Dhahran climate — normals and trends
Dhahran (Saudi Arabia) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 26.3 °C and it receives 70 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 (35.7 °C on average) and the coldest is January (15.2 °C). Rainfall peaks in January.
Dhahran averages 0 frost days, 219 hot days (≥ 30 °C) and 13 rainy days per year.
Dhahran has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 48.6 °C (on 2 July 2021) and the coldest -1.3 °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
DhahranEastern Province
- coords
- 26.29°, 50.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.3°C
Average daily high
32.5°C
Average daily low
20.9°C
Annual rainfall
70mm
Sunshine / day
11.2h
Mean relative humidity
49%
Average peak wind
23.1km/h
Seasonal range
20.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
219 d/yr
Rainy days (≥ 1 mm)
13 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.4 °C
Average feels-like low
19.7 °C
Average peak gust
37.2 km/h
Tropical nights (≥ 20 °C)
205 d/yr
Solar radiation
22.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
48.6 °C
2 July 2021
Coldest day
-1.3 °C
20 January 1964
Wettest day
57 mm
12 November 1997
Windiest day
54.4 km/h
19 January 1964
Strongest gust
81.7 km/h
31 May 2017
Hottest feels-like
51.2 °C
20 August 1998
Coldest feels-like
-10.7 °C
20 January 1964
Sunniest day
13.0 h
6 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 | 21.5 °C | +1.3 °C | 2 mm | -14 mm |
| Feb | 21.1 °C | -1.1 °C | 16 mm | +4 mm |
| Mar | 26.1 °C | -0.3 °C | 11 mm | +0 mm |
| Apr | 35.2 °C | +3.1 °C | 0 mm | -6 mm |
| May | 40.4 °C | +2.3 °C | 0 mm | -1 mm |
| Jun | 42.6 °C | +1.1 °C | 0 mm | 0 mm |
| Jul | 43.4 °C | +0.8 °C | 0 mm | 0 mm |
| Aug | 42.7 °C | +0.5 °C | 0 mm | 0 mm |
| Sep | 40.3 °C | +0.6 °C | 0 mm | 0 mm |
| Oct | 34.9 °C | -0.2 °C | 0 mm | -1 mm |
| Nov | 29.4 °C | +1.3 °C | 0 mm | -8 mm |
| Dec | 23.6 °C | +1.4 °C | 41 mm | +26 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 Dhahran?
Dhahran has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 26.3 °C and it receives 70 mm of precipitation per year.
What is the hottest day ever recorded in Dhahran?
The hottest day measured in Dhahran between 1940 and 2025 was 2 July 2021, reaching 48.6 °C.
What is the coldest day in Dhahran?
The coldest day measured in Dhahran between 1940 and 2025 was 20 January 1964, at -1.3 °C.
Does it snow in Dhahran?
Almost never: Dhahran sees virtually no snow, with about 0 frost days per year.
Has the climate of Dhahran warmed?
Yes: Dhahran warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dhahran?
The wettest day measured in Dhahran between 1940 and 2025 was 12 November 1997, with 57 mm of rain in 24 hours.
What was the windiest day in Dhahran?
The windiest day measured in Dhahran between 1940 and 2025 was 19 January 1964, with winds reaching 54.4 km/h.
What is the warmest month in Dhahran?
The warmest month in Dhahran is July (35.7 °C on average); the coldest is January (15.2 °C).
How much does it rain in Dhahran?
Dhahran receives on average 70 mm of precipitation per year, spread over about 13 rainy days.
Is it sunny in Dhahran?
Dhahran gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Dhahran?
Yes: Dhahran has on average 205 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dhahran?
In Dhahran, between 1940 and 2025, the highest apparent temperature reached 51.2 °C on 20 August 1998, and the lowest was -10.7 °C on 20 January 1964.
Compare Dhahran with another city
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Nearby cities
The climate around Dhahran