December is one of the warmer months of the year in Ararat, with average highs near 25.5°C and lows around 10°C (mean 17.8°C). It is about average for rainfall, averaging 44 mm of rainfall and 61% relative humidity across the period.
December is one of the warmer months of the year in Ararat. Across 45 years of records, the warmest December in Ararat was 2015 — when the month averaged 21.3°C — while the coldest was 2001 at 14.4°C. Typical December days reach 25.5°C with nights near 10°C. The long-term trend is warming, about 0.3°C per decade.
December is about average for rainfall in Ararat, averaging 44 mm of rainfall. The wettest December on record was 1985 with 109 mm, while the driest was 1997 at 6 mm.
Relative humidity in Ararat during December averages 61%. The most humid December was 1992 at 78%, and the least humid was 2015 at 44%.
December receives about 7.1 kWh/m²/day of solar energy in Ararat. The sunniest December was 2021 at 8 kWh/m²/day, and the cloudiest was 1992 at 5.8.
Average wind speed in Ararat during December is 3.1 m/s. The windiest December was 1984 at 3.7 m/s, while the calmest were 2009, 2018 and 2022 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.2°C | 17.4°C | 17.8°C | 18.7°C | 17.4°C | +0.2°C |
| Avg High | 24.9°C | 25.1°C | 25.8°C | 26.6°C | 25.1°C | +0.2°C |
| Avg Low | 9.6°C | 9.8°C | 9.9°C | 10.7°C | 9.7°C | +0.1°C |
| Avg Rain | 48 mm | 46 mm | 46 mm | 38 mm | 44 mm | -4 mm |
December temperatures in Ararat have risen by about 0.4°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 2.6°C (1993) to a record high of 43.6°C (2019).
Rainfall in December is about average for rainfall, averaging 44 mm, with a wettest year of 109 mm.
One of the best times to visit Ararat
December is one of the best times to visit Ararat. Expect days averaging 25.5°C and nights around 10°C (mean 17.8°C) — warmer than Ararat's yearly average — with moderate rainfall (44 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 | 25.4°C | 17.3°C | 9.3°C | 37.2°C | 5.6°C | 31 mm | 56% | 3.1 m/s | — |
| 2024 | 27.3°C | 19.0°C | 10.7°C | 40.6°C | 7.1°C | 35 mm | 59% | 3.1 m/s | 7.5 |
| 2023 | 25.0°C | 18.0°C | 10.9°C | 36.5°C | 6.5°C | 108 mm | 68% | 3.3 m/s | 6.3 |
| 2022 | 23.3°C | 16.3°C | 9.3°C | 36.4°C | 3.9°C | 34 mm | 69% | 2.8 m/s | 7.3 |
| 2021 | 26.2°C | 17.9°C | 9.6°C | 37.1°C | 5.4°C | 17 mm | 60% | 3.1 m/s | 8 |
| 2020 | 23.4°C | 16.0°C | 8.6°C | 33.8°C | 5.0°C | 39 mm | 62% | 3.4 m/s | 6.8 |
| 2019 | 28.2°C | 19.5°C | 10.8°C | 43.6°C | 5.3°C | 11 mm | 54% | 3.4 m/s | 7.9 |
| 2018 | 27.9°C | 20.2°C | 12.4°C | 38.1°C | 7.7°C | 66 mm | 61% | 2.8 m/s | 6.7 |
| 2017 | 25.9°C | 18.5°C | 11.1°C | 36.6°C | 6.8°C | 36 mm | 62% | 2.9 m/s | 7.1 |
| 2016 | 26.6°C | 18.6°C | 10.5°C | 36.5°C | 6.2°C | 30 mm | 57% | 3.1 m/s | 7.3 |
| 2015 🔥 | 30.3°C | 21.3°C | 12.3°C | 42.2°C | 5.8°C | 25 mm | 44% | 3.1 m/s | 7.7 |
| 2014 | 26.5°C | 18.6°C | 10.7°C | 34.0°C | 6.1°C | 20 mm | 58% | 3 m/s | 7.1 |
| 2013 | 26.2°C | 17.9°C | 9.6°C | 39.0°C | 3.7°C | 26 mm | 60% | 3 m/s | 7.3 |
| 2012 | 26.0°C | 18.1°C | 10.2°C | 36.3°C | 6.9°C | 23 mm | 58% | 3.1 m/s | 7.3 |
| 2011 | 26.4°C | 18.5°C | 10.5°C | 35.3°C | 4.6°C | 42 mm | 61% | 2.9 m/s | 7.5 |
| 2010 | 21.6°C | 15.5°C | 9.4°C | 35.6°C | 4.1°C | 103 mm | 76% | 2.9 m/s | 6.7 |
| 2009 | 25.6°C | 17.4°C | 9.1°C | 36.4°C | 5.4°C | 48 mm | 61% | 2.8 m/s | 7.5 |
