December is one of the cooler months of the year in Deeg, with average highs near 25°C and lows around 9.1°C (mean 17.1°C). It is one of the drier months, averaging 5 mm of rainfall and 39% relative humidity across the period.
December is one of the cooler months of the year in Deeg. Across 45 years of records, the warmest December in Deeg was 2008 — when the month averaged 19.4°C — while the coldest was 2019 at 14.2°C. Typical December days reach 25°C with nights near 9.1°C. The long-term trend is cooling, about 0.2°C per decade.
December is one of the drier months in Deeg, averaging 5 mm of rainfall. The wettest December on record was 1997 with 34 mm, while the driest were 2020, 2022 and 2025, among others at 0 mm.
Relative humidity in Deeg during December averages 39%. The most humid December was 1997 at 58%, and the least humid was 1999 at 20%.
December receives about 3.4 kWh/m²/day of solar energy in Deeg. The sunniest Decembers were 1993 and 1994 at 4 kWh/m²/day, and the cloudiest was 2019 at 2.3.
Average wind speed in Deeg during December is 1.5 m/s. The windiest December was 1984 at 1.9 m/s, while the calmest was 2023 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.1°C | 17.4°C | 17.8°C | 16.3°C | 16.5°C | -0.6°C |
| Avg High | 25.2°C | 25.6°C | 25.8°C | 24.0°C | 24.0°C | -1.2°C |
| Avg Low | 8.9°C | 9.1°C | 9.9°C | 8.7°C | 8.9°C | 0°C |
| Avg Rain | 5 mm | 6 mm | 4 mm | 7 mm | 3 mm | -1 mm |
December temperatures in Deeg have fallen by about 0.6°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 0.6°C (2019) to a record high of 31.5°C (1987).
Rainfall in December is one of the drier months, averaging 5 mm, with a wettest year of 34 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Deeg
December is a good time to visit Deeg, with days averaging 25°C and nights around 9.1°C (mean 17.1°C, cooler than Deeg'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 | 24.3°C | 16.4°C | 8.5°C | 26.6°C | 5.7°C | 0 mm | 52% | 1.4 m/s | — |
| 2024 | 23.5°C | 16.1°C | 8.7°C | 28.1°C | 4.4°C | 12 mm | 52% | 1.5 m/s | 3 |
| 2023 | 24.3°C | 17.2°C | 10.1°C | 26.8°C | 6.7°C | 5 mm | 49% | 1.1 m/s | 2.9 |
| 2022 | 23.7°C | 16.0°C | 8.4°C | 27.1°C | 4.1°C | 0 mm | 54% | 1.5 m/s | 3.5 |
| 2021 | 22.5°C | 15.6°C | 8.7°C | 26.8°C | 1.7°C | 3 mm | 55% | 1.3 m/s | 2.9 |
| 2020 | 25.5°C | 17.4°C | 9.2°C | 30.7°C | 3.4°C | 0 mm | 36% | 1.6 m/s | 3.3 |
| 2019 ❄️ | 20.8°C | 14.2°C | 7.6°C | 25.4°C | 0.6°C | 22 mm | 55% | 1.3 m/s | 2.3 |
| 2018 | 23.4°C | 15.7°C | 8.0°C | 27.3°C | 2.3°C | 0 mm | 44% | 1.3 m/s | 3.3 |
| 2017 | 25.6°C | 17.7°C | 9.8°C | 27.9°C | 5.5°C | 3 mm | 36% | 1.5 m/s | 3.1 |
| 2016 | 26.6°C | 18.4°C | 10.2°C | 28.6°C | 7.1°C | 0 mm | 30% | 1.4 m/s | 3.2 |
| 2015 | 25.1°C | 17.0°C | 8.9°C | 29.1°C | 3.8°C | 6 mm | 29% | 1.4 m/s | 3.3 |
| 2014 | 23.5°C | 16.0°C | 8.4°C | 30.4°C | 4.1°C | 22 mm | 36% | 1.5 m/s | 3 |
| 2013 | 23.5°C | 16.0°C | 8.5°C | 27.6°C | 2.5°C | 9 mm | 54% | 1.4 m/s | 3.1 |
| 2012 | 24.3°C | 16.2°C | 8.2°C | 27.9°C | 4.2°C | 1 mm | 41% | 1.7 m/s | 3.2 |
| 2011 | 24.5°C | 16.8°C | 9.2°C | 29.2°C | 4.7°C | 0 mm | 41% | 1.3 m/s | 3.3 |
| 2010 | 23.0°C | 15.4°C | 7.9°C | 24.7°C | 4.0°C | 5 mm | 54% | 1.2 m/s | 3.3 |
| 2009 | 24.5°C | 17.3°C | 10.1°C | 27.1°C | 5.2°C | 2 mm | 47% | 1.2 m/s | 3.2 |
| 2008 🔥 | 27.0°C | 19.4°C | 11.8°C | 30.1°C | 6.8°C | 0 mm | 44% | 1.2 m/s | 3.1 |
