Ha'il climate — normals and trends
Ha'il (Saudi Arabia) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 22.3 °C and it receives 83 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 (32.4 °C on average) and the coldest is January (10.3 °C). Rainfall peaks in November.
Ha'il averages 5 frost days, 186 hot days (≥ 30 °C) and 16 rainy days per year.
Ha'il has warmed by +3.8 °C between 1940 and 2025, or +0.44 °C per decade. This trend is statistically significant.
The number of frost days there went from about 9 to 1 per year over the period.
The hottest day of the period reached 44.9 °C (on 1 August 2017) and the coldest -8.2 °C (on 7 January 1942).
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
Ha'ilHa'il Region
- coords
- 27.52°, 41.69°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.3°C
Average daily high
28.8°C
Average daily low
15.6°C
Annual rainfall
83mm
Sunshine / day
11.3h
Mean relative humidity
31%
Average peak wind
20.8km/h
Seasonal range
22.1°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
186 d/yr
Rainy days (≥ 1 mm)
16 d/yr
Annual snowfall
0.1 cm
Average feels-like high
26.0 °C
Average feels-like low
12.1 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
140 d/yr
Solar radiation
22.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+3.8 °C
since 1940
+0.4 °C per decade · r² = 0.75 · 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
44.9 °C
1 August 2017
Coldest day
-8.2 °C
7 January 1942
Wettest day
38 mm
15 April 2023
Windiest day
57.2 km/h
8 May 1972
Strongest gust
92.9 km/h
1 March 1953
Hottest feels-like
44.4 °C
31 July 2020
Coldest feels-like
-12.7 °C
7 January 1942
Snowiest day
1.7 cm
19 February 1949
Sunniest day
13.1 h
28 May 1940
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 | 16.2 °C | -0.4 °C | 10 mm | +1 mm |
| Feb | 17.5 °C | -1.6 °C | 7 mm | +0 mm |
| Mar | 23.2 °C | -0.1 °C | 31 mm | +20 mm |
| Apr | 31.2 °C | +2.7 °C | 11 mm | -2 mm |
| May | 35.7 °C | +1.8 °C | 0 mm | -4 mm |
| Jun | 39.2 °C | +1.8 °C | 0 mm | -0 mm |
| Jul | 38.9 °C | +0.6 °C | 0 mm | 0 mm |
| Aug | 40.1 °C | +1.3 °C | 0 mm | -0 mm |
| Sep | 38.5 °C | +1.5 °C | 0 mm | -0 mm |
| Oct | 32.7 °C | +1.2 °C | 0 mm | -4 mm |
| Nov | 25.9 °C | +2.8 °C | 13 mm | -10 mm |
| Dec | 18.0 °C | 0.0 °C | 60 mm | +48 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 Ha'il?
Ha'il has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 22.3 °C and it receives 83 mm of precipitation per year.
What is the hottest day ever recorded in Ha'il?
The hottest day measured in Ha'il between 1940 and 2025 was 1 August 2017, reaching 44.9 °C.
What is the coldest day in Ha'il?
The coldest day measured in Ha'il between 1940 and 2025 was 7 January 1942, at -8.2 °C.
Does it snow in Ha'il?
Almost never: Ha'il sees virtually no snow, with about 5 frost days per year.
Has the climate of Ha'il warmed?
Yes: Ha'il warmed by +3.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ha'il?
The wettest day measured in Ha'il between 1940 and 2025 was 15 April 2023, with 38 mm of rain in 24 hours.
What was the windiest day in Ha'il?
The windiest day measured in Ha'il between 1940 and 2025 was 8 May 1972, with winds reaching 57.2 km/h.
What is the warmest month in Ha'il?
The warmest month in Ha'il is August (32.4 °C on average); the coldest is January (10.3 °C).
How much does it rain in Ha'il?
Ha'il receives on average 83 mm of precipitation per year, spread over about 16 rainy days.
Is it sunny in Ha'il?
Ha'il gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ha'il?
The heaviest 24-hour snowfall measured in Ha'il between 1940 and 2025 was 19 February 1949, with 1.7 cm.
Are there tropical nights in Ha'il?
Yes: Ha'il has on average 140 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ha'il?
In Ha'il, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 31 July 2020, and the lowest was -12.7 °C on 7 January 1942.
Compare Ha'il with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ha'il