December is one of the cooler months of the year in Ḩarmah, with average highs near 21.5°C and lows around 8.4°C (mean 15°C). It is about average for rainfall, averaging 7 mm of rainfall and 45% relative humidity across the period.
December is one of the cooler months of the year in Ḩarmah. Across 45 years of records, the warmest December in Ḩarmah was 2001 — when the month averaged 18.9°C — while the coldest was 2006 at 10.7°C. Typical December days reach 21.5°C with nights near 8.4°C. The long-term trend is warming, about 0.2°C per decade.
December is about average for rainfall in Ḩarmah, averaging 7 mm of rainfall. The wettest December on record was 2025 with 46 mm, while the driest were 2008, 2011 and 2013, among others at 0 mm.
Relative humidity in Ḩarmah during December averages 45%. The most humid December was 1995 at 66%, and the least humid was 2010 at 32%.
December receives about 3.9 kWh/m²/day of solar energy in Ḩarmah. The sunniest December was 2008 at 4.5 kWh/m²/day, and the cloudiest was 1995 at 3.
Average wind speed in Ḩarmah during December is 2.9 m/s. The windiest December was 2001 at 3.4 m/s, while the calmest was 2010 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 14.3°C | 15.3°C | 14.9°C | 14.9°C | 15.9°C | +1.6°C |
| Avg High | 20.8°C | 21.8°C | 21.4°C | 21.6°C | 22.1°C | +1.3°C |
| Avg Low | 7.8°C | 8.7°C | 8.4°C | 8.1°C | 9.6°C | +1.8°C |
| Avg Rain | 7 mm | 6 mm | 6 mm | 5 mm | 16 mm | +9 mm |
December temperatures in Ḩarmah have risen by about 1.8°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -2.7°C (1994) to a record high of 29.5°C (2022).
Rainfall in December is about average for rainfall, averaging 7 mm, with a wettest year of 46 mm.
A good time to visit Ḩarmah
December is a good time to visit Ḩarmah, with days averaging 21.5°C and nights around 8.4°C (mean 15°C, cooler than Ḩarmah's yearly average) and low rainfall. November and March 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 🌧️ | 20.7°C | 14.9°C | 9.1°C | 27.2°C | 1.7°C | 46 mm | 53% | 2.8 m/s | — |
| 2024 | 21.8°C | 15.1°C | 8.4°C | 28.7°C | -1.4°C | 1 mm | 40% | 2.9 m/s | 4 |
| 2023 | 24.0°C | 17.2°C | 10.4°C | 27.4°C | 4.8°C | 11 mm | 41% | 2.8 m/s | 3.9 |
| 2022 | 22.0°C | 16.3°C | 10.5°C | 29.5°C | 2.7°C | 27 mm | 53% | 2.7 m/s | 3.6 |
| 2021 | 22.7°C | 16.3°C | 9.9°C | 28.4°C | 6.6°C | 4 mm | 39% | 2.9 m/s | 3.6 |
| 2020 | 21.3°C | 15.3°C | 9.3°C | 27.4°C | 2.9°C | 8 mm | 52% | 2.8 m/s | 3.9 |
| 2019 | 22.8°C | 15.8°C | 8.9°C | 27.5°C | 3.4°C | 0 mm | 44% | 3.1 m/s | 4.2 |
| 2018 | 22.7°C | 16.6°C | 10.4°C | 26.5°C | 6.0°C | 9 mm | 54% | 2.9 m/s | 3.9 |
| 2017 | 21.3°C | 14.0°C | 6.8°C | 28.4°C | -0.2°C | 2 mm | 34% | 2.4 m/s | 4.4 |
| 2016 | 22.0°C | 15.2°C | 8.4°C | 28.4°C | 1.8°C | 11 mm | 48% | 3.1 m/s | 4 |
| 2015 | 19.5°C | 13.6°C | 7.6°C | 28.7°C | 0.1°C | 11 mm | 52% | 3.1 m/s | 3.8 |
| 2014 | 22.6°C | 15.8°C | 8.9°C | 27.1°C | 3.6°C | 0 mm | 44% | 2.4 m/s | 4.2 |
| 2013 | 20.8°C | 14.0°C | 7.1°C | 28.6°C | 0.8°C | 0 mm | 41% | 3 m/s | 4.1 |
| 2012 | 21.5°C | 15.5°C | 9.6°C | 28.4°C | 3.5°C | 11 mm | 55% | 3.2 m/s | 3.9 |
| 2011 | 20.2°C | 13.0°C | 5.7°C | 26.7°C | 2.5°C | 0 mm | 33% | 2.4 m/s | 4.4 |
| 2010 | 22.2°C | 15.0°C | 7.7°C | 26.5°C | 1.1°C | 0 mm | 32% | 2.3 m/s | 4.4 |
| 2009 | 21.7°C | 15.6°C | 9.5°C | 26.1°C | 6.1°C | 5 mm | 50% | 2.7 m/s | 4 |
| 2008 | 20.8°C | 13.3°C | 5.7°C | 26.9°C | -0.8°C | 0 mm | 33% | 2.8 m/s | 4.5 |
