Al Kharj climate
Al Kharj (Saudi Arabia) has a hot desert climate (Köppen BWh). The average temperature over the year is 27 °C81 °F, and about 30 mm1.2 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Al Kharj climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2271 | 846 | 1558 | 50.2 |
| Feb | 2577 | 1050 | 1763 | 40.2 |
| Mar | 3086 | 1458 | 2272 | 20.1 |
| Apr | 3596 | 2068 | 2882 | 50.2 |
| May | 41106 | 2577 | 3392 | 10.0 |
| Jun | 44111 | 2781 | 3696 | 00.0 |
| Jul | 45113 | 2984 | 3799 | 00.0 |
| Aug | 45112 | 2984 | 3798 | 00.0 |
| Sep | 41106 | 2578 | 3392 | 00.0 |
| Oct | 3696 | 2169 | 2883 | 00.0 |
| Nov | 2883 | 1559 | 2171 | 60.3 |
| Dec | 2373 | 949 | 1661 | 60.2 |
| Year | 45113 | 846 | 2781 | 301.2 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 40% | 22% | 4.5 | 10:48 |
| Feb | 32% | 23% | 5.3 | 11:19 |
| Mar | 27% | 27% | 6.2 | 11:57 |
| Apr | 24% | 35% | 6.8 | 12:42 |
| May | 16% | 21% | 7.4 | 13:18 |
| Jun | 11% | 8% | 8.0 | 13:37 |
| Jul | 12% | 17% | 7.7 | 13:29 |
| Aug | 14% | 15% | 7.3 | 12:58 |
| Sep | 15% | 8% | 6.8 | 12:15 |
| Oct | 20% | 8% | 5.9 | 11:33 |
| Nov | 35% | 21% | 4.6 | 10:56 |
| Dec | 43% | 20% | 4.2 | 10:39 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Al Kharj is like
The warmest month is July, with an average high of 45 °C113 °F and a low of 29 °C84 °F. The coldest is January, when highs average 22 °C71 °F and lows 8 °C46 °F. Seasons are strongly marked: the warmest month is on average 22.5 °C40.5 °F warmer than the coldest.
It is very dry, with only 30 mm1.2 in of precipitation in an average year. The wettest three-month stretch is November–January, which brings 59% of the annual total. The wettest month is November (6 mm0.3 in), the driest is June (0 mm0.0 in).
Relative humidity ranges from 11% in June to 43% in December. The clearest skies (lowest average cloud amount, 8%) are typical of September. Average wind speed near the ground ranges from 8 km/h (5 mph) in October to 11 km/h (7 mph) in June. Daylight lasts from about 10.6 hours in December to 13.6 hours in June.
Best time to visit Al Kharj
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–February: average highs of 22 °C71 °F to 28 °C83 °F with 4 mm0.2 in to 6 mm0.3 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 45 °C113 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Al Kharj
- Winter (December–February) — highs 2271 to 25 °C77 °F, lows 846 to 10 °C50 °F, about 5 mm0.2 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 3086 to 41 °C106 °F, lows 1458 to 25 °C77 °F, about 3 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Summer (June–August) — highs 44111 to 45 °C113 °F, lows 2781 to 29 °C84 °F, about 0 mm0.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2883 to 41 °C106 °F, lows 1559 to 25 °C78 °F, about 2 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Al Kharj compares
Compared with Riyadh, about 86 km to the northwest, Al Kharj is on average 1 °C1.8 °F warmer and receives a similar amount of precipitation. The difference is largest in July (1.2 °C2.1 °F warmer).
Of the 26 places in Saudi Arabia covered by World Climates, Al Kharj is the 10th warmest by annual mean temperature and the 17th wettest by annual precipitation. See all of them on the Saudi Arabia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Kuwait City (Kuwait, BWh), Hawalli (Kuwait, BWh) and Kuwait International Airport (Kuwait, BWh).
Nearby places
- Riyadh 86 km · 26 °C79 °F · 31 mm1.2 in
- Al Hufuf 264 km · 27 °C81 °F · 33 mm1.3 in
- Az Zulfi 348 km · 25 °C77 °F · 32 mm1.3 in
- Dammam 376 km · 27 °C81 °F · 46 mm1.8 in
- Al Jubayl 392 km · 27 °C81 °F · 47 mm1.8 in
- Unaizah 399 km · 25 °C77 °F · 29 mm1.2 in
- Manama 400 km · 27 °C81 °F · 40 mm1.6 in
- Al Muharraq 404 km · 27 °C80 °F · 70 mm2.7 in
Frequently asked questions
What is the warmest month in Al Kharj?
July is the warmest month in Al Kharj, with an average high of 45 °C (113 °F) and an average low of 29 °C (84 °F).
What is the coldest month in Al Kharj?
January is the coldest month, with an average high of 22 °C (71 °F) and an average low of 8 °C (46 °F).
When does it rain the most in Al Kharj?
November is the wettest month with about 6 mm (0.3 in) of precipitation; June is the driest with about 0 mm (0.0 in).
What is the best time to visit Al Kharj?
Judging by long-term averages, the most comfortable months are November–February.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.