May weather forecast
Brejo dos Santos, Brazil

May, the last month of the autumn in Brejo dos Santos, is another hot month, with an average temperature fluctuating between 31.8°C (89.2°F) and 20.8°C (69.4°F).

Temperature

The shift into May reveals an average high-temperature of a still hot 31.8°C (89.2°F), closely mirroring April's climate. During May, the average low-temperature is a pleasant 20.8°C (69.4°F).

Heat index

In May, the average heat index is evaluated at a scorching 40°C (104°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

April and May, with an average relative humidity of 71%, are the most humid months.

Rainfall

In May, in Brejo dos Santos, the rain falls for 17.9 days. Throughout May, 62mm (2.44") of precipitation is accumulated. In Brejo dos Santos, Brazil, during the entire year, the rain falls for 148.4 days and collects up to 508mm (20") of precipitation.

Daylight

In May, the average length of the day in Brejo dos Santos is 11h and 50min.
On the first day of May, sunrise is at 05:31 and sunset at 17:24. On the last day of the month, sunrise is at 05:35 and sunset at 17:22 -03.

Sunshine

In Brejo dos Santos, the average sunshine in May is 8.8h.

UV index

The months with the lowest UV index in Brejo dos Santos are April through July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 6 in May suggests the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.