| 2008 | 22.9°C | 15.9°C | 8.9°C | 29.2°C | 5.2°C | 84 mm | 66% | 3.1 m/s | 6.7 |
| 2007 | 26.9°C | 18.9°C | 10.8°C | 40.1°C | 4.5°C | 67 mm | 60% | 2.9 m/s | 7.2 |
| 2006 | 26.9°C | 18.1°C | 9.3°C | 40.7°C | 5.0°C | 17 mm | 48% | 3.3 m/s | 7.8 |
| 2005 | 27.1°C | 18.9°C | 10.7°C | 42.8°C | 6.9°C | 38 mm | 53% | 3.6 m/s | 7.1 |
| 2004 | 24.9°C | 17.7°C | 10.5°C | 35.9°C | 5.5°C | 65 mm | 65% | 3 m/s | 7.1 |
| 2003 | 28.5°C | 20.0°C | 11.4°C | 38.5°C | 6.4°C | 37 mm | 55% | 3.1 m/s | 7.2 |
| 2002 | 26.6°C | 18.5°C | 10.3°C | 35.6°C | 4.8°C | 39 mm | 56% | 3.5 m/s | 7.2 |
| 2001 ❄️ | 21.0°C | 14.4°C | 7.8°C | 33.4°C | 4.2°C | 37 mm | 70% | 3.1 m/s | 5.9 |
| 2000 | 27.1°C | 18.4°C | 9.7°C | 38.8°C | 6.5°C | 27 mm | 56% | 3.1 m/s | 7.7 |
| 1999 | 25.0°C | 17.5°C | 10.1°C | 35.2°C | 5.1°C | 72 mm | 60% | 3.4 m/s | 7 |
| 1998 | 26.2°C | 18.3°C | 10.4°C | 39.9°C | 6.6°C | 29 mm | 60% | 3.2 m/s | 7 |
| 1997 | 26.3°C | 18.4°C | 10.4°C | 33.7°C | 6.6°C | 6 mm | 57% | 3.2 m/s | 7.4 |
| 1996 | 24.0°C | 16.0°C | 7.9°C | 33.4°C | 4.2°C | 28 mm | 60% | 3.1 m/s | 7.1 |
| 1995 | 23.0°C | 15.5°C | 7.9°C | 31.5°C | 3.6°C | 34 mm | 64% | 3.3 m/s | 7 |
| 1994 | 28.9°C | 19.9°C | 10.8°C | 36.7°C | 2.7°C | 16 mm | 50% | 3 m/s | 7.9 |
| 1993 | 23.2°C | 16.0°C | 8.8°C | 31.7°C | 2.6°C | 89 mm | 66% | 3.3 m/s | 7 |
| 1992 | 22.6°C | 16.8°C | 11.0°C | 30.1°C | 5.1°C | 105 mm | 78% | 3 m/s | 5.8 |
| 1991 | 24.3°C | 16.9°C | 9.5°C | 35.7°C | 3.6°C | 62 mm | 64% | 3 m/s | 7 |
| 1990 | 27.4°C | 19.1°C | 10.7°C | 38.2°C | 5.2°C | 21 mm | 57% | 3.3 m/s | 7.1 |
| 1989 | 26.2°C | 18.2°C | 10.1°C | 34.9°C | 5.2°C | 18 mm | 58% | 3.2 m/s | 7.3 |
| 1988 | 26.5°C | 18.6°C | 10.8°C | 36.7°C | 5.5°C | 47 mm | 63% | 3 m/s | 6.9 |
| 1987 | 24.2°C | 16.4°C | 8.6°C | 35.2°C | 4.1°C | 82 mm | 63% | 3.1 m/s | 7.1 |
| 1986 | 21.9°C | 14.9°C | 7.8°C | 33.5°C | 3.2°C | 83 mm | 68% | 3.3 m/s | 6.4 |
| 1985 🌧️ | 22.6°C | 16.3°C | 10.1°C | 29.8°C | 6.0°C | 109 mm | 70% | 3.3 m/s | 6 |
| 1984 | 24.3°C | 16.5°C | 8.8°C | 34.4°C | 6.2°C | 30 mm | 61% | 3.7 m/s | 6.9 |
| 1983 | 25.4°C | 17.5°C | 9.7°C | 36.5°C | 3.9°C | 16 mm | 63% | 2.9 m/s | — |
| 1982 | 26.8°C | 18.6°C | 10.4°C | 36.0°C | 5.4°C | 27 mm | 52% | 3.2 m/s | — |
| 1981 | 26.0°C | 17.8°C | 9.7°C | 38.0°C | 5.7°C | 17 mm | 57% | 3.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 25.5°C with lows near 10°C (mean 17.8°C), based on 45 years of NASA POWER data.
December averages 44 mm of rainfall in Ararat, about average for rainfall. The wettest on record was 109 mm in 1985.
The hottest December reached 43.6°C in 2019. The coldest dipped to 2.6°C in 1993.
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 25°C to 25.4°C and overnight lows from 9.7°C to 10°C over the same span.
December is one of the warmer months of the year in Ararat and about average for rainfall, so plan for around 25.5°C daytime highs and 10°C at night.
Not quite — December is the 9th coolest month in Ararat, averaging 17.8°C.
For December in Ararat, pack light layers you can adjust through the day, with typical highs of 25.5°C and lows of 10°C.
Relative humidity in December averages 61% — moderately humid.
Average wind speed in December is 3.1 m/s. The windiest December on record averaged 3.7 m/s (1984).
The wettest December on record was 1985 with 109 mm. On average, December sees 44 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 Ararat 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.
