September weather forecast
Hammamet, Tunisia

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.