May weather forecast
São Sebastião do Tocantins, Brazil

May, the last month of the autumn in São Sebastião do Tocantins, is a tropical month, with an average temperature ranging between max 30.3°C (86.5°F) and min 21°C (69.8°F).

Temperature

May's commencement is accompanied by an average high-temperature of a tropical 30.3°C (86.5°F), diverging marginally from April's 29.5°C (85.1°F). An average low-temperature of 21°C (69.8°F) marks the month of May.

Heat index

The heat index value during May is evaluated at an extremely hot 41°C (105.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in May in São Sebastião do Tocantins is 86%.

Rainfall

In São Sebastião do Tocantins, in May, it is raining for 24.5 days, with typically 117mm (4.61") of accumulated precipitation. In São Sebastião do Tocantins, Brazil, during the entire year, the rain falls for 252.6 days and collects up to 1607mm (63.27") of precipitation.

Daylight

The average length of the day in May is 11h and 53min.
On the first day of May in São Sebastião do Tocantins, sunrise is at 06:12 and sunset at 18:07. On the last day of the month, sunrise is at 06:15 and sunset at 18:05 -03.

Sunshine

In May, the average sunshine is 7.5h.

UV index

January through June, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.