm | 48% | 3 m/s | 7.7 |
| 2007 | 30.0°C | 22.7°C | 15.4°C | 36.8°C | 9.6°C | 105 mm | 57% | 2.6 m/s | 7.2 |
| 2006 | 32.9°C | 24.8°C | 16.8°C | 38.6°C | 6.2°C | 29 mm | 35% | 2.8 m/s | 7.5 |
| 2005 | 32.4°C | 23.6°C | 14.8°C | 42.3°C | 9.5°C | 31 mm | 42% | 3 m/s | 8.5 |
| 2004 | 30.3°C | 22.4°C | 14.5°C | 37.9°C | 7.9°C | 91 mm | 52% | 2.9 m/s | 7.8 |
| 2003 | 33.5°C | 25.4°C | 17.3°C | 40.0°C | 10.0°C | 45 mm | 45% | 2.6 m/s | 7.7 |
| 2002 | 33.0°C | 24.8°C | 16.7°C | 41.8°C | 7.5°C | 30 mm | 36% | 3 m/s | 7.5 |
| 2001 | 31.8°C | 23.4°C | 15.1°C | 40.8°C | 9.6°C | 13 mm | 31% | 2.9 m/s | 7.5 |
| 2000 | 32.7°C | 24.1°C | 15.6°C | 39.6°C | 9.9°C | 13 mm | 43% | 2.5 m/s | 8.4 |
| 1999 | 28.2°C | 21.1°C | 14.1°C | 35.7°C | 8.9°C | 125 mm | 55% | 2.9 m/s | 7.4 |
| 1998 | 32.2°C | 23.8°C | 15.4°C | 38.1°C | 9.4°C | 29 mm | 46% | 2.6 m/s | 8.1 |
| 1997 | 34.3°C | 25.8°C | 17.4°C | 41.0°C | 12.3°C | 42 mm | 36% | 2.7 m/s | 8.2 |
| 1996 | 30.6°C | 22.4°C | 14.2°C | 38.1°C | 8.2°C | 63 mm | 45% | 3.1 m/s | 7.8 |
| 1995 | 29.3°C | 21.3°C | 13.3°C | 38.5°C | 7.6°C | 30 mm | 49% | 2.9 m/s | 8 |
| 1994 | 34.0°C | 25.2°C | 16.5°C | 42.1°C | 7.8°C | 45 mm | 41% | 2.7 m/s | 8.6 |
| 1993 | 29.5°C | 21.9°C | 14.3°C | 39.1°C | 8.9°C | 40 mm | 51% | 3.1 m/s | 7.3 |
| 1992 | 26.9°C | 20.6°C | 14.3°C | 33.5°C | 7.2°C | 144 mm | 66% | 2.6 m/s | 6.7 |
| 1991 | 29.1°C | 21.8°C | 14.5°C | 39.6°C | 7.3°C | 84 mm | 48% | 2.9 m/s | 7.2 |
| 1990 | 34.9°C | 26.1°C | 17.4°C | 42.5°C | 9.5°C | 11 mm | 34% | 3 m/s | 8.3 |
| 1989 | 32.4°C | 24.1°C | 15.7°C | 39.4°C | 10.0°C | 32 mm | 38% | 3 m/s | 8.2 |
| 1988 | 31.0°C | 23.8°C | 16.6°C | 36.5°C | 9.9°C | 145 mm | 57% | 2.8 m/s | 7.5 |
| 1987 | 32.0°C | 23.7°C | 15.3°C | 40.1°C | 5.9°C | 63 mm | 42% | 3 m/s | 7.4 |
| 1986 | 29.8°C | 21.5°C | 13.2°C | 38.2°C | 7.3°C | 25 mm | 42% | 3.1 m/s | 8.2 |
| 1985 | 28.2°C | 21.0°C | 13.7°C | 36.7°C | 8.3°C | 74 mm | 55% | 2.9 m/s | 7.6 |
| 1984 | 30.9°C | 22.5°C | 14.1°C | 40.4°C | 8.1°C | 20 mm | 36% | 3.2 m/s | 8.3 |
| 1983 | 29.5°C | 22.1°C | 14.7°C | 38.2°C | 7.2°C | 110 mm | 57% | 2.7 m/s | — |
| 1982 | 33.6°C | 25.4°C | 17.2°C | 39.6°C | 9.8°C | 10 mm | 30% | 2.9 m/s | — |
| 1981 | 31.7°C | 23.4°C | 15.0°C | 37.7°C | 9.6°C | 30 mm | 40% | 2.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 31.3°C with lows near 15.5°C (mean 23.4°C), based on 45 years of NASA POWER data.
December averages 57 mm of rainfall in Forbes, about average for rainfall. The wettest on record was 179 mm in 2010.
The hottest December reached 44.9°C in 2019. The coldest dipped to 5.6°C in 2022.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.4°C. Daytime highs moved from 30.8°C to 31°C and overnight lows from 14.9°C to 15.6°C over the same span.
December is one of the warmer months of the year in Forbes and about average for rainfall, so plan for around 31.3°C daytime highs and 15.5°C at night.
Not quite — December is the 10th coolest month in Forbes, averaging 23.4°C.
For December in Forbes, pack light, breathable clothing and sun protection, with typical highs of 31.3°C and lows of 15.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 46% — relatively dry.
Average wind speed in December is 2.8 m/s. The windiest December on record averaged 3.2 m/s (1984).
The wettest December on record was 2010 with 179 mm. On average, December sees 57 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 Forbes 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.
