July weather forecast
Djerba, Tunisia

July is the hottest period in Djerba, registering peak summer temperatures at 28.8°C (83.8°F). The strikingly persistent sunshine for 12.3 hours, coupled with a significant UV index of 7, results in very little rainfall, touching a low of just 1mm (0.04"). Forecasting the weather in July becomes considerably predictable due to constant atmospheric pressure at 1014.2mb and minimum wind gusts of 27.4km/h (17mph). The hot, arid climate makes the Mediterranean waters a welcoming escape. Characteristically, this period is ideal for relishing the pristine beaches of Djerba and appreciating the unique architecture under the bold July sunshine.

Temperature

July's arrival in Djerba sees a mild rise in the average high-temperature, transitioning from June's moderately hot 25.8°C (78.4°F) to a still warm 28.8°C (83.8°F). Djerba, in the month of July, notes an average low temperature of 26°C (78.8°F), indicating a small decrease from the daytime highs.

Heat index

The heat index value for July is evaluated at a tropical 31°C (87.8°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Heat index determinations are made taking into account the shade and light air movements. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

In July, the average relative humidity in Djerba is 65%.

Rainfall

The month with the least rainfall in Djerba is July, when the rain falls for 1 days and typically collects 1mm (0.04") of precipitation.

Sea temperature

In Djerba, in July, the average water temperature is 26°C (78.8°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

In July, the average length of the day is 14h and 9min.
On the first day of the month, sunrise is at 05:09 and sunset at 19:31. On the last day of July, in Djerba, sunrise is at 05:28 and sunset at 19:17 CET.

Sunshine

In Djerba, the average sunshine in July is 12.3h.

UV index

June through September, with an average maximum UV index of 7, are months with the highest UV index in Djerba. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: During July, 7 as the daily maximum UV index converts into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be wary! Reflections from sand and water make UV radiation more intense.