Muscat weather in September
September is very hot in Muscat, with afternoons above 35°C — plan outdoor activity for early morning or after sunset. Rain is virtually absent this month. The sea averages 31°C — comfortable for swimming and watersports.
September climate normals for Muscat
Avg high
36°C
Avg low
28°C
Rain days
0
Humidity
51%
Sea temp
31°C
Muscat climate through the year
Normals computed from Open-Meteo's ERA5 reanalysis archive (2015–2024).