July weather forecast
Sfax, Tunisia

Sfax enjoys the zenith of summer in July, with the highest maximum temperature of 32°C (89.6°F) and a warm minimum of 19.9°C (67.8°F). The city continues to experience its ongoing dry spell with almost no rainfall, resulting in a total of 2mm (0.08") throughout the month. With the clear sky predominantly ruling the skyline, July delivers an enduring summer experience. Sunlight shines amply, boasting the year's longest average sunshine duration of 12.2 hours per day.

Temperature

July's arrival coincides with a subtle temperature rise, moving from June's warm 28.9°C (84°F) to a tropical 32°C (89.6°F). Sfax records a consistent low-temperature average of 19.9°C (67.8°F) during July, indicating a significant difference from the daytime heat.

Heat index

The heat index value during July is evaluated at a sweltering 37°C (98.6°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

With an average relative humidity of 59%, July is the least humid month in Sfax, Tunisia.

Rainfall

July is the month with the least rainfall, with 2mm (0.08") of accumulated precipitation.

Sea temperature

In Sfax, in July, the average water temperature is 26.5°C (79.7°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In July, the average length of the day in Sfax is 14h and 13min.
On the first day of the month, sunrise is at 05:07 and sunset at 19:34. On the last day of July, sunrise is at 05:26 and sunset at 19:20 CET.

Sunshine

The month with the most sunshine in Sfax is July, with an average of 12.2h of sunshine.

UV index

The months with the highest UV index in Sfax are June through August, with an average maximum UV index of 10. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 10 in July translates into the following recommendations:
Protection is paramount; otherwise, swift harm can come to the skin and eyes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Caution! The mirror effect of sand and water ups the UV radiation strength.