September weather forecast and climate
Tripoli, Lebanon

The Pilgrim Hill in Tripoli, Lebanon, with distant city buildings and skyline
The Pilgrim Hill in Tripoli, Lebanon, with distant city buildings and skyline

Weather in September

The first month of the autumn, September, is still a hot month in Tripoli, Lebanon, with temperature in the range of an average low of 22°C (71.6°F) and an average high of 30°C (86°F).
An excellent water temperature of 28°C (82.4°F) and only 1 rainfall days, with 12mm (0.47") of accumulated rainfall, makes September a prime for swimming and other water activities.

Temperature

The warmest months in Tripoli are August and September, with an average high-temperature of 30°C (86°F).

Heat index

The average heat index is estimated at a tropical 34.8°C (94.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, clothing, pregnancy, and wind affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity is 69%.

Rainfall

Months with rainfall in Tripoli are January through June, September through December. September is the first month it rains. Throughout September, in the average 1 rainfall days, it receives 12mm (0.47") of precipitation. In Tripoli, during the entire year, the rain falls for 82 days and collects up to 745mm (29.33") of precipitation.

Sea temperature

In September, the average sea temperature is 28°C (82.4°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Tripoli, the average length of the day in September is 12.4h.

Sunshine

In Tripoli, the average sunshine in September is 10h.

UV index

The average daily maximum UV index in Tripoli is 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 8 transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the warmest month in Tripoli?

August and September, with an average high-temperature of 30°C (86°F), are warmest months.

What is the temperature in September in Tripoli?

In Tripoli, Lebanon, in September, the average high-temperature is 30°C (86°F), and the average low-temperature is 22°C (71.6°F). In September, the average heat index (a.k.a. 'real feel', 'feels like'), that calculates temperature value influenced by the moisture in the air, is estimated at 34.8°C (94.6°F).

What is the average humidity in September in Tripoli?

In Tripoli, Lebanon, the average relative humidity in September is 69%.

When does it start to rain in Tripoli?

September is the first month it rains. Throughout September, in the average 1 rainfall days, it receives 12mm (0.47") of precipitation.

What is the sea water temperature in September in Tripoli?

In Tripoli, in September, the average water temperature is 28°C (82.4°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Tripoli have in September?

In Tripoli, Lebanon, the average length of the day in September is 12.4h.

How long on average sun shines in September in Tripoli?

In September, the average sunshine in Tripoli is 10h.

How high is the UV index in September in Tripoli?

In September, the average daily maximum UV index in Tripoli is 8. A UV Index estimate of 8 to 10 represents a very high health threat from unprotected exposure to the UV radiation.

Average temperature in September
Tripoli, Lebanon

Average temperature in September - Tripoli, Lebanon
  • Average high temperature in September: 30°C

The warmest months (with the highest average high temperature) are August and September (30°C).
Months with the lowest average high temperature are January and February (17°C).

  • Average low temperature in September: 22°C

The month with the highest average low temperature is August (23°C).
The coldest months (with the lowest average low temperature) are January and February (10°C).

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Average humidity in September
Tripoli, Lebanon

Average humidity in September - Tripoli, Lebanon
  • Average humidity in September: 69%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is November (66%).

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Average rainfall in September
Tripoli, Lebanon

Average rainfall in September - Tripoli, Lebanon
  • Average rainfall in September: 12mm

The wettest month (with the highest rainfall) is January (190mm).
The driest months (with the least rainfall) are July and August (0mm).

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Average rainfall days in September
Tripoli, Lebanon

Average rainfall days in September - Tripoli, Lebanon
  • Average rainfall days in September: 1 days

The month with the highest number of rainy days is January (15 days).
Months with the least rainy days are June and September (1 days).

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Average sea temperature in September
Tripoli, Lebanon

Average sea temperature in September - Tripoli, Lebanon
  • Average sea temperature in September: 28°C

The best month for swimming (with the highest average sea temperature) is August (28.5°C).
The coldest month (with the lowest average sea temperature) is February (17.5°C).

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Average daylight in September /
Average sunshine in September
Tripoli, Lebanon

Average daylight in September / Average sunshine in September - Tripoli, Lebanon
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 10h

Months with the most sunshine are June and July (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 5).

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Average UV index in September
Tripoli, Lebanon

Average UV index in September - Tripoli, Lebanon
  • Average UV index in September: 8

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 3).

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