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The weather in Riyadh in September is very hot. The average temperatures are between 26°C and 40°C, drinking water regularly is advisable.
There shouldn't be any rainy days in in Riyadh during September. Having said that, the days are very hot in September so hanging out outside is more recomanded during the after noons and evening time.
Our weather forecast can give you a great sense of what weather to expect in Riyadh in September 2025.
If you’re planning to visit Riyadh in the near future, we highly recommend that you review the 14 day weather forecast for Riyadh before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 21° / 10° | 0 | 31 | 0 | 9 mm | Good | Riyadh in January |
| February | 24° / 12° | 0 | 28 | 0 | 9 mm | Perfect | Riyadh in February |
| March | 28° / 16° | 1 | 31 | 0 | 12 mm | Perfect | Riyadh in March |
| April | 33° / 22° | 2 | 28 | 0 | 28 mm | Good | Riyadh in April |
| May | 38° / 27° | 0 | 31 | 0 | 12 mm | Bad | Riyadh in May |
| June | 42° / 29° | 0 | 30 | 0 | 0 mm | Awful | Riyadh in June |
| July | 43° / 30° | 0 | 31 | 0 | 1 mm | Awful | Riyadh in July |
| August | 43° / 29° | 0 | 31 | 0 | 0 mm | Awful | Riyadh in August |
| September | 40° / 26° | 0 | 30 | 0 | 0 mm | Bad | Riyadh in September |
| October | 34° / 21° | 0 | 31 | 0 | 0 mm | Ok | Riyadh in October |
| November | 27° / 15° | 1 | 29 | 0 | 18 mm | Perfect | Riyadh in November |
| December | 21° / 12° | 0 | 31 | 0 | 7 mm | Good | Riyadh in December |