The city is located in the east of Tunisia, more or less at the latitude of Malta, in the southern part of the Gulf of Hammamet.
Owing to the proximity to the Sahara, heat waves are possible all year round, but especially in summer, with hot, dry winds able to bring sand and dust.
Although winter is mild, there can sometimes be cold periods, during which the temperature can drop to 2/3 °C (36/37 °F) at night and remain at around 10 °C (50 °F) during the day.
In summer, during invasions of hot air from the desert, which have become more frequent in recent years, the temperature can exceed 40 °C (104 °F). The record heat is 48 °C (118.5 °F), set in July 2023. In the latter month, the average maximum temperature was 37.6 °C (99.7 °F).
. Here are the average temperatures.
January, the coldest month of the year, is generally a mild month. The average temperature is of
12.7 °C, with a minimum of
8.7 °C and a maximum of
16.7 °C.

On the coldest nights of the month, the temperature usually drops to around
4 °C.

On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
27 °C in January 1995.

Precipitation amounts to
35 mm, distributed over 6 days.
The day lasts on average 10 hours and 5 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of
15.1 kph.

The average sea temperature is of
15.9 °C. Therefore, the sea is cold for swimming.
February is generally a mild month. The average temperature is of
13.1 °C, with a minimum of
9.2 °C and a maximum of
17 °C.

On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
1 °C in February 1999.

On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
30 °C in February 1995.

Precipitation amounts to
30 mm, distributed over 6 days.
The day lasts on average 10 hours and 55 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 69%.
The average wind speed is of
16.5 kph.

The average sea temperature is of
14.9 °C. Therefore, the sea is cold for swimming.
March is generally a very mild month. The average temperature is of
15.3 °C, with a minimum of
11.3 °C and a maximum of
19.3 °C.

On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
4 °C in March 1995.

On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
37 °C in March 2001.

Precipitation amounts to
30 mm, distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 69%.
The average wind speed is of
17.3 kph.

The average sea temperature is of
15.1 °C. Therefore, the sea is cold for swimming.
April is generally a very mild month. The average temperature is of
17.6 °C, with a minimum of
13.7 °C and a maximum of
21.6 °C.

On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
5 °C in April 1993.

On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
36 °C in April 2006.

Precipitation amounts to
30 mm, distributed over 6 days.
The day lasts on average 13 hours and 10 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 69%.
The average wind speed is of
17.7 kph.

The average sea temperature is of
16.4 °C. Therefore, the sea is cold for swimming.
May is generally a warm month. The average temperature is of
21.2 °C, with a minimum of
17 °C and a maximum of
25.2 °C.

On the coldest nights of the month, the temperature usually drops to around
13 °C. However, it dropped to
10 °C in May 1992.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
43 °C in May 2006.

Precipitation amounts to
15 mm, distributed over 4 days.
The day lasts on average 14 hours and 5 minutes. So the days are long.

There are on average 10 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 67%.
The average wind speed is of
17.2 kph.

The average sea temperature is of
18.8 °C. Therefore, the sea is very cool for swimming.
June is generally a warm to hot month. The average temperature is of
25 °C, with a minimum of
20.8 °C and a maximum of
29.3 °C.

On the coldest nights of the month, the temperature usually drops to around
17 °C. However, it dropped to
13 °C in June 2007.

On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
47 °C in June 2003.

Precipitation amounts to
10 mm, distributed over 2 days.
The day lasts on average 14 hours and 35 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.

There are on average 11.5 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 65%.
The average wind speed is of
16.2 kph.

The average sea temperature is of
22.1 °C. Therefore, the sea is cool for swimming.
July is generally a very hot month. The average temperature is of
27.9 °C, with a minimum of
23.4 °C and a maximum of
32.4 °C.

On the coldest nights of the month, the temperature usually drops to around
20 °C. However, it dropped to
14 °C in July 2007.

On the warmest days of the month, the temperature usually reaches around
40.5 °C. However, it reached
47 °C in July 2012.

Precipitation amounts to only
5 mm, and all occurs in one day.
The day lasts on average 14 hours and 20 minutes. So the days are long.

There are on average 12.5 hours of sunshine per day. So, the sun shines 87% of the time.
The average humidity is 63%.
The average wind speed is of
15.5 kph.

The average sea temperature is of
25.3 °C. Therefore, the sea is warm enough for swimming.
August, the hottest month of the year, is generally a very hot month. The average temperature is of
28.6 °C, with a minimum of
24.4 °C and a maximum of
32.9 °C.

On the coldest nights of the month, the temperature usually drops to around
21 °C. However, it dropped to
20 °C in August 1995.

On the warmest days of the month, the temperature usually reaches around
41 °C. However, it reached
47 °C in August 1999.

Precipitation amounts to
10 mm, distributed over 2 days.
The day lasts on average 13 hours and 25 minutes.

There are on average 11.5 hours of sunshine per day. So, the sun shines 86% of the time.
The average humidity is 65%.
The average wind speed is of
14.9 kph.

The average sea temperature is of
26.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a warm to hot month. The average temperature is of
25.9 °C, with a minimum of
22.2 °C and a maximum of
29.6 °C.

On the coldest nights of the month, the temperature usually drops to around
18 °C. However, it dropped to
15 °C in September 2004.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
41 °C in September 1994.

Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 9.5 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 70%.
The average wind speed is of
15.6 kph.

The average sea temperature is of
26.3 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a warm to hot, muggy month. The average temperature is of
22.6 °C, with a minimum of
18.9 °C and a maximum of
26.3 °C.

On the coldest nights of the month, the temperature usually drops to around
13.5 °C. However, it dropped to
10 °C in October 1991.

On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
40 °C in October 2003.

Precipitation amounts to
55 mm, distributed over 6 days.
The day lasts on average 11 hours and 10 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
14.4 kph.

The average sea temperature is of
24.2 °C. Therefore, the sea is warm enough for swimming.
November is generally a very mild month. The average temperature is of
17.7 °C, with a minimum of
13.7 °C and a maximum of
21.7 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
5 °C in November 1998.

On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
31 °C in November 1998.

Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 10 hours and 20 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 70%.
The average wind speed is of
14.7 kph.

The average sea temperature is of
21.2 °C. Therefore, the sea is cool for swimming.
December is generally a mild month. The average temperature is of
14 °C, with a minimum of
10 °C and a maximum of
18 °C.

On the coldest nights of the month, the temperature usually drops to around
4.5 °C.

On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
30 °C in December 2009.

Precipitation amounts to
45 mm, distributed over 6 days.
The day lasts on average 9 hours and 50 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 6 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 69%.
The average wind speed is of
15.3 kph.

The average sea temperature is of
18 °C. Therefore, the sea is cold for swimming.