December is one of the cooler months of the year in Ra’s al Khafjī, with average highs near 20.1°C and lows around 17.4°C (mean 18.8°C). It is about average for rainfall, averaging 9 mm of rainfall and 63% relative humidity across the period.
December is one of the cooler months of the year in Ra’s al Khafjī. Across 45 years of records, the warmest December in Ra’s al Khafjī was 1998 — when the month averaged 21.4°C — while the coldest was 1982 at 15.5°C. Typical December days reach 20.1°C with nights near 17.4°C. The long-term trend is warming, about 0.3°C per decade.
December is about average for rainfall in Ra’s al Khafjī, averaging 9 mm of rainfall. The wettest December on record was 1995 with 63 mm, while the driest were 2014, 2017 and 2018, among others at 0 mm.
Relative humidity in Ra’s al Khafjī during December averages 63%. The most humid December was 2001 at 73%, and the least humid was 2010 at 54%.
December receives about 3 kWh/m²/day of solar energy in Ra’s al Khafjī. The sunniest Decembers were 1990, 1993 and 2011 at 3.5 kWh/m²/day, and the cloudiest was 2001 at 2.6.
Average wind speed in Ra’s al Khafjī during December is 4.5 m/s. The windiest December was 2013 at 5.3 m/s, while the calmest was 1981 at 3.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 18.9°C | 18.5°C | 18.7°C | 19.7°C | +1.6°C |
| Avg High | 19.4°C | 20.2°C | 19.9°C | 20.1°C | 21.1°C | +1.7°C |
| Avg Low | 16.8°C | 17.6°C | 17.2°C | 17.2°C | 18.3°C | +1.5°C |
| Avg Rain | 10 mm | 12 mm | 14 mm | 1 mm | 6 mm | -4 mm |
December temperatures in Ra’s al Khafjī have risen by about 1.9°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 9.4°C (2006) to a record high of 27.9°C (2025).
Rainfall in December is about average for rainfall, averaging 9 mm, with a wettest year of 63 mm.
One of the best times to visit Ra’s al Khafjī
December is one of the best times to visit Ra’s al Khafjī. Expect days averaging 20.1°C and nights around 17.4°C (mean 18.8°C) — cooler than Ra’s al Khafjī's yearly average — with low rainfall (9 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 | 21.2°C | 19.8°C | 18.4°C | 27.9°C | 13.2°C | 25 mm | 67% | 4.1 m/s | — |
| 2024 | 19.9°C | 18.4°C | 16.9°C | 24.6°C | 13.1°C | 1 mm | 59% | 4.8 m/s | 3 |
| 2023 | 22.4°C | 21.0°C | 19.6°C | 25.6°C | 17.6°C | 3 mm | 63% | 4 m/s | 3.1 |
| 2022 | 21.7°C | 20.5°C | 19.3°C | 27.4°C | 15.0°C | 2 mm | 65% | 4.6 m/s | 2.9 |
| 2021 | 21.2°C | 19.6°C | 18.0°C | 26.1°C | 13.4°C | 1 mm | 63% | 4.8 m/s | 2.8 |
| 2020 | 20.2°C | 18.9°C | 17.6°C | 23.7°C | 14.1°C | 3 mm | 64% | 4.8 m/s | 2.8 |
| 2019 | 21.2°C | 19.8°C | 18.4°C | 25.7°C | 16.5°C | 2 mm | 63% | 4.4 m/s | 3.1 |
| 2018 | 20.9°C | 19.8°C | 18.7°C | 24.8°C | 15.5°C | 0 mm | 65% | 4.3 m/s | 3 |
| 2017 | 20.8°C | 18.9°C | 17.1°C | 24.4°C | 14.7°C | 0 mm | 57% | 4.8 m/s | 3.3 |
| 2016 | 19.3°C | 17.9°C | 16.6°C | 25.0°C | 13.0°C | 2 mm | 63% | 5.2 m/s | 2.9 |
| 2015 | 18.8°C | 17.6°C | 16.4°C | 25.2°C | 12.5°C | 1 mm | 64% | 5 m/s | 2.8 |
| 2014 | 20.7°C | 19.2°C | 17.8°C | 22.8°C | 14.2°C | 0 mm | 62% | 4.3 m/s | 3.3 |
| 2013 | 19.3°C | 17.8°C | 16.2°C | 25.7°C | 12.5°C | 0 mm | 60% | 5.3 m/s | 3.2 |
| 2012 | 20.3°C | 19.1°C | 17.9°C | 26.2°C | 15.7°C | 0 mm | 66% | 4.4 m/s | 2.8 |
| 2011 | 18.4°C | 16.7°C | 15.0°C | 21.5°C | 13.1°C | 0 mm | 58% | 4.8 m/s | 3.5 |
| 2010 | 21.6°C | 19.9°C | 18.3°C | 25.0°C | 15.5°C | 0 mm | 54% | 4.2 m/s | 3.4 |
| 2009 | 20.4°C | 19.1°C | 17.9°C | 23.4°C | 16.4°C | 0 mm | 67% | 4.3 m/s | 2.9 |
