January is one of the cooler months of the year in Ar Rass, with average highs near 20.8°C and lows around 6.4°C (mean 13.6°C). It is about average for rainfall, averaging 10 mm of rainfall and 44% relative humidity across the period.
January is one of the cooler months of the year in Ar Rass. Across 45 years of records, the warmest January in Ar Rass was 2019 — when the month averaged 16.7°C — while the coldest was 1992 at 9.2°C. Typical January days reach 20.8°C with nights near 6.4°C. The long-term trend is warming, about 0.2°C per decade.
January is about average for rainfall in Ar Rass, averaging 10 mm of rainfall. The wettest January on record was 1985 with 127 mm, while the driest were 2019, 2020 and 2024, among others at 0 mm.
Relative humidity in Ar Rass during January averages 44%. The most humid January was 2023 at 65%, and the least humid was 2015 at 32%.
January receives about 4.3 kWh/m²/day of solar energy in Ar Rass. The sunniest January was 2018 at 4.8 kWh/m²/day, and the cloudiest were 1985 and 2023 at 3.6.
Average wind speed in Ar Rass during January is 2.7 m/s. The windiest January was 1983 at 3.4 m/s, while the calmest was 2009 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.5°C | 13.1°C | 13.1°C | 14.5°C | 14.0°C | +0.5°C |
| Avg High | 20.9°C | 20.0°C | 20.3°C | 21.8°C | 20.9°C | 0°C |
| Avg Low | 6.2°C | 6.2°C | 5.8°C | 7.1°C | 7.0°C | +0.8°C |
| Avg Rain | 22 mm | 8 mm | 2 mm | 1 mm | 20 mm | -2 mm |
January temperatures in Ar Rass have stayed relatively stable across the record.
January has ranged from a record low of -5.5°C (2008) to a record high of 32.2°C (2006).
Rainfall in January is about average for rainfall, averaging 10 mm, with a wettest year of 127 mm.
A good time to visit Ar Rass
January is a good time to visit Ar Rass, with days averaging 20.8°C and nights around 6.4°C (mean 13.6°C, cooler than Ar Rass's yearly average) and low rainfall. November and March are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.0°C | 12.3°C | 5.5°C | 25.2°C | 0.8°C | 17 mm | 49% | 2.5 m/s | 4.1 |
| 2024 | 23.4°C | 16.5°C | 9.5°C | 28.6°C | 5.5°C | 0 mm | 50% | 2.6 m/s | 4.3 |
| 2023 | 19.9°C | 13.9°C | 7.8°C | 28.2°C | 2.9°C | 87 mm | 65% | 2.8 m/s | 3.6 |
| 2022 | 21.5°C | 14.2°C | 7.0°C | 28.9°C | -1.3°C | 3 mm | 42% | 2.7 m/s | 4.3 |
| 2021 | 21.8°C | 14.7°C | 7.6°C | 27.9°C | 0.6°C | 11 mm | 45% | 2.6 m/s | 4.4 |
| 2020 | 19.8°C | 12.2°C | 4.6°C | 26.5°C | -1.3°C | 0 mm | 38% | 2.6 m/s | 4.7 |
| 2019 🔥 | 23.6°C | 16.7°C | 9.7°C | 29.4°C | 2.4°C | 0 mm | 43% | 3 m/s | 3.7 |
| 2018 | 20.5°C | 12.8°C | 5.1°C | 26.0°C | 1.7°C | 0 mm | 36% | 2.4 m/s | 4.8 |
| 2017 | 21.3°C | 13.9°C | 6.5°C | 26.5°C | 1.2°C | 0 mm | 45% | 2.7 m/s | 4.5 |
| 2016 | 20.9°C | 14.0°C | 7.1°C | 28.0°C | -2.6°C | 0 mm | 44% | 2.7 m/s | 4.4 |
| 2015 | 22.0°C | 13.7°C | 5.4°C | 30.8°C | -2.5°C | 0 mm | 32% | 2.6 m/s | 4.7 |
| 2014 | 21.5°C | 14.4°C | 7.3°C | 29.6°C | 1.5°C | 0 mm | 47% | 2.9 m/s | 4.3 |
| 2013 | 21.8°C | 14.6°C | 7.5°C | 29.1°C | -0.2°C | 0 mm | 37% | 3 m/s | 4.3 |
| 2012 | 21.8°C | 14.2°C | 6.5°C | 27.7°C | -1.4°C | 0 mm | 36% | 2.8 m/s | 4.5 |
| 2011 | 20.6°C | 14.2°C | 7.9°C | 27.3°C | 2.6°C | 14 mm | 50% | 2.9 m/s | 4 |
| 2010 | 23.7°C | 16.0°C | 8.4°C | 30.4°C | 3.7°C | 0 mm | 35% | 2.7 m/s | 4.6 |
| 2009 | 20.3°C | 12.6°C | 5.0°C | 28.8°C | -3.0°C | 0 mm | 36% | 2.3 m/s | 4.5 |
| 2008 | 18.0°C | 11.3°C | 4.7°C | 28.4°C | -5.5°C | 3 mm | 43% | 2.6 m/s | 4 |