| 2007 | 25.3°C | 17.1°C | 8.9°C | 28.7°C | 4.6°C | 2 mm | 34% | 1.8 m/s | 3.3 |
| 2006 | 26.1°C | 18.2°C | 10.2°C | 29.6°C | 6.2°C | 1 mm | 39% | 1.7 m/s | 3.3 |
| 2005 | 25.1°C | 16.6°C | 8.2°C | 28.4°C | 5.6°C | 0 mm | 29% | 1.4 m/s | 3.4 |
| 2004 | 25.1°C | 17.7°C | 10.2°C | 28.3°C | 4.5°C | 0 mm | 42% | 1.3 m/s | 3.2 |
| 2003 | 24.6°C | 17.3°C | 9.9°C | 29.0°C | 4.5°C | 16 mm | 49% | 1.4 m/s | 2.7 |
| 2002 | 26.4°C | 18.4°C | 10.4°C | 29.5°C | 6.7°C | 20 mm | 34% | 1.4 m/s | 3.3 |
| 2001 | 26.4°C | 18.0°C | 9.6°C | 30.8°C | 5.2°C | 0 mm | 27% | 1.5 m/s | 3.3 |
| 2000 | 27.0°C | 18.1°C | 9.2°C | 30.8°C | 5.5°C | 2 mm | 22% | 1.6 m/s | 3.8 |
| 1999 | 26.5°C | 18.0°C | 9.5°C | 29.7°C | 6.9°C | 0 mm | 20% | 1.3 m/s | 3.8 |
| 1998 | 26.1°C | 17.5°C | 8.9°C | 30.5°C | 5.6°C | 0 mm | 37% | 1.4 m/s | 3.2 |
| 1997 🌧️ | 22.0°C | 15.3°C | 8.6°C | 26.4°C | 4.4°C | 34 mm | 58% | 1.4 m/s | 3 |
| 1996 | 25.7°C | 16.4°C | 7.0°C | 27.4°C | 3.0°C | 0 mm | 28% | 1.6 m/s | 3.9 |
| 1995 | 25.5°C | 17.6°C | 9.8°C | 27.7°C | 5.1°C | 3 mm | 41% | 1.6 m/s | 3.7 |
| 1994 | 26.8°C | 18.0°C | 9.2°C | 31.3°C | 4.0°C | 0 mm | 25% | 1.6 m/s | 4 |
| 1993 | 26.4°C | 17.4°C | 8.3°C | 29.6°C | 4.6°C | 0 mm | 25% | 1.4 m/s | 4 |
| 1992 | 26.5°C | 18.3°C | 10.2°C | 28.8°C | 6.5°C | 0 mm | 36% | 1.4 m/s | 3.8 |
| 1991 | 24.9°C | 17.6°C | 10.2°C | 28.1°C | 4.1°C | 17 mm | 44% | 1.4 m/s | 3.6 |
| 1990 | 25.5°C | 17.6°C | 9.7°C | 27.7°C | 5.6°C | 0 mm | 39% | 1.6 m/s | 3.8 |
| 1989 | 25.7°C | 17.5°C | 9.2°C | 28.4°C | 5.3°C | 3 mm | 30% | 1.3 m/s | 3.8 |
| 1988 | 25.9°C | 17.9°C | 9.8°C | 29.5°C | 6.6°C | 2 mm | 36% | 1.5 m/s | 3.6 |
| 1987 | 26.2°C | 17.7°C | 9.1°C | 31.5°C | 5.4°C | 3 mm | 21% | 1.4 m/s | 3.6 |
| 1986 | 24.6°C | 16.0°C | 7.4°C | 29.4°C | 2.9°C | 4 mm | 29% | 1.7 m/s | 3.9 |
| 1985 | 24.8°C | 17.2°C | 9.6°C | 28.9°C | 4.7°C | 12 mm | 53% | 1.7 m/s | 3.5 |
| 1984 | 25.9°C | 17.2°C | 8.6°C | 29.5°C | 4.0°C | 1 mm | 27% | 1.9 m/s | 3.7 |
| 1983 | 24.4°C | 16.6°C | 8.7°C | 27.3°C | 3.7°C | 3 mm | 40% | 1.4 m/s | — |
| 1982 | 25.0°C | 16.9°C | 8.9°C | 28.9°C | 5.8°C | 12 mm | 41% | 1.7 m/s | — |
| 1981 | 24.7°C | 16.6°C | 8.4°C | 27.3°C | 6.1°C | 3 mm | 40% | 1.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 25°C with lows near 9.1°C (mean 17.1°C), based on 45 years of NASA POWER data.
December averages 5 mm of rainfall in Deeg, one of the drier months. The wettest on record was 34 mm in 1997.
The hottest December reached 31.5°C in 1987. The coldest dipped to 0.6°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 0.6°C — but days and nights have moved in opposite directions. Overnight lows rose from 8.8°C to 8.9°C while daytime highs eased from 25°C to 23.7°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Deeg and one of the drier months, so plan for around 25°C daytime highs and 9.1°C at night.
Not quite — December is the 2nd coolest month in Deeg, averaging 17.1°C.
For December in Deeg, pack light layers you can adjust through the day, with typical highs of 25°C and lows of 9.1°C.
Relative humidity in December averages 39% — relatively dry.
Average wind speed in December is 1.5 m/s. The windiest December on record averaged 1.9 m/s (1984).
The wettest December on record was 1997 with 34 mm. On average, December sees 5 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 Deeg 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.
