May weather forecastPenalva, Brazil

Weather in May

The last month of the autumn, May, is also a hot month in Penalva, Brazil, with an average temperature ranging between min 22.5°C (72.5°F) and max 30.3°C (86.5°F).

Temperature

The advent of May sees the average high-temperature at a still hot 30.3°C (86.5°F), subtly shifted from April's 30.2°C (86.4°F). In Penalva, the average low-temperature during the month of May is a pleasant 22.5°C (72.5°F).

Heat index

Throughout May, the heat index is appraised at an extremely hot 42°C (107.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The months with the highest humidity in Penalva are March through May, with an average relative humidity of 90%.

Rainfall

In Penalva, in May, it is raining for 27.8 days, with typically 138mm (5.43") of accumulated precipitation. Throughout the year, there are 265.4 rainfall days, and 1410mm (55.51") of precipitation is accumulated.

Daylight

In Penalva, the average length of the day in May is 11h and 58min.
On the first day of May in Penalva, Brazil, sunrise is at 05:57 and sunset at 17:57. On the last day of the month, sunrise is at 06:00 and sunset at 17:56 -03.

Sunshine

With an average of 5.8h of sunshine, May has the least sunshine of the year in Penalva.

UV index

May, July through November, with an average maximum UV index of 7, are months with the highest UV index in Penalva. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In May, a daily UV index of 7 turns into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.