Average temperatures, rainfall and packing tips for Riyadh, Saudi Arabia in September
September in Riyadh is typically very hot, with average daytime highs around 40°C and nights near 27°C. Temperature-wise it sits mid-range for Riyadh (the 4th warmest month).
September is essentially dry in Riyadh - rainfall is negligible on average.
If your dates are flexible, the most comfortable months in Riyadh are usually January, February, March, November and December.
← Riyadh weather tomorrow (live)
In September, Riyadh averages a daytime high of about 40°C and a night-time low of around 27°C, based on recent historical data.
September is essentially dry in Riyadh - rainfall is negligible on average.
September is seriously hot in Riyadh. It's still doable - plan outdoor activities for early morning or evening, and build in shade and hydration breaks around midday. If your dates are flexible, the most comfortable months in Riyadh are usually January, February, March, November and December.