April weather forecast
Barra, Brazil

April, the same as March, in Barra, Brazil, is another hot autumn month, with an average temperature varying between 30.2°C (86.4°F) and 22°C (71.6°F).

Temperature

The arrival of April records an average high-temperature of a still tropical 30.2°C (86.4°F), closely related to the 30.5°C (86.9°F) observed in March. Barra, during April nights, observes an average temperature of 22°C (71.6°F).

Heat index

Throughout April, the heat index is calculated to be a sweltering 36°C (96.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Consider that heat index readings are for situations in the shade and light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The months with the highest humidity in Barra are March and April, with an average relative humidity of 71%.

Rainfall

In Barra, during April, the rain falls for 16 days and regularly aggregates up to 82mm (3.23") of precipitation. Throughout the year, there are 121.7 rainfall days, and 646mm (25.43") of precipitation is accumulated.

Daylight

The average length of the day in April in Barra is 11h and 51min.
On the first day of the month, sunrise is at 05:56 and sunset at 17:55. On the last day of April, sunrise is at 05:58 and sunset at 17:41 -03.

Sunshine

The average sunshine in April in Barra is 8.9h.

UV index

The months with the highest UV index are January through May, August through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 7 in April translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.