December is one of the cooler months of the year in Mecca, with average highs near 29.7°C and lows around 17.3°C (mean 23.5°C). It is about average for rainfall, averaging 6 mm of rainfall and 50% relative humidity across the period.
December is one of the cooler months of the year in Mecca. Across 45 years of records, the warmest December in Mecca was 1998 — when the month averaged 25.1°C — while the coldest were 1982, 1986 and 1992 at 21.5°C. Typical December days reach 29.7°C with nights near 17.3°C. The long-term trend is warming, about 0.3°C per decade.
December is about average for rainfall in Mecca, averaging 6 mm of rainfall. The wettest December on record was 2022 with 59 mm, while the driest were 2008, 2011 and 2017, among others at 0 mm.
Relative humidity in Mecca during December averages 50%. The most humid December was 2022 at 61%, and the least humid was 2017 at 33%.
December receives about 4.3 kWh/m²/day of solar energy in Mecca. The sunniest December was 1990 at 4.7 kWh/m²/day, and the cloudiest was 2015 at 3.9.
Average wind speed in Mecca during December is 2.7 m/s. The windiest Decembers were 2004 and 2015 at 3.1 m/s, while the calmest were 1981, 1996 and 1998 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.8°C | 23.5°C | 23.5°C | 24.0°C | 23.8°C | +1°C |
| Avg High | 29.1°C | 29.7°C | 29.7°C | 30.3°C | 29.8°C | +0.7°C |
| Avg Low | 16.6°C | 17.3°C | 17.3°C | 17.7°C | 17.9°C | +1.3°C |
| Avg Rain | 3 mm | 3 mm | 1 mm | 6 mm | 20 mm | +17 mm |
December temperatures in Mecca have risen by about 1°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 9.1°C (1986) to a record high of 35.4°C (2013).
Rainfall in December is about average for rainfall, averaging 6 mm, with a wettest year of 59 mm.
One of the best times to visit Mecca
December is one of the best times to visit Mecca. Expect days averaging 29.7°C and nights around 17.3°C (mean 23.5°C) — cooler than Mecca's yearly average — with low rainfall (6 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 | 28.0°C | 22.2°C | 16.3°C | 33.2°C | 9.3°C | 34 mm | 57% | 2.5 m/s | — |
| 2024 | 30.4°C | 24.4°C | 18.4°C | 34.8°C | 14.1°C | 1 mm | 48% | 2.6 m/s | 4.3 |
| 2023 | 31.0°C | 25.0°C | 18.9°C | 34.5°C | 15.5°C | 23 mm | 48% | 3 m/s | 4.3 |
| 2022 🌧️ | 28.6°C | 22.9°C | 17.3°C | 32.2°C | 11.5°C | 59 mm | 61% | 2.6 m/s | 4.2 |
| 2021 | 30.5°C | 24.3°C | 18.1°C | 34.5°C | 15.1°C | 4 mm | 48% | 2.6 m/s | 4.2 |
| 2020 | 30.4°C | 24.3°C | 18.2°C | 34.0°C | 14.7°C | 1 mm | 50% | 2.6 m/s | 4.3 |
| 2019 | 30.2°C | 24.1°C | 17.9°C | 33.4°C | 13.4°C | 0 mm | 49% | 2.7 m/s | 4.3 |
| 2018 | 29.6°C | 23.8°C | 18.0°C | 33.4°C | 12.7°C | 6 mm | 56% | 2.5 m/s | 4.1 |
| 2017 | 31.9°C | 24.7°C | 17.4°C | 34.3°C | 14.8°C | 0 mm | 33% | 3 m/s | 4.6 |
| 2016 | 30.7°C | 24.6°C | 18.5°C | 34.1°C | 15.5°C | 1 mm | 55% | 2.6 m/s | 4.4 |
| 2015 | 28.4°C | 22.6°C | 16.8°C | 33.1°C | 10.6°C | 3 mm | 53% | 3.1 m/s | 3.9 |
| 2014 | 31.1°C | 24.8°C | 18.5°C | 35.2°C | 16.0°C | 0 mm | 47% | 2.7 m/s | 4.5 |
| 2013 | 29.8°C | 23.2°C | 16.6°C | 35.4°C | 12.0°C | 0 mm | 45% | 2.9 m/s | 4.4 |
| 2012 | 29.6°C | 23.7°C | 17.9°C | 33.1°C | 10.3°C | 13 mm | 57% | 2.7 m/s | 4.2 |
| 2011 | 30.8°C | 24.2°C | 17.6°C | 33.0°C | 14.1°C | 0 mm | 43% | 2.6 m/s | 4.5 |
| 2010 | 30.4°C | 23.8°C | 17.3°C | 33.5°C | 12.6°C | 38 mm | 41% | 2.8 m/s | 4.4 |
| 2009 | 28.9°C | 23.0°C | 17.2°C | 33.1°C | 13.1°C | 5 mm | 58% | 2.6 m/s | 4.2 |
