May weather forecast
Serra da Raiz, Brazil

The last month of the autumn, May, is another hot month in Serra da Raiz, Brazil, with an average temperature varying between 30°C (86°F) and 21.3°C (70.3°F).

Temperature

The average high-temperature for May is a still hot 30°C (86°F), closely aligning with the temperature of the preceding month. Serra da Raiz's nights in May experience an average temperature drop to a pleasant 21.3°C (70.3°F).

Heat index

For May, the heat index is appraised at a fiery hot 39°C (102.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Note that heat index values are valued for light wind and location in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Serra da Raiz, the average relative humidity in May is 84%.

Rainfall

In May, in Serra da Raiz, the rain falls for 20 days. Throughout May, 55mm (2.17") of precipitation is accumulated. Throughout the year, there are 205.7 rainfall days, and 444mm (17.48") of precipitation is accumulated.

Daylight

The average length of the day in May in Serra da Raiz is 11h and 49min.
On the first day of May in Serra da Raiz, sunrise is at 05:22 and sunset at 17:14. On the last day of the month, sunrise is at 05:26 and sunset at 17:12 -03.

Sunshine

In May, the average sunshine in Serra da Raiz is 5.9h.

UV index

The months with the lowest UV index are March through September, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.