December is one of the cooler months of the year in An Nimāş, with average highs near 29.3°C and lows around 17.1°C (mean 23.2°C). It is about average for rainfall, averaging 2 mm of rainfall and 56% relative humidity across the period.
December is one of the cooler months of the year in An Nimāş. Across 45 years of records, the warmest December in An Nimāş was 2023 — when the month averaged 24.2°C — while the coldest were 1982 and 1986 at 22.1°C. Typical December days reach 29.3°C with nights near 17.1°C. The long-term trend is warming, about 0.2°C per decade.
December is about average for rainfall in An Nimāş, averaging 2 mm of rainfall. The wettest December on record was 2001 with 24 mm, while the driest were 2019, 2023 and 2024, among others at 0 mm.
Relative humidity in An Nimāş during December averages 56%. The most humid December was 1982 at 66%, and the least humid was 2017 at 37%.
December receives about 4.8 kWh/m²/day of solar energy in An Nimāş. The sunniest Decembers were 2005, 2008 and 2017 at 5.2 kWh/m²/day, and the cloudiest was 1995 at 4.1.
Average wind speed in An Nimāş during December is 2.3 m/s. The windiest Decembers were 2004 and 2023 at 2.6 m/s, while the calmest were 2016, 2018 and 2020, among others at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 22.7°C | 23.2°C | 23.3°C | 23.4°C | 23.5°C | +0.8°C |
| Avg High | 28.7°C | 29.4°C | 29.3°C | 29.6°C | 29.7°C | +1°C |
| Avg Low | 16.7°C | 17.0°C | 17.3°C | 17.1°C | 17.3°C | +0.6°C |
| Avg Rain | 4 mm | 0 mm | 4 mm | 0 mm | 3 mm | -1 mm |
December temperatures in An Nimāş have risen by about 0.8°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 10.4°C (2004) to a record high of 33.6°C (2016).
Rainfall in December is about average for rainfall, averaging 2 mm, with a wettest year of 24 mm.
One of the best times to visit An Nimāş
December is one of the best times to visit An Nimāş. Expect days averaging 29.3°C and nights around 17.1°C (mean 23.2°C) — cooler than An Nimāş's yearly average — with low rainfall (2 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 | 28.6°C | 22.5°C | 16.4°C | 32.1°C | 10.9°C | 3 mm | 55% | 2.3 m/s | — |
| 2024 | 29.9°C | 23.6°C | 17.4°C | 33.2°C | 15.3°C | 0 mm | 56% | 2.2 m/s | 4.9 |
| 2023 🔥 | 30.8°C | 24.2°C | 17.7°C | 33.0°C | 13.4°C | 0 mm | 45% | 2.6 m/s | 5 |
| 2022 | 29.2°C | 23.4°C | 17.6°C | 31.5°C | 11.7°C | 12 mm | 55% | 2.2 m/s | 4.6 |
| 2021 | 29.9°C | 23.4°C | 16.9°C | 33.1°C | 14.1°C | 2 mm | 50% | 2.4 m/s | 4.9 |
| 2020 | 29.6°C | 23.6°C | 17.6°C | 31.1°C | 15.5°C | 1 mm | 59% | 2.1 m/s | 5 |
| 2019 | 29.4°C | 23.7°C | 18.0°C | 31.9°C | 15.4°C | 0 mm | 60% | 2.3 m/s | 4.7 |
| 2018 | 29.6°C | 23.9°C | 18.1°C | 31.3°C | 16.1°C | 1 mm | 60% | 2.1 m/s | 4.9 |
| 2017 | 30.1°C | 22.8°C | 15.5°C | 32.0°C | 12.5°C | 0 mm | 37% | 2.5 m/s | 5.2 |
| 2016 | 30.5°C | 24.1°C | 17.6°C | 33.6°C | 15.6°C | 0 mm | 56% | 2.1 m/s | 5 |
| 2015 | 28.8°C | 23.4°C | 18.1°C | 31.9°C | 14.0°C | 1 mm | 63% | 2.4 m/s | 4.4 |
| 2014 | 30.1°C | 23.6°C | 17.0°C | 32.8°C | 15.4°C | 0 mm | 49% | 2.2 m/s | 5 |
| 2013 | 28.9°C | 22.5°C | 16.1°C | 31.9°C | 14.0°C | 1 mm | 52% | 2.4 m/s | 4.9 |
| 2012 | 29.5°C | 23.8°C | 18.1°C | 31.5°C | 16.3°C | 1 mm | 62% | 2.2 m/s | 4.7 |
| 2011 | 29.8°C | 23.1°C | 16.4°C | 32.2°C | 13.7°C | 0 mm | 48% | 2.3 m/s | 5.1 |
| 2010 | 29.3°C | 22.7°C | 16.2°C | 31.2°C | 13.8°C | 0 mm | 46% | 2.3 m/s | 4.9 |
| 2009 | 29.4°C | 23.5°C | 17.7°C | 31.9°C | 15.0°C | 1 mm | 59% | 2.4 m/s | 4.8 |
