April weather forecast
Olinda, Brazil

April, like March, is another tropical autumn month in Olinda, Brazil, with an average temperature varying between 30°C (86°F) and 24.8°C (76.6°F).

Temperature

The introduction of April notes a subtle temperature variation to a still hot 30°C (86°F) from March's 30.4°C (86.7°F). Olinda records an average low-temperature of 24.8°C (76.6°F) throughout the month of April.

Heat index

For April, the heat index is computed to be a sweltering 37°C (98.6°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Olinda, the average relative humidity in April is 78%.

Rainfall

In Olinda, in April, it is raining for 22.8 days, with typically 89mm (3.5") of accumulated precipitation. Throughout the year, in Olinda, there are 250.3 rainfall days, and 716mm (28.19") of precipitation is accumulated.

Sea temperature

In Olinda, in April, the average water temperature is 28.8°C (83.8°F).
Note: Water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm, making water activities enjoyable for prolonged periods without any uncomfortable sensations.

Daylight

In April, the average length of the day in Olinda is 11h and 56min.
On the first day of the month, sunrise is at 05:22 and sunset at 17:23. On the last day of April, sunrise is at 05:21 and sunset at 17:11 -03.

Sunshine

In April, the average sunshine in Olinda is 7.7h.

UV index

January through May, September through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In April, a daily UV index of 7 turns into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! Sand and water increase UV exposure due to their reflective properties.