May weather forecast
Oiapoque, Brazil

The last month of the spring, May, is also a moderately hot month in Oiapoque, Brazil, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 28.8°C (83.8°F).

Temperature

Oiapoque experiences an average high-temperature of a still warm 28.8°C (83.8°F) with the onset of May, reflecting the conditions of April. May witnesses an average low-temperature hovering around an agreeable 22.3°C (72.1°F).

Heat index

The average heat index in May is calculated to be a torrid 37°C (98.6°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The most humid month is May, with an average relative humidity of 91%.

Rainfall

The month with the most rainfall is May, when the rain falls for 28.9 days and typically aggregates up to 195mm (7.68") of precipitation.

Daylight

In May, the average length of the day is 12h and 18min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:32. On the last day of May, sunrise is at 06:15 and sunset at 18:35 -03.

Sunshine

In Oiapoque, the average sunshine in May is 5.5h.

UV index

The months with the lowest UV index are January through July, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.