December is one of the cooler months of the year in Ad Dammām, with average highs near 23.1°C and lows around 15.7°C (mean 19.4°C). It is about average for rainfall, averaging 9 mm of rainfall and 62% relative humidity across the period.
December is one of the cooler months of the year in Ad Dammām. Across 45 years of records, the warmest December in Ad Dammām was 2001 — when the month averaged 22.4°C — while the coldest was 1982 at 15.7°C. Typical December days reach 23.1°C with nights near 15.7°C. The long-term trend is warming, about 0.3°C per decade.
December is about average for rainfall in Ad Dammām, averaging 9 mm of rainfall. The wettest December on record was 2006 with 61 mm, while the driest were 2018, 2020 and 2024, among others at 0 mm.
Relative humidity in Ad Dammām during December averages 62%. The most humid December was 1995 at 71%, and the least humid was 2017 at 54%.
December receives about 3.2 kWh/m²/day of solar energy in Ad Dammām. The sunniest December was 1999 at 3.8 kWh/m²/day, and the cloudiest was 1995 at 2.2.
Average wind speed in Ad Dammām during December is 3.7 m/s. The windiest December was 2006 at 4.4 m/s, while the calmest was 1981 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.5°C | 19.8°C | 19.3°C | 19.2°C | 20.4°C | +1.9°C |
| Avg High | 22.1°C | 23.4°C | 22.9°C | 23.2°C | 24.1°C | +2°C |
| Avg Low | 14.9°C | 16.1°C | 15.7°C | 15.2°C | 16.7°C | +1.8°C |
| Avg Rain | 11 mm | 9 mm | 15 mm | 5 mm | 6 mm | -6 mm |
December temperatures in Ad Dammām have risen by about 2.1°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 7.6°C (2006) to a record high of 30.3°C (2016).
Rainfall in December is about average for rainfall, averaging 9 mm, with a wettest year of 61 mm.
One of the best times to visit Ad Dammām
December is one of the best times to visit Ad Dammām. Expect days averaging 23.1°C and nights around 15.7°C (mean 19.4°C) — cooler than Ad Dammām'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 | 24.2°C | 20.6°C | 17.1°C | 29.0°C | 10.7°C | 17 mm | 64% | 3.3 m/s | — |
| 2024 | 22.9°C | 18.9°C | 14.9°C | 27.4°C | 10.1°C | 0 mm | 59% | 3.7 m/s | 3.4 |
| 2023 | 25.3°C | 21.3°C | 17.3°C | 28.4°C | 14.6°C | 1 mm | 62% | 3.1 m/s | 3.3 |
| 2022 | 24.7°C | 21.1°C | 17.6°C | 30.3°C | 12.3°C | 4 mm | 64% | 3.5 m/s | 3.2 |
| 2021 | 24.0°C | 20.2°C | 16.4°C | 28.1°C | 14.3°C | 13 mm | 60% | 3.9 m/s | 3.1 |
| 2020 | 23.6°C | 20.1°C | 16.7°C | 28.4°C | 12.7°C | 0 mm | 63% | 3.9 m/s | 3.3 |
| 2019 | 24.0°C | 20.4°C | 16.9°C | 28.2°C | 13.1°C | 17 mm | 63% | 3.4 m/s | 3.2 |
| 2018 | 24.3°C | 20.7°C | 17.0°C | 28.4°C | 13.0°C | 0 mm | 65% | 3.2 m/s | 3.3 |
| 2017 | 23.5°C | 18.9°C | 14.2°C | 29.3°C | 11.4°C | 0 mm | 54% | 4 m/s | 3.4 |
| 2016 | 23.4°C | 19.5°C | 15.5°C | 30.3°C | 11.3°C | 0 mm | 63% | 4.3 m/s | 3.5 |
| 2015 | 21.5°C | 18.3°C | 15.0°C | 26.3°C | 10.3°C | 26 mm | 67% | 3.9 m/s | 3.1 |
| 2014 | 23.7°C | 19.5°C | 15.3°C | 26.3°C | 12.6°C | 0 mm | 62% | 3.7 m/s | 3.6 |
| 2013 | 22.2°C | 18.3°C | 14.3°C | 26.8°C | 10.0°C | 2 mm | 61% | 4.2 m/s | 3.4 |
| 2012 | 23.3°C | 20.0°C | 16.6°C | 29.8°C | 13.2°C | 7 mm | 64% | 3.5 m/s | 3 |
| 2011 | 21.3°C | 16.9°C | 12.4°C | 25.6°C | 10.5°C | 0 mm | 60% | 4 m/s | 3.7 |
| 2010 | 24.4°C | 19.7°C | 15.0°C | 28.7°C | 12.7°C | 0 mm | 57% | 3.6 m/s | 3.6 |
| 2009 | 23.1°C | 19.7°C | 16.3°C | 26.5°C | 13.7°C | 26 mm | 67% | 3.5 m/s | 3 |
| 2008 | 22.4°C | 18.0°C | 13.6°C | 24.7°C | 9.9°C | 1 mm | 56% | 3.7 m/s | 3.7 |
