Ruwais climate — normals and trends
Ruwais (United Arab Emirates) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 26.8 °C and it receives 44 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (34.5 °C on average) and the coldest is January (17.5 °C). Rainfall peaks in March.
Ruwais averages 0 frost days, 234 hot days (≥ 30 °C) and 8 rainy days per year.
Ruwais has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 48.1 °C (on 20 July 2008) and the coldest 3.4 °C (on 8 January 1992).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
RuwaisAbu Dhabi Emirate
- coords
- 24.11°, 52.73°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.8°C
Average daily high
33.0°C
Average daily low
21.2°C
Annual rainfall
44mm
Sunshine / day
11.4h
Mean relative humidity
58%
Average peak wind
22.0km/h
Seasonal range
17.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
234 d/yr
Rainy days (≥ 1 mm)
8 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.2 °C
Average feels-like low
22.2 °C
Average peak gust
36.1 km/h
Tropical nights (≥ 20 °C)
214 d/yr
Solar radiation
22.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.57 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
48.1 °C
20 July 2008
Coldest day
3.4 °C
8 January 1992
Wettest day
47 mm
12 March 1996
Windiest day
49.2 km/h
19 May 2004
Strongest gust
76.0 km/h
19 May 2004
Hottest feels-like
52.0 °C
23 July 2008
Coldest feels-like
-0.9 °C
12 January 1942
Sunniest day
13.0 h
7 May 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 21.9 °C | -0.4 °C | 0 mm | -9 mm |
| Feb | 24.3 °C | +0.2 °C | 1 mm | -7 mm |
| Mar | 28.5 °C | +0.1 °C | 0 mm | -9 mm |
| Apr | 36.6 °C | +3.0 °C | 0 mm | -5 mm |
| May | 39.4 °C | +1.1 °C | 0 mm | -1 mm |
| Jun | 39.6 °C | -0.1 °C | 0 mm | 0 mm |
| Jul | 40.6 °C | -0.6 °C | 0 mm | -1 mm |
| Aug | 42.3 °C | +1.0 °C | 0 mm | -0 mm |
| Sep | 38.9 °C | 0.0 °C | 0 mm | -0 mm |
| Oct | 34.4 °C | -0.5 °C | 0 mm | -0 mm |
| Nov | 29.3 °C | +0.1 °C | 2 mm | -1 mm |
| Dec | 25.4 °C | +1.2 °C | 18 mm | +10 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Ruwais?
Ruwais has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 26.8 °C and it receives 44 mm of precipitation per year.
What is the hottest day ever recorded in Ruwais?
The hottest day measured in Ruwais between 1940 and 2025 was 20 July 2008, reaching 48.1 °C.
What is the coldest day in Ruwais?
The coldest day measured in Ruwais between 1940 and 2025 was 8 January 1992, at 3.4 °C.
Does it snow in Ruwais?
Almost never: Ruwais sees virtually no snow, with about 0 frost days per year.
Has the climate of Ruwais warmed?
Yes: Ruwais warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ruwais?
The wettest day measured in Ruwais between 1940 and 2025 was 12 March 1996, with 47 mm of rain in 24 hours.
What was the windiest day in Ruwais?
The windiest day measured in Ruwais between 1940 and 2025 was 19 May 2004, with winds reaching 49.2 km/h.
What is the warmest month in Ruwais?
The warmest month in Ruwais is August (34.5 °C on average); the coldest is January (17.5 °C).
How much does it rain in Ruwais?
Ruwais receives on average 44 mm of precipitation per year, spread over about 8 rainy days.
Is it sunny in Ruwais?
Ruwais gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.
Are there tropical nights in Ruwais?
Yes: Ruwais has on average 214 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ruwais?
In Ruwais, between 1940 and 2025, the highest apparent temperature reached 52.0 °C on 23 July 2008, and the lowest was -0.9 °C on 12 January 1942.
Compare Ruwais with another city
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Nearby cities
The climate around Ruwais