April weather forecast
Oiapoque, Brazil

April, like March, in Oiapoque, Brazil, is another warm spring month, with an average temperature fluctuating between 28.8°C (83.8°F) and 22.4°C (72.3°F).

Temperature

April presents an average high-temperature of a still moderately hot 28.8°C (83.8°F), mirroring March. During April, Oiapoque experiences an average low-temperature of 22.4°C (72.3°F) at night.

Heat index

The heat index value for April is evaluated at a torrid 36°C (96.8°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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. 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. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Oiapoque, the average relative humidity in April is 90%.

Rainfall

In Oiapoque, during April, the rain falls for 26.5 days and regularly aggregates up to 142mm (5.59") of precipitation. In Oiapoque, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

In Oiapoque, Brazil, the average length of the day in April is 12h and 13min.
On the first day of April, sunrise is at 06:26 and sunset at 18:35. On the last day of the month, sunrise is at 06:16 and sunset at 18:32 -03.

Sunshine

In April, the average sunshine in Oiapoque is 4.8h.

UV index

The months with the lowest UV index in Oiapoque are January through July, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During April, 6 as the daily maximum UV index converts into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.