Ar Rumaythīyah climate — normals and trends
Ar Rumaythīyah (Kuwait) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 25.5 °C and it receives 108 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 July (36.1 °C on average) and the coldest is January (13.3 °C). Rainfall peaks in January.
Ar Rumaythīyah averages 0 frost days, 191 hot days (≥ 30 °C) and 18 rainy days per year.
Ar Rumaythīyah has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 47.1 °C (on 13 June 1988) and the coldest -1.1 °C (on 20 January 1964).
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
Ar RumaythīyahHawalli
- coords
- 29.31°, 48.07°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.5°C
Average daily high
29.8°C
Average daily low
21.6°C
Annual rainfall
108mm
Sunshine / day
11.1h
Mean relative humidity
46%
Average peak wind
24.2km/h
Seasonal range
22.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
191 d/yr
Rainy days (≥ 1 mm)
18 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.9 °C
Average feels-like low
19.4 °C
Average peak gust
34.0 km/h
Tropical nights (≥ 20 °C)
208 d/yr
Solar radiation
21.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
47.1 °C
13 June 1988
Coldest day
-1.1 °C
20 January 1964
Wettest day
50 mm
18 November 2013
Windiest day
57.7 km/h
15 April 1977
Strongest gust
87.1 km/h
25 March 2011
Hottest feels-like
51.4 °C
30 July 2020
Coldest feels-like
-8.3 °C
20 January 1964
Sunniest day
13.2 h
24 June 1941
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 18.6 °C | +1.7 °C | 6 mm | -18 mm |
| Feb | 17.9 °C | -1.1 °C | 15 mm | +3 mm |
| Mar | 23.1 °C | -0.1 °C | 52 mm | +36 mm |
| Apr | 30.9 °C | +2.2 °C | 0 mm | -7 mm |
| May | 37.8 °C | +3.0 °C | 0 mm | -2 mm |
| Jun | 40.1 °C | +0.9 °C | 0 mm | 0 mm |
| Jul | 42.1 °C | +1.5 °C | 0 mm | 0 mm |
| Aug | 41.3 °C | +0.8 °C | 2 mm | +1 mm |
| Sep | 38.9 °C | +1.0 °C | 0 mm | 0 mm |
| Oct | 33.4 °C | +0.7 °C | 0 mm | -2 mm |
| Nov | 27.2 °C | +2.2 °C | 0 mm | -21 mm |
| Dec | 19.9 °C | +1.1 °C | 34 mm | +12 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 Ar Rumaythīyah?
Ar Rumaythīyah has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 25.5 °C and it receives 108 mm of precipitation per year.
What is the hottest day ever recorded in Ar Rumaythīyah?
The hottest day measured in Ar Rumaythīyah between 1940 and 2025 was 13 June 1988, reaching 47.1 °C.
What is the coldest day in Ar Rumaythīyah?
The coldest day measured in Ar Rumaythīyah between 1940 and 2025 was 20 January 1964, at -1.1 °C.
Does it snow in Ar Rumaythīyah?
Almost never: Ar Rumaythīyah sees virtually no snow, with about 0 frost days per year.
Has the climate of Ar Rumaythīyah warmed?
Yes: Ar Rumaythīyah warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ar Rumaythīyah?
The wettest day measured in Ar Rumaythīyah between 1940 and 2025 was 18 November 2013, with 50 mm of rain in 24 hours.
What was the windiest day in Ar Rumaythīyah?
The windiest day measured in Ar Rumaythīyah between 1940 and 2025 was 15 April 1977, with winds reaching 57.7 km/h.
What is the warmest month in Ar Rumaythīyah?
The warmest month in Ar Rumaythīyah is July (36.1 °C on average); the coldest is January (13.3 °C).
How much does it rain in Ar Rumaythīyah?
Ar Rumaythīyah receives on average 108 mm of precipitation per year, spread over about 18 rainy days.
Is it sunny in Ar Rumaythīyah?
Ar Rumaythīyah gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
Are there tropical nights in Ar Rumaythīyah?
Yes: Ar Rumaythīyah has on average 208 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ar Rumaythīyah?
In Ar Rumaythīyah, between 1940 and 2025, the highest apparent temperature reached 51.4 °C on 30 July 2020, and the lowest was -8.3 °C on 20 January 1964.
Compare Ar Rumaythīyah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ar Rumaythīyah