| 2008 | 19.5°C | 18.1°C | 16.7°C | 22.2°C | 13.1°C | 0 mm | 57% | 4.7 m/s | 3.4 |
| 2007 | 20.1°C | 18.8°C | 17.4°C | 25.5°C | 12.1°C | 14 mm | 60% | 5.2 m/s | 3 |
| 2006 | 17.8°C | 16.3°C | 14.8°C | 23.1°C | 9.4°C | 10 mm | 62% | 4.9 m/s | 2.9 |
| 2005 | 21.7°C | 20.0°C | 18.4°C | 24.7°C | 13.5°C | 11 mm | 65% | 4.2 m/s | 3.1 |
| 2004 | 18.5°C | 17.1°C | 15.7°C | 22.2°C | 11.3°C | 5 mm | 63% | 5 m/s | 2.8 |
| 2003 | 19.8°C | 18.5°C | 17.1°C | 23.1°C | 14.2°C | 6 mm | 67% | 5 m/s | 2.9 |
| 2002 | 19.6°C | 18.4°C | 17.2°C | 25.7°C | 12.9°C | 4 mm | 65% | 4.5 m/s | 2.7 |
| 2001 | 21.5°C | 20.4°C | 19.3°C | 25.9°C | 15.5°C | 51 mm | 73% | 4.5 m/s | 2.6 |
| 2000 | 19.8°C | 18.6°C | 17.4°C | 25.5°C | 13.5°C | 34 mm | 68% | 4.7 m/s | 2.9 |
| 1999 | 20.5°C | 19.0°C | 17.5°C | 23.4°C | 15.5°C | 1 mm | 59% | 4.1 m/s | 3.3 |
| 1998 🔥 | 22.8°C | 21.4°C | 19.9°C | 26.5°C | 17.3°C | 0 mm | 59% | 3.7 m/s | 3.3 |
| 1997 | 19.8°C | 18.7°C | 17.5°C | 22.7°C | 14.7°C | 10 mm | 67% | 4.6 m/s | 3 |
| 1996 | 21.7°C | 20.3°C | 18.9°C | 23.9°C | 16.1°C | 2 mm | 63% | 3.9 m/s | 3.4 |
| 1995 🌧️ | 18.2°C | 17.1°C | 15.9°C | 21.5°C | 13.5°C | 63 mm | 68% | 4.2 m/s | 2.7 |
| 1994 | 18.1°C | 16.8°C | 15.4°C | 25.2°C | 10.8°C | 16 mm | 64% | 5 m/s | 3.1 |
| 1993 | 20.5°C | 19.2°C | 17.9°C | 24.0°C | 15.5°C | 0 mm | 64% | 3.8 m/s | 3.5 |
| 1992 | 18.9°C | 17.7°C | 16.4°C | 23.8°C | 9.8°C | 17 mm | 67% | 5 m/s | 2.7 |
| 1991 | 20.1°C | 18.8°C | 17.6°C | 25.4°C | 13.3°C | 7 mm | 65% | 5.1 m/s | 3 |
| 1990 | 21.8°C | 20.3°C | 18.8°C | 25.5°C | 13.3°C | 0 mm | 58% | 4.1 m/s | 3.5 |
| 1989 | 19.2°C | 17.9°C | 16.5°C | 25.8°C | 14.6°C | 24 mm | 64% | 4.6 m/s | 3.3 |
| 1988 | 20.2°C | 18.9°C | 17.7°C | 23.8°C | 11.4°C | 6 mm | 61% | 4 m/s | 3 |
| 1987 | 20.4°C | 19.0°C | 17.6°C | 23.5°C | 12.5°C | 12 mm | 63% | 4.4 m/s | 2.9 |
| 1986 | 18.1°C | 16.9°C | 15.8°C | 21.2°C | 11.9°C | 21 mm | 61% | 4.5 m/s | 3 |
| 1985 | 19.5°C | 18.3°C | 17.1°C | 25.8°C | 13.0°C | 8 mm | 63% | 4.2 m/s | 3 |
| 1984 | 18.1°C | 16.9°C | 15.7°C | 24.5°C | 12.5°C | 8 mm | 65% | 4.3 m/s | 3 |
| 1983 | 20.6°C | 19.1°C | 17.7°C | 25.7°C | 13.7°C | 0 mm | 61% | 4.2 m/s | — |
| 1982 ❄️ | 16.9°C | 15.5°C | 14.1°C | 21.1°C | 11.0°C | 10 mm | 65% | 4.4 m/s | — |
| 1981 | 21.5°C | 20.1°C | 18.8°C | 23.3°C | 15.3°C | 2 mm | 61% | 3.6 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 20.1°C with lows near 17.4°C (mean 18.8°C), based on 45 years of NASA POWER data.
December averages 9 mm of rainfall in Ra’s al Khafjī, about average for rainfall. The wettest on record was 63 mm in 1995.
The hottest December reached 27.9°C in 2025. The coldest dipped to 9.4°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1.9°C. Daytime highs moved from 19.3°C to 21.3°C and overnight lows from 16.7°C to 18.4°C over the same span.
December is one of the cooler months of the year in Ra’s al Khafjī and about average for rainfall, so plan for around 20.1°C daytime highs and 17.4°C at night.
Not quite — December is the 3rd coolest month in Ra’s al Khafjī, averaging 18.8°C.
For December in Ra’s al Khafjī, pack light layers you can adjust through the day, with typical highs of 20.1°C and lows of 17.4°C.
Relative humidity in December averages 63% — moderately humid.
Average wind speed in December is 4.5 m/s. The windiest December on record averaged 5.3 m/s (2013).
The wettest December on record was 1995 with 63 mm. On average, December sees 9 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 Ra’s al Khafjī 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.
