Dammam weather in September
September is very hot in Dammam, with afternoons above 35°C — plan outdoor activity for early morning or after sunset. Rain is virtually absent this month. The sea averages 33°C — comfortable for swimming and watersports.
September climate normals for Dammam
Avg high
40°C
Avg low
27°C
Rain days
0
Humidity
53%
Sea temp
33°C
Dammam climate through the year
Normals computed from Open-Meteo's ERA5 reanalysis archive (2015–2024).