July weather forecast
Dérac, Haiti

July, the same as June, is a moderately hot summer month in Dérac, Haiti, with temperature in the range of an average low of 24.4°C (75.9°F) and an average high of 29.7°C (85.5°F).

Temperature

Transitioning into July, Dérac records an average high-temperature of a still warm 29.7°C (85.5°F), almost identical to June's 29.4°C (84.9°F). Throughout the month of July, Dérac witnesses an average temperature of 24.4°C (75.9°F).

Heat index

For most parts of July, the heat index is computed to be a torrid 36°C (96.8°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 essentially critical for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in July is 77%.

Rainfall

The month with the most rainfall is July, when the rain falls for 21.6 days and typically aggregates up to 84mm (3.31") of precipitation.

Sea temperature

In July, the average sea temperature is 28.7°C (83.7°F).
Note: Water activities including swimming and diving are pleasurable in temperatures between 25°C (77°F) and 29°C (84.2°F), ensuring comfort and enjoyment for extended time frames.

Daylight

In Dérac, Haiti, the average length of the day in July is 13h and 11min.
On the first day of July, sunrise is at 06:12 and sunset at 19:30. On the last day of the month, sunrise is at 06:23 and sunset at 19:24 EDT.

Sunshine

In July, the average sunshine is 11.5h.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during July translates into the following guidance:
Take precautions against overexposure. Protection against sun damage is needed. 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. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be mindful! Sand and water reflections can up the Sun's UV exposure.