September weather forecast
Tunis, Tunisia

St. Vincent de Paul Cathedral in Tunis, the capital city of Tunisia
St. Vincent de Paul Cathedral in Tunis, the capital city of Tunisia

Weather in September

The first month of the autumn, September, is still a tropical month in Tunis, Tunisia, with an average temperature varying between 20.7°C (69.3°F) and 30.2°C (86.4°F).
The ideal sea water temperature of 25°C (77°F) and only 4 rainfall days, with 33mm (1.3") of accumulated rainfall, makes September the best time for swimming and other water activities.

Temperature

In Tunis, the average high-temperature in September marginally drops from a hot 34.4°C (93.9°F) in August to a still tropical 30.2°C (86.4°F). In September, the average low-temperature is 20.7°C (69.3°F).

Rainfall

In September, in Tunis, Tunisia, the rain falls for 4 days. Throughout September, 33mm (1.3") of precipitation is accumulated. In Tunis, during the entire year, the rain falls for 65 days and collects up to 466mm (18.35") of precipitation.

Sea temperature

In September, the average sea temperature is 25°C (77°F).
Note: 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.

Daylight

In September, the average length of the day in Tunis is 12h and 25min.
On the first day of September, sunrise is at 05:50 and sunset at 18:48. On the last day of the month, sunrise is at 06:13 and sunset at 18:04 CET.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Tunis is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the 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 temperature in September in Tunis?

In Tunis, Tunisia, in September, the average high-temperature is 30.2°C (86.4°F), and the average low-temperature is 20.7°C (69.3°F).

How much does it rain in Tunis in September?

In Tunis, in September, during 4 rainfall days, 33mm (1.3") of precipitation is typically accumulated.

How warm is the water in September in Tunis?

In Tunis, Tunisia, in September, the average water temperature is 25°C (77°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 Tunis have in September?

In Tunis, the average day length in September is 12h and 25min.

What time are sunrise and sunset in September in Tunis?

On the first day of September, sunrise is at 05:50 and sunset at 18:48. On the last day of the month, sunrise is at 06:13 and sunset at 18:04 CET.

How many hours of sunshine does Tunis have in September?

In Tunis, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Tunis?

The average daily maximum UV index in September in Tunis is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average rainfall days
Average sunshine
Average UV index

Average temperature in September
Tunis, Tunisia

Average temperature in September - Tunis, Tunisia
  • Average high temperature in September: 30.2°C

The warmest months (with the highest average high temperature) are July and August (34.4°C).
The month with the lowest average high temperature is January (16.2°C).

  • Average low temperature in September: 20.7°C

The month with the highest average low temperature is August (22.9°C).
The coldest month (with the lowest average low temperature) is February (8.3°C).

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Average rainfall in September
Tunis, Tunisia

Average rainfall in September - Tunis, Tunisia
  • Average rainfall in September: 32.5mm

The wettest month (with the highest rainfall) is December (66.8mm).
The driest month (with the least rainfall) is July (3.1mm).

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Average rainfall days in September
Tunis, Tunisia

Average rainfall days in September - Tunis, Tunisia
  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is January (9 days).
The months with the least rainy days are July and August (1 days).

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Average sea temperature in September
Tunis, Tunisia

Average sea temperature in September - Tunis, Tunisia
  • Average sea temperature in September: 25°C

The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (15°C).

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Average daylight in September /
Average sunshine in September
Tunis, Tunisia

Average daylight in September / Average sunshine in September - Tunis, Tunisia
  • Average daylight in September: 12h and 25min

The month with the longest days is June (Average daylight: 14h and 38min).
The month with the shortest days is December (Average daylight: 9h and 41min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average UV index in September
Tunis, Tunisia

Average UV index in September - Tunis, Tunisia
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).

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