Riyadh, Saudi Arabia Weather
Riyadh hourly forecast: next 24 hours
Today's high of 100°F (38°C) is about 4°F (2°C) below the typical September high of 104°F (40°C).
Current conditions in detail
Riyadh weather tomorrow (Thursday, September 17)
Tomorrow in Riyadh looks severe sandstorm, with a high of 102° and an overnight low of 85°. Rain is unlikely (1% chance). Winds top out near 11 mph, and the UV index reaches 10 (very high).
Riyadh 14-day forecast
About the weather in Riyadh
Riyadh works on a dry budget: 3.0 inches (77 mm) of precipitation a year, spread over roughly 15 days. Temperature does the varying instead, from 70°F (21°C) on a typical January afternoon to 110°F (44°C) in July, with nights 13°C below the day.
Riyadh weather: quick facts
- Hottest month: July - highs near 110°F (44°C)
- Coldest month: January - highs near 70°F (21°C)
- Decade extremes (2015-2024): 118°F (48°C) high · 31°F (-1°C) low
- Wettest month: January (2 rainy days) · Sunniest: June (12.0 h sun/day)
- Climate type: hot desert
- Annual swing: 22°C between the average warmest and coolest month · day to night: 13°C
- Months averaging 30°C or hotter: 7
- Average humidity: 26%
Temperatures through the year
Relative humidity averages 26% across the year, drier than almost anywhere else we cover. Warmth peaks in July: highs of 110°F (44°C), lows of 86°F (30°C). January bottoms out at 70°F (21°C) in daylight, 48°F (9°C) after dark. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 118°F (48°C) and the lowest daily minimum 31°F (-1°C). 12 months average under 20 mm of rain, the longest unbroken stretch running January through December.
Rain, sun and snow
Average highs hold at or above 30°C for 7 months of the year, April through October being the unbroken run. Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is December through February. Precipitation concentrates in January - 15 mm (0.6 in) on 2 days - and thins out by June.
Season by season
Spring (March through May)
Spring turns very hot here - highs near 92°F (33°C), nights near 68°F (20°C), and precipitation is sparse, near 1.0 inches (26 mm) for the season. Daylight is generous - around 10.8 hours of sun a day.
Summer (June through August)
Summer in Riyadh is punishingly hot, with daytime highs averaging 109°F (43°C) and nights around 84°F (29°C); precipitation is essentially absent. Daylight is generous - around 11.8 hours of sun a day.
Fall (September through November)
Fall in Riyadh brings serious heat, with daytime highs averaging 93°F (34°C) and nights around 70°F (21°C); precipitation is sparse, near 15 mm (0.6 in) for the season. Daylight is generous - around 10.7 hours of sun a day.
Winter (December through February)
Winter settles into easy warmth here - highs near 72°F (22°C), nights near 50°F (10°C), and precipitation is sparse, near 1.4 inches (37 mm) for the season.
Average temperatures in Riyadh by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 70° | 48° | 2 | 0.6 in | 9.4 h/day | 45% |
| February | 74° | 52° | 2 | 0.5 in | 9.8 h/day | 36% |
| March | 83° | 60° | 3 | 0.4 in | 10.4 h/day | 31% |
| April | 91° | 68° | 3 | 0.5 in | 10.6 h/day | 27% |
| May | 102° | 77° | 1 | 0.1 in | 11.4 h/day | 17% |
| June | 108° | 83° | 0 | 0.0 in | 12.0 h/day | 11% |
| July | 110° | 86° | 0 | 0.0 in | 11.7 h/day | 12% |
| August | 109° | 85° | 0 | 0.0 in | 11.6 h/day | 13% |
| September | 104° | 79° | 0 | 0.0 in | 11.4 h/day | 15% |
| October | 94° | 70° | 0 | 0.0 in | 10.9 h/day | 22% |
| November | 81° | 61° | 2 | 0.5 in | 9.8 h/day | 42% |
| December | 72° | 51° | 2 | 0.4 in | 9.6 h/day | 46% |