September weather forecastHammamet, Tunisia

September
Weather in September
A slight cooling trend sweeps the city as Hammamet leaves its peak summer in September. Weather conditions remain predominantly warm with ample daylight hours, yet temperatures register a noticeable decline from August's highs. Exceptionally, September renders a significant jump in rainfall to 36mm (1.42"), signifying the beginning of the wet season. Even though the sea temperature begins to drop, it is still warm enough for swimming. Simultaneously, the heat intensity slowly diminishes as the UV index steps down a notch from the summer's extreme.Temperature
In Hammamet, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's tropical 32°C (89.6°F) to a warm 29°C (84.2°F). During the nights in September, the temperature in Hammamet averages to a pleasant 20°C (68°F).Rainfall
In September, in Hammamet, the rain falls for 4 days. Throughout September, 36mm (1.42") of precipitation is accumulated. In Hammamet, during the entire year, the rain falls for 76 days and collects up to 428mm (16.85") of precipitation.Sea temperature
In Hammamet, in September, the average water temperature is 25.5°C (77.9°F).Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations.
Daylight
The average length of the day in September in Hammamet, Tunisia, is 12h and 25min.On the first day of the month, sunrise is at 05:49 and sunset at 18:45. On the last day of September, in Hammamet, Tunisia, sunrise is at 06:12 and sunset at 18:02 CET.
Sunshine
In Hammamet, Tunisia, the average sunshine in September is 9h.UV index
In Hammamet, Tunisia, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hammamet, Tunisia
- Average high temperature in September: 29°C
The warmest months (with the highest average high temperature) are July and August (32°C).
The month with the lowest average high temperature is January (15°C).
- Average low temperature in September: 20°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is February (7°C).
Average rainfall in September
Hammamet, Tunisia
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is October (62mm).
The driest month (with the least rainfall) is July (4mm).
Average rainfall days in September
Hammamet, Tunisia
- Average rainfall days in September: 4 days
The months with the highest number of rainy days are January and December (10 days).
The month with the least rainy days is July (1 days).
Average sea temperature in September
Hammamet, Tunisia
- Average sea temperature in September: 25.5°C
The best month for swimming (with the highest average sea temperature) is August (26.4°C).
The coldest month (with the lowest average sea temperature) is February (14.6°C).
Average daylight in September /
Average sunshine in September
Hammamet, Tunisia
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h
The months with the most sunshine are July and August (Average sunshine: 11h).
The months with the least sunshine are January and December (Average sunshine: 5h).
Average UV index in September
Hammamet, Tunisia
- Average UV index in September: 7
The months with the highest UV index are June and July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).





