July weather forecast
Usulutan, El Salvador

July in Usulutan experiences a decrease in rainfall, falling to roughly 121mm (4.76"). This month marks the beginning of a downward temperature trend, which results in pleasant weather. The humidity in July hovers around the same level as June, promoting steady weather conditions. Despite the receding rainfall pattern, the month is still classified within the wet season. With the constant daylight hours and fair amount of sunshine, July offers a striking balance between warm and wet conditions.

Temperature

As Usulutan transitions into July, the average high-temperature stands at a still hot 31.9°C (89.4°F), offering little variation from the preceding month. An average low-temperature of 23.1°C (73.6°F) is observed during July nights.

Heat index

Throughout July, the heat index is appraised at a blistering 42°C (107.6°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in July in Usulutan is 76%.

Rainfall

In July, in Usulutan, the rain falls for 24 days. Throughout July, 121mm (4.76") of precipitation is accumulated. Throughout the year, there are 206.2 rainfall days, and 1242mm (48.9") of precipitation is accumulated.

Daylight

In Usulutan, the average length of the day in July is 12h and 49min.
On the first day of July, sunrise is at 05:30 and sunset at 18:24. On the last day of the month, sunrise is at 05:38 and sunset at 18:21 CST.

Sunshine

April and July, with an average of 11.4h of sunshine, are months with the most sunshine in Usulutan.

UV index

January through September and December, with an average maximum UV index of 7, are months with the highest UV index in Usulutan. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 7 in July translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.