Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Riyadh features a hot desert climate (BWh).Temperatures typically range between 23 °C (74 °F) and 35 °C (95 °F) through the year, but rarely can drop to 10 °C (49 °F) or can rise to as high as 46 °C (114 °F).The average annual precipitation amounts to about 71 mm (2.8 inches) and receives 13 rainy days on the 1 mm (0.04 inches) threshold annually.Riyadh enjoys an average of 3947 hours of sunshine throughout the year, and daylight varies from 11 hours 12 minutes to 13 hours 1 minutes per day.
The warmest months in Riyadh are May, June and September, with daily mean temperatures ranging from 33 to 35 °C (92 - 95 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 23 to 25 °C (74 - 77 °F) throughout the day. On average each year, Riyadh experiences 327 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 41°C (105°F) | 41°C (106°F) | 43°C (109°F) | 44°C (112°F) | 46°C (114°F) | 45°C (113°F) | 43°C (110°F) | 42°C (108°F) | 42°C (109°F) | 42°C (107°F) | 40°C (104°F) | 37°C (98°F) |
Mean maximum | 36°C (98°F) | 38°C (100°F) | 42°C (108°F) | 43°C (110°F) | 44°C (112°F) | 43°C (110°F) | 42°C (109°F) | 40°C (105°F) | 42°C (108°F) | 41°C (106°F) | 39°C (102°F) | 36°C (96°F) |
Average high | 31°C (87°F) | 32°C (89°F) | 36°C (97°F) | 40°C (104°F) | 41°C (106°F) | 40°C (105°F) | 38°C (101°F) | 36°C (97°F) | 38°C (101°F) | 38°C (102°F) | 35°C (95°F) | 32°C (90°F) |
Daily mean | 23°C (74°F) | 25°C (77°F) | 29°C (84°F) | 33°C (91°F) | 35°C (95°F) | 35°C (95°F) | 33°C (91°F) | 31°C (88°F) | 33°C (92°F) | 33°C (91°F) | 28°C (83°F) | 25°C (77°F) |
Average low | 17°C (62°F) | 18°C (64°F) | 21°C (70°F) | 25°C (77°F) | 28°C (83°F) | 28°C (83°F) | 27°C (82°F) | 26°C (80°F) | 27°C (82°F) | 26°C (80°F) | 22°C (71°F) | 18°C (65°F) |
Mean minimum | 12°C (55°F) | 13°C (55°F) | 16°C (62°F) | 20°C (69°F) | 24°C (76°F) | 27°C (80°F) | 24°C (76°F) | 24°C (76°F) | 25°C (77°F) | 23°C (74°F) | 17°C (63°F) | 15°C (59°F) |
Minimum | 10°C (49°F) | 11°C (52°F) | 15°C (58°F) | 18°C (65°F) | 23°C (74°F) | 26°C (79°F) | 23°C (73°F) | 23°C (74°F) | 24°C (76°F) | 22°C (72°F) | 16°C (61°F) | 13°C (56°F) |
Compare temperature, precipitation, sunshine, UV index in Riyadh, Khartoum, Sudan with other places around the world.
Riyadh usually has the most precipitation in July, August and October, with an average of 3 rainy days and 18 mm (0.7 inches) of precipitation per month.The driest months in Riyadh are January, March and December. On average, 0 mm (0.0 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 4 (0.1) | 6 (0.3) | 13 (0.5) | 34 (1.3) | 6 (0.2) | 7 (0.3) | 0 (0.0) | 0 (0.0) |
Average precipitation days (≥ 1 mm) | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 6 | 1 | 1 | 0 | 0 |
The sunniest months in Riyadh are March, May and June, when the sun shines an average of 11 hours 25 minutes a day.Least sunny months in Riyadh: January, February and November receive an average of 9 hours 52 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 267 | 304 | 345 | 344 | 359 | 345 | 342 | 336 | 325 | 331 | 317 | 325 |
Mean daily daylight hours | 11h 18m | 11h 37m | 12h 2m | 12h 28m | 12h 50m | 13h 1m | 12h 55m | 12h 36m | 12h 11m | 11h 45m | 11h 23m | 11h 12m |
Riyadh experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Riyadh UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 9 | 11 | 13 | 13 | 13 | 10 | 11 | 11 | 11 | 11 | 9 | 8 |