July weather forecast
Mandeville, LA

July in Mandeville, Louisiana is characteristically hot with the recorded temperature extending between 76.8°F (24.9°C) and 90.9°F (32.7°C), marking it as the year's hottest month. These high temperatures, along with a substantial presence of humidity, shape a strongly tropical climate. The intense heat of July often corresponds with an increase in rainfall, registering the highest average rainfall of 5.94" (151mm) for the year. This mix of soaring temperatures, bright sunshine, and occasional showers make for a dynamic weather pattern, thus painting an apt picture of mid-Summer.

Temperature

The onset of July marks an average high-temperature of a still hot 90.9°F (32.7°C), hardly differing from June's 90.1°F (32.3°C). During July, the nighttime temperature averages of 76.8°F (24.9°C).

Heat index

July's heat index is calculated to be an extremely hot 111.2°F (44°C). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in July is 74%.

Rainfall

In Mandeville, Louisiana, in July, during 23.7 rainfall days, 5.94" (151mm) of precipitation is typically accumulated. Throughout the year, there are 183.7 rainfall days, and 43.94" (1116mm) of precipitation is accumulated.

Snowfall

In Mandeville, snow does not fall in February through December.

Ocean temperature

In Mandeville, in July, the average water temperature is 85.8°F (29.9°C).
Note: For activities such as swimming and diving, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In Mandeville, the average length of the day in July is 13h and 53min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:06 pm. On the last day of July, sunrise is at 6:18 am and sunset at 7:54 pm CDT.

Sunshine

The average sunshine in July is 10.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In July, a regular UV index of 7 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.