| 2008 | 29.4°C | 22.8°C | 16.2°C | 32.0°C | 14.7°C | 0 mm | 50% | 2.3 m/s | 5.2 |
| 2007 | 30.1°C | 23.8°C | 17.6°C | 32.4°C | 15.9°C | 0 mm | 59% | 2.1 m/s | 5 |
| 2006 | 28.3°C | 23.0°C | 17.8°C | 31.5°C | 15.0°C | 1 mm | 66% | 2.4 m/s | 4.4 |
| 2005 | 30.3°C | 23.6°C | 16.9°C | 32.1°C | 14.9°C | 0 mm | 47% | 2.2 m/s | 5.2 |
| 2004 | 28.5°C | 22.7°C | 16.9°C | 30.5°C | 10.4°C | 8 mm | 56% | 2.6 m/s | 4.5 |
| 2003 | 29.7°C | 23.8°C | 17.8°C | 31.6°C | 15.9°C | 0 mm | 59% | 2.2 m/s | 4.9 |
| 2002 | 28.6°C | 23.0°C | 17.3°C | 32.0°C | 11.5°C | 1 mm | 60% | 2.2 m/s | 4.7 |
| 2001 🌧️ | 29.5°C | 23.6°C | 17.7°C | 32.2°C | 15.4°C | 24 mm | 61% | 2.1 m/s | 5 |
| 2000 | 28.9°C | 23.0°C | 17.0°C | 30.9°C | 13.7°C | 8 mm | 58% | 2.3 m/s | 4.8 |
| 1999 | 29.7°C | 23.2°C | 16.7°C | 32.0°C | 13.5°C | 0 mm | 51% | 2.3 m/s | 4.9 |
| 1998 | 30.6°C | 23.7°C | 16.9°C | 32.1°C | 13.8°C | 0 mm | 47% | 2.1 m/s | 5.1 |
| 1997 | 29.7°C | 23.9°C | 18.0°C | 31.8°C | 16.1°C | 0 mm | 63% | 2.3 m/s | 4.7 |
| 1996 | 29.4°C | 23.0°C | 16.7°C | 31.5°C | 14.8°C | 1 mm | 53% | 2.1 m/s | 5.1 |
| 1995 | 28.1°C | 22.9°C | 17.7°C | 31.0°C | 16.3°C | 1 mm | 66% | 2.4 m/s | 4.1 |
| 1994 | 28.2°C | 22.4°C | 16.6°C | 30.0°C | 14.2°C | 0 mm | 61% | 2.2 m/s | 4.8 |
| 1993 | 30.3°C | 23.6°C | 16.8°C | 32.4°C | 13.5°C | 0 mm | 49% | 2.2 m/s | 5.1 |
| 1992 | 28.3°C | 22.7°C | 17.2°C | 31.5°C | 12.5°C | 0 mm | 62% | 2.4 m/s | 4.7 |
| 1991 | 28.8°C | 22.9°C | 16.9°C | 30.7°C | 14.7°C | 0 mm | 63% | 2.2 m/s | 5 |
| 1990 | 30.5°C | 23.4°C | 16.3°C | 32.7°C | 14.2°C | 0 mm | 43% | 2.1 m/s | 5.1 |
| 1989 | 28.3°C | 22.9°C | 17.5°C | 31.0°C | 14.8°C | 4 mm | 61% | 2.3 m/s | 4.3 |
| 1988 | 29.6°C | 22.9°C | 16.1°C | 32.3°C | 13.8°C | 0 mm | 48% | 2.2 m/s | 4.7 |
| 1987 | 29.9°C | 23.6°C | 17.4°C | 31.8°C | 15.8°C | 0 mm | 55% | 2.2 m/s | 4.5 |
| 1986 | 27.8°C | 22.1°C | 16.4°C | 29.4°C | 11.0°C | 6 mm | 64% | 2.2 m/s | 4.2 |
| 1985 | 28.2°C | 22.2°C | 16.3°C | 29.6°C | 13.7°C | 8 mm | 56% | 2.3 m/s | 4.6 |
| 1984 | 28.7°C | 22.8°C | 17.0°C | 30.7°C | 14.6°C | 8 mm | 59% | 2.1 m/s | 4.6 |
| 1983 | 28.8°C | 22.6°C | 16.5°C | 31.0°C | 13.0°C | 0 mm | 55% | 2.2 m/s | — |
| 1982 ❄️ | 27.7°C | 22.1°C | 16.6°C | 30.5°C | 14.2°C | 9 mm | 66% | 2.3 m/s | — |
| 1981 | 29.7°C | 23.2°C | 16.8°C | 31.8°C | 15.0°C | 0 mm | 55% | 2.1 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 29.3°C with lows near 17.1°C (mean 23.2°C), based on 45 years of NASA POWER data.
December averages 2 mm of rainfall in An Nimāş, about average for rainfall. The wettest on record was 24 mm in 2001.
The hottest December reached 33.6°C in 2016. The coldest dipped to 10.4°C in 2004.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.8°C. Daytime highs moved from 28.6°C to 29.7°C and overnight lows from 16.6°C to 17.2°C over the same span.
December is one of the cooler months of the year in An Nimāş and about average for rainfall, so plan for around 29.3°C daytime highs and 17.1°C at night.
Not quite — December is the 2nd coolest month in An Nimāş, averaging 23.2°C.
For December in An Nimāş, pack light layers you can adjust through the day, with typical highs of 29.3°C and lows of 17.1°C.
Relative humidity in December averages 56% — moderately humid.
Average wind speed in December is 2.3 m/s. The windiest December on record averaged 2.6 m/s (2004).
The wettest December on record was 2001 with 24 mm. On average, December sees 2 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 An Nimāş 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.
