May weather forecast
Santa Quitéria do Maranhão, Brazil

The last month of the autumn, May, is another tropical month in Santa Quitéria do Maranhão, Brazil, with an average temperature fluctuating between 31°C (87.8°F) and 22.5°C (72.5°F).

Temperature

In May, Santa Quitéria do Maranhão experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 30.9°C (87.6°F) in April to a still hot 31°C (87.8°F). During May, Santa Quitéria do Maranhão's temperature averages to an agreeable 22.5°C (72.5°F) at night.

Heat index

In May, the average heat index is appraised at a scorching 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In May, the average relative humidity in Santa Quitéria do Maranhão is 86%.

Rainfall

In May, in Santa Quitéria do Maranhão, the rain falls for 25.7 days. Throughout May, 126mm (4.96") of precipitation is accumulated. In Santa Quitéria do Maranhão, Brazil, during the entire year, the rain falls for 221.9 days and collects up to 1140mm (44.88") of precipitation.

Daylight

The average length of the day in May in Santa Quitéria do Maranhão is 11h and 58min.
On the first day of the month, sunrise is at 05:47 and sunset at 17:46. On the last day of May, in Santa Quitéria do Maranhão, Brazil, sunrise is at 05:50 and sunset at 17:46 -03.

Sunshine

The average sunshine in May is 7.4h.

UV index

January, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 7 in May suggests the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.