| 2007 | 18.6°C | 11.5°C | 4.3°C | 26.5°C | -3.4°C | 1 mm | 47% | 2.7 m/s | 4.3 |
| 2006 | 21.5°C | 14.5°C | 7.4°C | 32.2°C | 1.6°C | 7 mm | 44% | 2.7 m/s | 4.2 |
| 2005 | 20.3°C | 13.0°C | 5.7°C | 26.8°C | 0.1°C | 1 mm | 41% | 2.8 m/s | 4.4 |
| 2004 | 22.8°C | 16.1°C | 9.4°C | 29.0°C | 4.7°C | 10 mm | 53% | 2.5 m/s | 4 |
| 2003 | 20.8°C | 13.2°C | 5.6°C | 27.2°C | 0.2°C | 1 mm | 40% | 2.5 m/s | 4.4 |
| 2002 | 20.0°C | 12.8°C | 5.6°C | 26.2°C | 0.4°C | 0 mm | 40% | 2.8 m/s | 4.4 |
| 2001 | 20.2°C | 12.3°C | 4.4°C | 25.2°C | -1.0°C | 1 mm | 38% | 2.6 m/s | 4.7 |
| 2000 | 20.8°C | 13.4°C | 6.1°C | 27.9°C | 0.6°C | 0 mm | 43% | 2.9 m/s | 4.1 |
| 1999 | 21.1°C | 14.2°C | 7.3°C | 29.6°C | 1.9°C | 16 mm | 46% | 2.5 m/s | 4.4 |
| 1998 | 19.0°C | 12.2°C | 5.5°C | 25.4°C | -0.4°C | 18 mm | 54% | 2.8 m/s | 4.1 |
| 1997 | 21.1°C | 13.9°C | 6.6°C | 28.0°C | 0.9°C | 0 mm | 38% | 2.8 m/s | 4.4 |
| 1996 | 21.0°C | 14.3°C | 7.6°C | 26.0°C | 2.0°C | 4 mm | 54% | 2.6 m/s | 4.4 |
| 1995 | 22.2°C | 14.8°C | 7.4°C | 27.6°C | 2.7°C | 0 mm | 45% | 2.7 m/s | 4.5 |
| 1994 | 22.9°C | 15.7°C | 8.5°C | 32.1°C | 4.1°C | 1 mm | 39% | 2.8 m/s | 4.5 |
| 1993 | 18.8°C | 12.2°C | 5.6°C | 30.9°C | -1.3°C | 11 mm | 51% | 2.6 m/s | 4 |
| 1992 ❄️ | 16.2°C | 9.2°C | 2.2°C | 25.0°C | -4.1°C | 3 mm | 44% | 2.7 m/s | 4.1 |
| 1991 | 19.8°C | 13.0°C | 6.2°C | 27.0°C | -2.1°C | 25 mm | 52% | 2.8 m/s | 3.9 |
| 1990 | 18.2°C | 11.6°C | 5.0°C | 26.5°C | -0.7°C | 7 mm | 47% | 2.6 m/s | 4.1 |
| 1989 | 17.8°C | 10.3°C | 2.7°C | 26.0°C | -4.5°C | 0 mm | 35% | 2.7 m/s | 4.2 |
| 1988 | 20.3°C | 13.0°C | 5.8°C | 28.1°C | 0.5°C | 12 mm | 44% | 2.7 m/s | 4 |
| 1987 | 22.4°C | 14.1°C | 5.8°C | 28.0°C | 1.8°C | 0 mm | 39% | 2.7 m/s | 4.2 |
| 1986 | 21.3°C | 13.4°C | 5.6°C | 25.7°C | 0.0°C | 3 mm | 40% | 2.8 m/s | 4.1 |
| 1985 🌧️ | 23.1°C | 16.2°C | 9.3°C | 29.4°C | 5.0°C | 127 mm | 53% | 3.1 m/s | 3.6 |
| 1984 | 21.3°C | 13.6°C | 5.9°C | 27.6°C | 1.6°C | 1 mm | 42% | 2.9 m/s | 4 |
| 1983 | 18.6°C | 11.5°C | 4.4°C | 26.6°C | 0.1°C | 27 mm | 50% | 3.4 m/s | — |
| 1982 | 21.5°C | 14.4°C | 7.3°C | 29.1°C | -0.1°C | 17 mm | 47% | 2.8 m/s | — |
| 1981 | 22.2°C | 15.4°C | 8.6°C | 28.9°C | 1.7°C | 10 mm | 45% | 3.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 20.8°C with lows near 6.4°C (mean 13.6°C), based on 45 years of NASA POWER data.
January averages 10 mm of rainfall in Ar Rass, about average for rainfall. The wettest on record was 127 mm in 1985.
The hottest January reached 32.2°C in 2006. The coldest dipped to -5.5°C in 2008.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.1°C — but days and nights have moved in opposite directions. Overnight lows rose from 7.1°C to 7.5°C while daytime highs eased from 21.3°C to 21.1°C, narrowing the gap between day and night.
January is one of the cooler months of the year in Ar Rass and about average for rainfall, so plan for around 20.8°C daytime highs and 6.4°C at night.
Yes — January is the coldest month of the year in Ar Rass, averaging 13.6°C.
For January in Ar Rass, pack warm layers and a jacket for chilly mornings, with typical highs of 20.8°C and lows of 6.4°C.
Relative humidity in January averages 44% — relatively dry.
Average wind speed in January is 2.7 m/s. The windiest January on record averaged 3.4 m/s (1983).
The wettest January on record was 1985 with 127 mm. On average, January sees 10 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 Ar Rass behaves each January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