| 2007 | 22.6°C | 16.0°C | 9.4°C | 28.1°C | 0.2°C | 0 mm | 39% | 3.1 m/s | 4 |
| 2006 ❄️ | 17.4°C | 10.7°C | 4.1°C | 25.3°C | -2.6°C | 9 mm | 50% | 2.9 m/s | 4 |
| 2005 | 24.0°C | 17.2°C | 10.3°C | 28.8°C | 3.1°C | 1 mm | 33% | 2.5 m/s | 4.2 |
| 2004 | 18.5°C | 12.4°C | 6.3°C | 26.1°C | -0.3°C | 5 mm | 52% | 3 m/s | 3.8 |
| 2003 | 21.5°C | 15.5°C | 9.4°C | 27.8°C | 4.6°C | 24 mm | 56% | 3 m/s | 3.8 |
| 2002 | 20.8°C | 14.7°C | 8.6°C | 29.1°C | 1.2°C | 8 mm | 49% | 3.2 m/s | 3.7 |
| 2001 🔥 | 25.1°C | 18.9°C | 12.7°C | 28.9°C | 6.8°C | 3 mm | 46% | 3.4 m/s | 3.8 |
| 2000 | 21.7°C | 14.9°C | 8.0°C | 27.8°C | 3.1°C | 1 mm | 49% | 3 m/s | 4.4 |
| 1999 | 21.9°C | 14.8°C | 7.7°C | 27.5°C | 2.8°C | 3 mm | 40% | 2.5 m/s | 4.2 |
| 1998 | 25.7°C | 18.0°C | 10.3°C | 28.2°C | 6.6°C | 0 mm | 32% | 2.6 m/s | 4.3 |
| 1997 | 20.7°C | 14.9°C | 9.1°C | 26.0°C | 3.3°C | 2 mm | 59% | 3 m/s | 3.6 |
| 1996 | 22.9°C | 16.1°C | 9.4°C | 25.6°C | 6.2°C | 1 mm | 41% | 3 m/s | 3.8 |
| 1995 | 18.5°C | 13.7°C | 8.9°C | 27.5°C | 4.1°C | 33 mm | 66% | 3 m/s | 3 |
| 1994 | 19.2°C | 13.0°C | 6.7°C | 26.8°C | -2.7°C | 7 mm | 43% | 3 m/s | 3.5 |
| 1993 | 24.0°C | 16.6°C | 9.3°C | 28.0°C | 3.8°C | 0 mm | 39% | 2.5 m/s | 4 |
| 1992 | 19.6°C | 13.8°C | 8.0°C | 25.1°C | 2.4°C | 15 mm | 53% | 3.2 m/s | 3.3 |
| 1991 | 21.4°C | 15.0°C | 8.6°C | 28.8°C | 0.8°C | 0 mm | 45% | 3 m/s | 4.1 |
| 1990 | 24.5°C | 16.9°C | 9.3°C | 28.1°C | 0.0°C | 0 mm | 34% | 2.7 m/s | 3.8 |
| 1989 | 20.4°C | 13.8°C | 7.2°C | 28.7°C | 2.1°C | 2 mm | 45% | 2.7 m/s | 3.8 |
| 1988 | 22.3°C | 15.6°C | 8.8°C | 27.6°C | 0.2°C | 0 mm | 40% | 2.8 m/s | 3.6 |
| 1987 | 22.1°C | 15.5°C | 8.9°C | 27.1°C | 1.6°C | 0 mm | 42% | 3.2 m/s | 3.6 |
| 1986 | 19.1°C | 12.6°C | 6.2°C | 26.7°C | -1.7°C | 16 mm | 52% | 3.1 m/s | 3.7 |
| 1985 | 20.9°C | 14.5°C | 8.0°C | 28.2°C | 1.5°C | 12 mm | 50% | 2.8 m/s | 3.5 |
| 1984 | 19.1°C | 13.5°C | 7.8°C | 26.6°C | 3.7°C | 10 mm | 55% | 3 m/s | 3.4 |
| 1983 | 21.2°C | 14.6°C | 8.1°C | 28.3°C | 2.0°C | 0 mm | 41% | 2.9 m/s | — |
| 1982 | 17.6°C | 11.4°C | 5.3°C | 27.2°C | 1.3°C | 20 mm | 57% | 3 m/s | — |
| 1981 | 24.1°C | 16.8°C | 9.5°C | 26.9°C | 5.9°C | 1 mm | 36% | 3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 21.5°C with lows near 8.4°C (mean 15°C), based on 45 years of NASA POWER data.
December averages 7 mm of rainfall in Ḩarmah, about average for rainfall. The wettest on record was 46 mm in 2025.
The hottest December reached 29.5°C in 2022. The coldest dipped to -2.7°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1.8°C. Daytime highs moved from 20.6°C to 22.2°C and overnight lows from 7.7°C to 9.7°C over the same span.
December is one of the cooler months of the year in Ḩarmah and about average for rainfall, so plan for around 21.5°C daytime highs and 8.4°C at night.
Not quite — December is the 2nd coolest month in Ḩarmah, averaging 15°C.
For December in Ḩarmah, pack light layers you can adjust through the day, with typical highs of 21.5°C and lows of 8.4°C.
Relative humidity in December averages 45% — relatively dry.
Average wind speed in December is 2.9 m/s. The windiest December on record averaged 3.4 m/s (2001).
The wettest December on record was 2025 with 46 mm. On average, December sees 7 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 Ḩarmah 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.
