May weather forecast
Sfax, Tunisia

In May, Sfax starts feeling the heat of the approaching summer season. With temperatures soaring from 14.4°C (57.9°F) to 25.4°C (77.7°F), the air becomes noticeably warmer. Also, rainfall dips significantly to an average of 9mm (0.35") over two days, leading to drier conditions. As the city reverberates with summery vibes, an impressive peak in the average sunshine hours to ten per day sustains a vibrant atmosphere. The relative humidity also drops a bit, offering a more relaxed environment.

Temperature

May's onset in Sfax brings a minor rise in the average high-temperature, moving from an agreeable 21.8°C (71.2°F) in April to a moderately hot 25.4°C (77.7°F). Sfax experiences an average low-temperature reading of 14.4°C (57.9°F) throughout May.

Humidity

The average relative humidity in May is 62%.

Rainfall

In Sfax, in May, during 2 rainfall days, 9mm (0.35") of precipitation is typically accumulated. Throughout the year, there are 32 rainfall days, and 237mm (9.33") of precipitation is accumulated.

Sea temperature

In Sfax, in May, the average water temperature is 20°C (68°F).
Note: For most, swimming in 20°C (68°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).

Daylight

In May, the average length of the day is 13h and 59min.
On the first day of the month, sunrise is at 05:25 and sunset at 19:02. On the last day of May, in Sfax, sunrise is at 05:04 and sunset at 19:24 CET.

Sunshine

The average sunshine in May is 10h.

UV index

In May, the average daily maximum UV index in Sfax is 9. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for average individuals.
Note: During May, 9 as the daily maximum UV index converts into the following advice:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.