September weather forecast
Tripoli, Libya

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The ruins of the archaeological site of Leptis Magna Roman, in Tripoli, Libya
The ruins of the archaeological site of Leptis Magna Roman, in Tripoli, Libya

Weather in September

September signals the beginning of autumn in Tripoli, bringing about a moderate change in the weather. Temperatures start to fall slightly, but the month is still quite warm. September sees a minor increase in rainfall to 9mm (0.35"), thus breaking the summer dry spell. Hours of sunlight begin their gradual decline as we move further into fall. The UV index also reduces to moderate levels at 8, renouncing the summer peaks.

Temperature

Tripoli's average high-temperature in September sits at a still tropical 32°C (89.6°F), showing little difference from the previous month. An average low-temperature of 21°C (69.8°F) marks the month of September.

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 9mm (0.35") of precipitation. Throughout the year, there are 43 rainfall days, and 288mm (11.34") of precipitation is accumulated.

Sea temperature

In Tripoli, in September, the average water temperature is 26°C (78.8°F).
Note: Water temperatures ranging between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, making swimming, diving, and similar water activities pleasurable for extended periods.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 06:42 and sunset at 19:32. On the last day of September, sunrise is at 07:01 and sunset at 18:53 EET.

Sunshine

In Tripoli, the average sunshine in September is 9h.

UV index

In Tripoli, the average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 8 during September morphs into the following directions:
Protection should always be a priority. Skin and eyes are vulnerable without it. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
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Frequently asked questions

How hot does it get in Tripoli in September?

The average high-temperature and low-temperature in Tripoli during September are 32°C (89.6°F) and 21°C (69.8°F) respectively.

When does it start to rain in Tripoli?

September is the first month it rains in Tripoli, Libya. Throughout September, in the average 1 rainfall days, it receives 9mm (0.35") of precipitation.

What is the water temperature in September in Tripoli?

In September, the average sea temperature in Tripoli is 26°C (78.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Tripoli have in September?

In Tripoli, the average day length in September is 12h and 22min.

When are sunrise and sunset in September in Tripoli?

On the first day of September in Tripoli, Libya, sunrise is at 06:42 and sunset at 19:32. On the last day of the month, sunrise is at 07:01 and sunset at 18:53 EET.

How long on average sun shines in September in Tripoli?

The average sunshine duration in September in Tripoli, Libya, is 9h.

What is the UV index intensity 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 risk from exposure to the Sun's UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Tripoli, Libya

Average temperature in September - Tripoli, Libya
  • Average high temperature in September: 32°C

The warmest month (with the highest average high temperature) is August (34°C).
The month with the lowest average high temperature is January (17°C).

  • Average low temperature in September: 21°C

The months with the highest average low temperature are July and August (22°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).

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Average rainfall in September
Tripoli, Libya

Average rainfall in September - Tripoli, Libya
  • Average rainfall in September: 9mm

The wettest month (with the highest rainfall) is December (65mm).
The driest months (with the least rainfall) are July and August (0mm).

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Average rainfall days in September
Tripoli, Libya

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

The months with the highest number of rainy days are January and December (9 days).
The months with the least rainy days are June, July and August (0 days).

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Average sea temperature in September
Tripoli, Libya

Average sea temperature in September - Tripoli, Libya
  • Average sea temperature in September: 26°C

The best month for swimming (with the highest average sea temperature) is August (27°C).
The coldest months (with the lowest average sea temperature) are February and March (16°C).

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

Average daylight in September / Average sunshine in September - Tripoli, Libya
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average UV index in September
Tripoli, Libya

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

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

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Tripoli, Libya

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