| 2008 | 30.7°C | 23.9°C | 17.2°C | 33.2°C | 15.6°C | 0 mm | 42% | 2.9 m/s | 4.6 |
| 2007 | 31.0°C | 24.6°C | 18.2°C | 35.0°C | 14.1°C | 0 mm | 52% | 2.5 m/s | 4.5 |
| 2006 | 28.2°C | 22.0°C | 15.7°C | 31.1°C | 10.6°C | 0 mm | 51% | 2.8 m/s | 4.4 |
| 2005 | 31.6°C | 25.0°C | 18.4°C | 34.3°C | 16.5°C | 0 mm | 44% | 2.7 m/s | 4.4 |
| 2004 | 28.9°C | 22.8°C | 16.7°C | 32.5°C | 9.9°C | 2 mm | 48% | 3.1 m/s | 4.3 |
| 2003 | 30.0°C | 23.8°C | 17.7°C | 33.9°C | 12.7°C | 0 mm | 55% | 2.5 m/s | 4.5 |
| 2002 | 27.7°C | 21.9°C | 16.0°C | 31.5°C | 10.7°C | 0 mm | 58% | 2.5 m/s | 4.5 |
| 2001 | 30.8°C | 24.9°C | 18.9°C | 34.0°C | 17.0°C | 5 mm | 55% | 2.5 m/s | 4.2 |
| 2000 | 29.5°C | 23.1°C | 16.7°C | 32.9°C | 10.1°C | 0 mm | 50% | 2.8 m/s | 4.4 |
| 1999 | 30.7°C | 24.3°C | 18.0°C | 33.2°C | 15.0°C | 3 mm | 42% | 2.7 m/s | 4.5 |
| 1998 🔥 | 31.9°C | 25.1°C | 18.3°C | 34.5°C | 16.6°C | 0 mm | 43% | 2.4 m/s | 4.6 |
| 1997 | 29.7°C | 23.9°C | 18.1°C | 32.6°C | 13.8°C | 4 mm | 55% | 2.9 m/s | 4.1 |
| 1996 | 30.2°C | 24.0°C | 17.8°C | 32.5°C | 14.2°C | 1 mm | 50% | 2.4 m/s | 4.4 |
| 1995 | 28.3°C | 22.6°C | 17.0°C | 31.6°C | 12.2°C | 0 mm | 53% | 2.6 m/s | 4 |
| 1994 | 28.3°C | 22.3°C | 16.4°C | 31.5°C | 10.0°C | 0 mm | 53% | 2.7 m/s | 4 |
| 1993 | 30.8°C | 24.2°C | 17.6°C | 34.3°C | 14.1°C | 19 mm | 48% | 2.7 m/s | 4.5 |
| 1992 | 27.6°C | 21.5°C | 15.5°C | 34.4°C | 10.2°C | 0 mm | 55% | 2.6 m/s | 4.1 |
| 1991 | 27.9°C | 21.9°C | 15.8°C | 31.7°C | 12.2°C | 1 mm | 52% | 2.5 m/s | 4.2 |
| 1990 | 32.0°C | 25.0°C | 18.0°C | 33.9°C | 16.9°C | 0 mm | 42% | 2.6 m/s | 4.7 |
| 1989 | 28.8°C | 22.8°C | 16.8°C | 31.4°C | 13.0°C | 2 mm | 51% | 2.9 m/s | 4.2 |
| 1988 | 30.1°C | 23.6°C | 17.2°C | 33.8°C | 11.2°C | 9 mm | 47% | 2.7 m/s | 4.1 |
| 1987 | 29.9°C | 23.5°C | 17.2°C | 32.8°C | 12.1°C | 0 mm | 47% | 2.8 m/s | 4.1 |
| 1986 | 27.7°C | 21.5°C | 15.2°C | 30.4°C | 9.1°C | 1 mm | 51% | 2.8 m/s | 4.2 |
| 1985 | 28.4°C | 22.3°C | 16.1°C | 31.5°C | 11.3°C | 6 mm | 47% | 2.9 m/s | 4.3 |
| 1984 | 28.8°C | 23.0°C | 17.2°C | 32.0°C | 13.3°C | 3 mm | 52% | 2.6 m/s | 4.1 |
| 1983 | 29.6°C | 23.1°C | 16.7°C | 32.9°C | 10.0°C | 0 mm | 45% | 2.7 m/s | — |
| 1982 ❄️ | 27.8°C | 21.5°C | 15.1°C | 31.7°C | 11.0°C | 7 mm | 52% | 2.6 m/s | — |
| 1981 | 30.6°C | 24.2°C | 17.8°C | 32.8°C | 13.9°C | 2 mm | 53% | 2.4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 29.7°C with lows near 17.3°C (mean 23.5°C), based on 45 years of NASA POWER data.
December averages 6 mm of rainfall in Mecca, about average for rainfall. The wettest on record was 59 mm in 2022.
The hottest December reached 35.4°C in 2013. The coldest dipped to 9.1°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1°C. Daytime highs moved from 29°C to 29.7°C and overnight lows from 16.6°C to 17.8°C over the same span.
December is one of the cooler months of the year in Mecca and about average for rainfall, so plan for around 29.7°C daytime highs and 17.3°C at night.
Not quite — December is the 3rd coolest month in Mecca, averaging 23.5°C.
For December in Mecca, pack light layers you can adjust through the day, with typical highs of 29.7°C and lows of 17.3°C.
Relative humidity in December averages 50% — relatively dry.
Average wind speed in December is 2.7 m/s. The windiest December on record averaged 3.1 m/s (2004).
The wettest December on record was 2022 with 59 mm. On average, December sees 6 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 Mecca 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.
