In Djerba, a small Tunisian island in the Gulf of Gabès, the climate is
, but tempered by the sea. Temperatures are similar to those of the Mediterranean climate, although the summer is particularly hot. Indeed, 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.
is very poor, around 200 millimeters (8 inches) per year, and it's concentrated in the cold half of the year.
, from December to February, is mild, with highs around 16/18 °C (61/64 °F) and lows around 10 °C (50 °F). Mild and sunny days are frequent also in this season, but some days can be a bit cold and windy, and sometimes at night, the temperature can approach freezing (0 °C or 32 °F). There are also some periods of bad weather, with possible rain, though generally not abundant. Sometimes, the south wind blows, and in these cases, the temperature can go up to about 25 °C (77 °F).
is gradually warmer and less rainy. Already in March, when the south wind blows, the temperature can exceed 35 °C (95 °F). By May, the rains become rare.
, from June to September, is hot and sunny. The coolest (or least hot) days, with daytime temperatures around 30 °C (86 °F) are also the most sultry, even though the heat is tempered by the breeze. These hot and sultry days alternate with hotter but also drier days, when a bit of wind from the desert brings higher temperatures, with highs around 34/35 °C (93/95 °F).
On the other hand, when the south wind blows more intensely, the temperature can reach or exceed 40 °C (104 °F); in the worst moments, it can reach 45 °C (113 °F). In these cases, outdoor activities, and even sunbathing, can be difficult.
The heat record is 47 °C (116.5 °F), set in August 2022 and July 2023. The latter was an exceptional month, in fact there were ten days with a temperature equal to or higher than 40 °C (104 °F), and the average of maximum was 37 °C (98.6 °F).
is short, and lasts a couple of months, ie in October and November, during which the first disturbances occur, with the first rains, while the south wind can bring the last hot days.
in Djerba is never scarce, in fact, there are many sunny days even in winter. However, the sunniest season is summer, when clear skies prevail, although there can sometimes be a hazy sky or high clouds, in periods when the south wind blows.
in Djerba is warm enough for swimming from July to October, when it equals or exceeds 25 °C (77 °F). In June, it is still a bit cool, but overall acceptable.
to visit Djerba and enjoy its sun and beaches is the summer, from June to September, although it must be said that sometimes it can be very hot.
In May, the temperature is warm enough, especially in the second half of the month, but the sea is still cool.
As mentioned, in October, the sea is still warm, and there are still many warm and sunny days, but the first depressions, which bring the first rains in the north of the country, can bring some cloudiness and a bit of wind. However, you can generally still go in the first half of the month.
. Here are the average temperatures.
January, the coldest month of the year, is generally a mild month. The average temperature is of
13.2 °C, with a minimum of
9.3 °C and a maximum of
17 °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
27.7 °C in January 2002.
Precipitation amounts to
20 mm, distributed over 4 days.
The day lasts on average 10 hours and 10 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 69%.
The average wind speed is of
16.4 kph.
The average sea temperature is of
16.1 °C. Therefore, the sea is cold for swimming.
February is generally a mild month. The average temperature is of
13.8 °C, with a minimum of
9.6 °C and a maximum of
18.1 °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
24.5 °C. However, it reached
35.2 °C in February 2010.
Precipitation amounts to
20 mm, distributed over 4 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 65%.
The average wind speed is of
16.8 kph.
The average sea temperature is of
15 °C. Therefore, the sea is cold for swimming.
March is generally a very mild month. The average temperature is of
16.4 °C, with a minimum of
11.9 °C and a maximum of
21 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
37.2 °C in March 2001.
Precipitation amounts to
20 mm, distributed over 3 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 64%.
The average wind speed is of
17.1 kph.
The average sea temperature is of
15.6 °C. Therefore, the sea is cold for swimming.
April is generally a warm month. The average temperature is of
19.1 °C, with a minimum of
14.5 °C and a maximum of
23.7 °C.
On the coldest nights of the month, the temperature usually drops to around
9.5 °C.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
38.6 °C in April 2005.
Precipitation amounts to
15 mm, distributed over 4 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 63%.
The average wind speed is of
17.6 kph.
The average sea temperature is of
17.3 °C. Therefore, the sea is cold for swimming.
