May weather forecast
Serra do Navio, Brazil

May, the last month of the spring in Serra do Navio, is another warm month, with an average temperature varying between 24.1°C (75.4°F) and 29.7°C (85.5°F).

Temperature

Upon the beginning of May, Serra do Navio's high-temperatures register at a still warm 29.7°C (85.5°F), closely mirroring the preceding month. Serra do Navio's average low-temperature during May nights is observed to be a still warm 24.1°C (75.4°F).

Heat index

May's heat index is appraised at a torrid 38°C (100.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In May, the average relative humidity is 86%.

Rainfall

In May, the rain falls for 14.5 days. Throughout May, 45mm (1.77") of precipitation is accumulated. Throughout the year, in Serra do Navio, there are 130.6 rainfall days, and 370mm (14.57") of precipitation is accumulated.

Daylight

In Serra do Navio, the average length of the day in May is 12h and 10min.
On the first day of the month, sunrise is at 06:20 and sunset at 18:29. On the last day of May, sunrise is at 06:20 and sunset at 18:30 -03.

Sunshine

In Serra do Navio, the average sunshine in May is 7.1h.

UV index

January through March, May through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.