May weather forecast
Serra Negra do Norte, Brazil

May, the last month of the autumn in Serra Negra do Norte, is another hot month, with an average temperature ranging between max 32.5°C (90.5°F) and min 22.3°C (72.1°F).

Temperature

May denotes a minimal variation in the average high-temperature to a still hot 32.5°C (90.5°F) from April's 33.1°C (91.6°F). During May, Serra Negra do Norte consistently records a temperature low averaging an agreeable 22.3°C (72.1°F).

Heat index

During May, the heat index is appraised at an extremely hot 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The months with the highest humidity in Serra Negra do Norte are April and May, with an average relative humidity of 70%.

Rainfall

In Serra Negra do Norte, Brazil, in May, during 16.9 rainfall days, 68mm (2.68") of precipitation is typically accumulated. Throughout the year, in Serra Negra do Norte, there are 122.6 rainfall days, and 442mm (17.4") of precipitation is accumulated.

Daylight

In Serra Negra do Norte, the average length of the day in May is 11h and 49min.
On the first day of May, sunrise is at 05:30 and sunset at 17:22. On the last day of the month, sunrise is at 05:34 and sunset at 17:20 -03.

Sunshine

The average sunshine in May in Serra Negra do Norte is 8.8h.

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 are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 in May translates into these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.