April weather forecast
Serra Negra do Norte, Brazil

April, the same as March, in Serra Negra do Norte, Brazil, is another tropical autumn month, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 33.1°C (91.6°F).

Temperature

Serra Negra do Norte marks the start of April with an average high-temperature of a still hot 33.1°C (91.6°F), hinting at a slight fluctuation from March's 34°C (93.2°F). Serra Negra do Norte's average low-temperature during April nights is observed to be an agreeable 22.8°C (73°F).

Heat index

The heat index for April is appraised at an extremely hot 44°C (111.2°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The months with the highest humidity are April and May, with an average relative humidity of 70%.

Rainfall

In Serra Negra do Norte, in April, during 21.5 rainfall days, 101mm (3.98") of precipitation is typically accumulated. In Serra Negra do Norte, Brazil, during the entire year, the rain falls for 122.6 days and collects up to 442mm (17.4") of precipitation.

Daylight

In Serra Negra do Norte, the average length of the day in April is 11h and 58min.
On the first day of the month, sunrise is at 05:32 and sunset at 17:34. On the last day of April, sunrise is at 05:30 and sunset at 17:23 -03.

Sunshine

In April, the average sunshine is 8.7h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Serra Negra do Norte are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during April translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.