September weather forecastBeirut, Lebanon

Weather in September

As September rolls in, the scorching Beirut summer starts to wane and welcomes an early autumn. Despite a minor increase in rainfall to 2mm (0.08"), the month remains significantly dry compared to the upcoming months. This period marks the transition from the rainless summer to a winter that gradually ushers in showers. Despite this shift, the weather remains favorable for tourists, offering an appealing mix of moderate temperatures and dwindling rains. The gradually cooling temperatures make it an excellent time for sightseeing and outdoor pursuits.

Temperature

Beirut's entry into September measures an average high-temperature of a moderately hot 29.8°C (85.6°F), closely parallel to the preceding month. Beirut's nights in September cool down to an average low-temperature of 23.7°C (74.7°F).

Heat index

The average heat index in September is appraised at a tropical 34°C (93.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

In September, the average relative humidity is 69%.

Rainfall

In September, the rain falls for 1 days. Throughout September, 2mm (0.08") of precipitation is accumulated. In Beirut, during the entire year, the rain falls for 68 days and collects up to 826mm (32.52") of precipitation.

Sea temperature

In September, the average sea temperature is 28.2°C (82.8°F).
Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.

Daylight

In Beirut, the average length of the day in September is 12h and 23min.
On the first day of September in Beirut, sunrise is at 06:12 and sunset at 19:03. On the last day of the month, sunrise is at 06:32 and sunset at 18:23 EEST.

Sunshine

In September, the average sunshine in Beirut is 9.6h.

UV index

In September, the average daily maximum UV index in Beirut is 9. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 9 in September, converts into the following recommendations:
It is essential to prioritize protection. Unprotected skin and eyes can suffer rapid harm. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Despite the overcast weather, sunscreen with SPF of at least 30 should be applied liberally and reapplied often, particularly after swimming or an outdoor workout. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.