Beirut weather in September
September is a hot month in Beirut with clearly summery days, though mornings and evenings stay usable outdoors. Expect around 2 scattered rain days. The wettest month of the year is usually January. The sea averages 30°C — comfortable for swimming and watersports.
September climate normals for Beirut
Avg high
30°C
Avg low
24°C
Rain days
2
Humidity
64%
Sea temp
30°C
Beirut climate through the year
Normals computed from Open-Meteo's ERA5 reanalysis archive (2015–2024).