May is generally a warm month. The average temperature is of
22.4 °C, with a minimum of
17.8 °C and a maximum of
27.1 °C.
On the coldest nights of the month, the temperature usually drops to around
12.5 °C.
On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
43.7 °C in May 2005.
Precipitation amounts to only
7 mm, distributed over 2 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 62%.
The average wind speed is of
17.6 kph.
The average sea temperature is of
20 °C. Therefore, the sea is very cool for swimming.
June is generally a warm to hot month. The average temperature is of
25.9 °C, with a minimum of
21.1 °C and a maximum of
30.6 °C.
On the coldest nights of the month, the temperature usually drops to around
16 °C.
On the warmest days of the month, the temperature usually reaches around
41.5 °C. However, it reached
46 °C in June 2016.
Precipitation amounts to only
1 mm, and all occurs in one day.
The day lasts on average 14 hours and 25 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 10.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 61%.
The average wind speed is of
17.1 kph.
The average sea temperature is of
23.2 °C. Therefore, the sea can be considered barely acceptable for swimming.
July is generally a very hot month. The average temperature is of
28.4 °C, with a minimum of
23.5 °C and a maximum of
33.3 °C.
On the coldest nights of the month, the temperature usually drops to around
18 °C.
On the warmest days of the month, the temperature usually reaches around
42 °C. However, it reached
46.1 °C in July 2017.
Precipitation amounts to only
0 mm, so on average it never rains in the whole month.
The day lasts on average 14 hours and 5 minutes. So the days are long.
There are on average 12 hours of sunshine per day. So, the sun shines 86% of the time.
The average humidity is 60%.
The average wind speed is of
15.2 kph.
The average sea temperature is of
26.6 °C. Therefore, the sea is pleasantly warm and allows long swims.
August, the hottest month of the year, is generally a very hot month. The average temperature is of
29.3 °C, with a minimum of
24.7 °C and a maximum of
34 °C.
On the coldest nights of the month, the temperature usually drops to around
21 °C.
On the warmest days of the month, the temperature usually reaches around
42.5 °C. However, it reached
46.3 °C in August 2002.
Precipitation amounts to only
1 mm, and all occurs in one day.
The day lasts on average 13 hours and 20 minutes.
There are on average 11.5 hours of sunshine per day. So, the sun shines 85% of the time.
The average humidity is 62%.
The average wind speed is of
14.4 kph.
The average sea temperature is of
28.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a warm to hot month. The average temperature is of
27.3 °C, with a minimum of
23.2 °C and a maximum of
31.5 °C.
On the coldest nights of the month, the temperature usually drops to around
18 °C.
On the warmest days of the month, the temperature usually reaches around
39 °C. However, it reached
42.8 °C in September 2011.
Precipitation amounts to
15 mm, distributed over 2 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 65%.
The average wind speed is of
15.3 kph.
The average sea temperature is of
27.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a warm to hot month. The average temperature is of
23.9 °C, with a minimum of
19.6 °C and a maximum of
28.1 °C.
On the coldest nights of the month, the temperature usually drops to around
15 °C.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
42.2 °C in October 2020.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 66%.
The average wind speed is of
14 kph.
The average sea temperature is of
25.8 °C. Therefore, the sea is warm enough for swimming.
November is generally a warm month. The average temperature is of
18.8 °C, with a minimum of
14.7 °C and a maximum of
23 °C.
On the coldest nights of the month, the temperature usually drops to around
9 °C.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
33.5 °C in November 2014.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 64%.
The average wind speed is of
15.6 kph.
The average sea temperature is of
22.7 °C. Therefore, the sea can be considered barely acceptable for swimming.
December is generally a very mild month. The average temperature is of
14.7 °C, with a minimum of
11.1 °C and a maximum of
18.3 °C.
On the coldest nights of the month, the temperature usually drops to around
6 °C.
On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
28.6 °C in December 2004.
Precipitation amounts to
30 mm, distributed over 4 days.
The day lasts on average 9 hours and 55 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 6.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 66%.
The average wind speed is of
17.4 kph.
The average sea temperature is of
18.9 °C. Therefore, the sea is very cool for swimming.