April weather forecastRio Sono, Brazil

Weather in April

April, the same as March, in Rio Sono, Brazil, is another tropical autumn month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 30.3°C (86.5°F).

Temperature

Rio Sono's lowest average temperatures are recorded in February through April, reaching a high of 30.3°C (86.5°F).

Heat index

During April, the heat index is evaluated at an extremely hot 40°C (104°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. 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 are of high significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In Rio Sono, the average relative humidity in April is 84%.

Rainfall

In Rio Sono, in April, it is raining for 24.1 days, with typically 107mm (4.21") of accumulated precipitation. Throughout the year, there are 198 rainfall days, and 907mm (35.71") of precipitation is accumulated.

Daylight

The average length of the day in April in Rio Sono is 11h and 53min.
On the first day of the month, sunrise is at 06:15 and sunset at 18:15. On the last day of April, sunrise is at 06:15 and sunset at 18:02 -03.

Sunshine

In Rio Sono, Brazil, the average sunshine in April is 8.2h.

UV index

February through May and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 6 during April translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.