April weather forecast
Calumbi, Brazil

April, the same as March, in Calumbi, Brazil, is another tropical autumn month, with an average temperature fluctuating between 31°C (87.8°F) and 19.9°C (67.8°F).

Temperature

Calumbi observes a minor difference in average high-temperatures between March's 32.1°C (89.8°F) and April's 31°C (87.8°F). Calumbi's average low-temperature for the month of April records at an enjoyable 19.9°C (67.8°F).

Heat index

The heat index in April is calculated to be a very hot 38°C (100.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in April in Calumbi, Brazil, is 72%.

Rainfall

In Calumbi, in April, it is raining for 18.9 days, with typically 72mm (2.83") of accumulated precipitation. Throughout the year, there are 140.8 rainfall days, and 430mm (16.93") of precipitation is accumulated.

Daylight

In Calumbi, the average length of the day in April is 11h and 56min.
On the first day of the month, sunrise is at 05:35 and sunset at 17:36. On the last day of April, in Calumbi, sunrise is at 05:34 and sunset at 17:24 -03.

Sunshine

The average sunshine in April in Calumbi, Brazil, is 7.9h.

UV index

The months with the lowest UV index are January, April through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 6 in April, converts into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.