Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Riyadh features a hot desert climate (BWh).Temperatures typically range between 15 °C (60 °F) and 38 °C (100 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 47 °C (117 °F).The average annual precipitation amounts to about 52 mm (2.1 inches) and receives 9 rainy days on the 1 mm (0.04 inches) threshold annually.Riyadh enjoys an average of 3912 hours of sunshine throughout the year, and daylight varies from 10 hours 37 minutes to 13 hours 37 minutes per day.
The warmest months in Riyadh are June, July and August, with daily mean temperatures ranging from 36 to 38 °C (98 - 100 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 17 °C (60 - 63 °F) throughout the day. On average each year, Riyadh experiences 255 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 | 30°C (86°F) | 35°C (95°F) | 38°C (101°F) | 40°C (104°F) | 44°C (112°F) | 46°C (116°F) | 47°C (117°F) | 47°C (117°F) | 45°C (113°F) | 41°C (105°F) | 35°C (95°F) | 29°C (85°F) |
Mean maximum | 29°C (84°F) | 31°C (89°F) | 36°C (97°F) | 39°C (103°F) | 43°C (110°F) | 45°C (114°F) | 46°C (115°F) | 45°C (114°F) | 44°C (111°F) | 39°C (103°F) | 33°C (92°F) | 28°C (83°F) |
Average high | 22°C (71°F) | 23°C (74°F) | 29°C (84°F) | 34°C (93°F) | 39°C (102°F) | 43°C (109°F) | 44°C (112°F) | 43°C (110°F) | 41°C (106°F) | 35°C (96°F) | 28°C (82°F) | 23°C (73°F) |
Daily mean | 15°C (60°F) | 17°C (63°F) | 22°C (73°F) | 28°C (82°F) | 33°C (91°F) | 36°C (98°F) | 38°C (100°F) | 37°C (99°F) | 34°C (94°F) | 29°C (84°F) | 22°C (71°F) | 17°C (62°F) |
Average low | 10°C (50°F) | 11°C (52°F) | 16°C (61°F) | 21°C (71°F) | 26°C (79°F) | 29°C (84°F) | 31°C (88°F) | 30°C (86°F) | 27°C (81°F) | 22°C (72°F) | 16°C (62°F) | 11°C (53°F) |
Mean minimum | 4°C (39°F) | 4°C (40°F) | 10°C (50°F) | 16°C (61°F) | 21°C (71°F) | 26°C (79°F) | 28°C (83°F) | 26°C (80°F) | 23°C (74°F) | 18°C (64°F) | 11°C (51°F) | 6°C (43°F) |
Minimum | 2°C (36°F) | -1°C (31°F) | 7°C (46°F) | 14°C (57°F) | 20°C (67°F) | 25°C (77°F) | 27°C (81°F) | 26°C (78°F) | 21°C (70°F) | 15°C (60°F) | 6°C (44°F) | 3°C (38°F) |
Compare temperature, precipitation, sunshine, UV index in Riyadh, Saudi Arabia with other places around the world.
Riyadh usually has the most precipitation in February, April and November, with an average of 2 rainy days and 11 mm (0.4 inches) of precipitation per month.The driest months in Riyadh are June, August and September. 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) | 4 (0.2) | 14 (0.6) | 5 (0.2) | 10 (0.4) | 3 (0.1) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.0) | 9 (0.3) | 6 (0.2) |
Average precipitation days (≥ 1 mm) | 0 | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 |
The sunniest months in Riyadh are June, July and August, when the sun shines an average of 12 hours 0 minutes a day.Least sunny months in Riyadh: January, February and November receive an average of 9 hours 9 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 243 | 286 | 331 | 331 | 360 | 364 | 376 | 363 | 336 | 328 | 294 | 296 |
Mean daily daylight hours | 10h 46m | 11h 19m | 12h 0m | 12h 44m | 13h 20m | 13h 37m | 13h 28m | 12h 57m | 12h 15m | 11h 32m | 10h 55m | 10h 37m |
Riyadh experiences the highest level of ultraviolet (UV) radiation in May, July and September, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure.January, November and December are in the High exposure category. In these months, the maximum values of the UV index do not exceed 7. 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) | 7 | 8 | 10 | 10 | 12 | 11 | 11 | 10 | 11 | 9 | 7 | 6 |