| 2007 | 23.4°C | 19.6°C | 15.9°C | 28.5°C | 9.8°C | 0 mm | 59% | 4 m/s | 3.4 |
| 2006 🌧️ | 19.2°C | 16.0°C | 12.7°C | 23.3°C | 7.6°C | 61 mm | 63% | 4.4 m/s | 3.1 |
| 2005 | 25.1°C | 20.8°C | 16.5°C | 28.9°C | 11.4°C | 0 mm | 60% | 3.4 m/s | 3.4 |
| 2004 | 21.3°C | 18.0°C | 14.8°C | 27.1°C | 9.3°C | 21 mm | 63% | 4.3 m/s | 3 |
| 2003 | 23.1°C | 19.6°C | 16.0°C | 26.0°C | 13.0°C | 30 mm | 66% | 3.7 m/s | 3.2 |
| 2002 | 22.8°C | 19.5°C | 16.2°C | 30.1°C | 10.8°C | 5 mm | 64% | 3.7 m/s | 3.1 |
| 2001 🔥 | 26.0°C | 22.4°C | 18.9°C | 29.7°C | 16.1°C | 0 mm | 68% | 3.5 m/s | 3.2 |
| 2000 | 23.0°C | 19.5°C | 16.0°C | 29.0°C | 10.8°C | 7 mm | 66% | 3.7 m/s | 3.3 |
| 1999 | 23.9°C | 20.0°C | 16.1°C | 27.1°C | 13.5°C | 0 mm | 62% | 3.5 m/s | 3.8 |
| 1998 | 26.8°C | 22.2°C | 17.5°C | 29.4°C | 13.3°C | 0 mm | 60% | 2.8 m/s | 3.7 |
| 1997 | 22.5°C | 19.6°C | 16.7°C | 26.3°C | 10.8°C | 3 mm | 64% | 3.7 m/s | 2.8 |
| 1996 | 24.4°C | 20.4°C | 16.4°C | 27.1°C | 13.5°C | 0 mm | 63% | 2.9 m/s | 3.5 |
| 1995 | 20.9°C | 18.4°C | 15.8°C | 26.6°C | 11.4°C | 42 mm | 71% | 3.6 m/s | 2.2 |
| 1994 | 21.6°C | 18.1°C | 14.7°C | 29.8°C | 9.2°C | 1 mm | 61% | 4.3 m/s | 3.1 |
| 1993 | 23.9°C | 19.8°C | 15.8°C | 27.1°C | 12.0°C | 0 mm | 64% | 3 m/s | 3.5 |
| 1992 | 22.0°C | 18.9°C | 15.8°C | 28.3°C | 11.0°C | 23 mm | 66% | 4.1 m/s | 2.6 |
| 1991 | 23.0°C | 19.6°C | 16.2°C | 28.5°C | 10.3°C | 17 mm | 64% | 4 m/s | 3 |
| 1990 | 25.2°C | 20.8°C | 16.4°C | 28.5°C | 11.1°C | 0 mm | 58% | 3.3 m/s | 3.6 |
| 1989 | 21.8°C | 18.2°C | 14.7°C | 29.3°C | 11.9°C | 15 mm | 63% | 4.1 m/s | 3.1 |
| 1988 | 23.6°C | 19.9°C | 16.1°C | 27.6°C | 10.3°C | 3 mm | 60% | 3.4 m/s | 3.2 |
| 1987 | 23.6°C | 19.9°C | 16.3°C | 28.0°C | 11.2°C | 0 mm | 59% | 3.8 m/s | 3.1 |
| 1986 | 21.1°C | 17.4°C | 13.8°C | 26.3°C | 8.5°C | 24 mm | 63% | 3.8 m/s | 3 |
| 1985 | 22.2°C | 18.8°C | 15.3°C | 28.6°C | 10.9°C | 21 mm | 64% | 3.6 m/s | 2.9 |
| 1984 | 20.8°C | 17.8°C | 14.9°C | 26.1°C | 10.9°C | 18 mm | 64% | 3.6 m/s | 3 |
| 1983 | 22.7°C | 18.9°C | 15.0°C | 27.5°C | 11.2°C | 1 mm | 58% | 3.5 m/s | — |
| 1982 ❄️ | 19.1°C | 15.7°C | 12.3°C | 23.4°C | 9.4°C | 21 mm | 63% | 3.7 m/s | — |
| 1981 | 24.2°C | 20.1°C | 15.9°C | 27.6°C | 13.5°C | 0 mm | 58% | 2.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 23.1°C with lows near 15.7°C (mean 19.4°C), based on 45 years of NASA POWER data.
December averages 9 mm of rainfall in Ad Dammām, about average for rainfall. The wettest on record was 61 mm in 2006.
The hottest December reached 30.3°C in 2016. The coldest dipped to 7.6°C in 2006.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 2.1°C. Daytime highs moved from 21.8°C to 24.2°C and overnight lows from 14.7°C to 16.7°C over the same span.
December is one of the cooler months of the year in Ad Dammām and about average for rainfall, so plan for around 23.1°C daytime highs and 15.7°C at night.
Not quite — December is the 3rd coolest month in Ad Dammām, averaging 19.4°C.
For December in Ad Dammām, pack light layers you can adjust through the day, with typical highs of 23.1°C and lows of 15.7°C.
Relative humidity in December averages 62% — moderately humid.
Average wind speed in December is 3.7 m/s. The windiest December on record averaged 4.4 m/s (2006).
The wettest December on record was 2006 with 61 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 Ad Dammām 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.
