May weather forecast
Oiapoque, Brazil

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

Temperature

Oiapoque ushers in May with an average high temperature of a still warm 28.8°C (83.8°F), mirroring closely the previous month. Oiapoque records an average low of 22.3°C (72.1°F) throughout the nights in May.

Heat index

May's mean heat index is evaluated at a very hot 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Keep in mind the heat index values are meant for areas in shade and with light wind. 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 'felt air temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

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

Rainfall

May is the month with the most rainfall in Oiapoque. Rain falls for 28.9 days and accumulates 195mm (7.68") of precipitation.

Daylight

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

Sunshine

In May, the average sunshine in Oiapoque 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 of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.