September weather forecast
Byblos, Lebanon

September marks the beginning of autumn in Byblos with temperatures showing a slight fall. Unlike August, it experiences a small amount of rainfall charting at 2mm (0.08"). This period sees a gradual decrease in sea temperatures, marking the end of beach season. The drop in UV index signifies lower sunlight intensity, but still requires some degree of sun protection. Even with these changes, the weather continues to be warm enough for outdoor activities.

Temperature

The commencement of September brings an average high-temperature of a still moderately hot 27°C (80.6°F), marking an inconsequential divergence from August. Compared to daytime temperatures, Byblos's temperature drops significantly, averaging a refreshing 14°C (57.2°F) during the nights of September.

Rainfall

Months with rainfall in Byblos are January through June, September through December. September is the first month it rains in Byblos. Throughout September, in the average 1 rainfall days, it receives 2mm (0.08") of precipitation. In Byblos, during the entire year, the rain falls for 81 days and collects up to 733mm (28.86") of precipitation.

Sea temperature

In Byblos, in September, the average water temperature is 28°C (82.4°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In Byblos, Lebanon, the average length of the day in September is 12h and 23min.
On the first day of September in Byblos, sunrise is at 06:11 and sunset at 19:03. On the last day of the month, sunrise is at 06:31 and sunset at 18:23 EEST.

Sunshine

In Byblos, Lebanon, the average sunshine in September is 10h.

UV index

In September, the average daily maximum UV index is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 8 in September transforms into the following instructions:
Ensure you're protected; unprotected eyes and skin can get hurt in moments. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be alert! The reflection of water and sand augments UV radiation intensity.