May weather forecast
Altos, Brazil

May, the last month of the autumn in Altos, is another tropical month, with an average temperature ranging between max 31.5°C (88.7°F) and min 22.6°C (72.7°F).

Temperature

The start of May marks an average high-temperature of a still tropical 31.5°C (88.7°F), hardly distinguishable from the conditions in April. In Altos, an average temperature of 22.6°C (72.7°F) is noted during May nights.

Heat index

The average heat index in May is appraised at a scorching 41°C (105.8°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. 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 a value derived by merging air temperature with the humidity to convey how the climate feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. 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 largely significant for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In May, the average relative humidity in Altos is 77%.

Rainfall

In May, the rain falls for 25.1 days. Throughout May, 139mm (5.47") of precipitation is accumulated. Throughout the year, there are 220.8 rainfall days, and 1560mm (61.42") of precipitation is accumulated.

Daylight

In May, the average length of the day is 11h and 53min.
On the first day of May, sunrise is at 05:48 and sunset at 17:44. On the last day of the month, sunrise is at 05:52 and sunset at 17:43 -03.

Sunshine

The average sunshine in May is 7.5h.

UV index

In May, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.