March weather forecast
Guaiúba, Brazil

The first month of the autumn, March, is still a hot month in Guaiúba, Brazil, with an average temperature varying between 31.1°C (88°F) and 24°C (75.2°F).

Temperature

The start of March is marked by an average high temperature of a still hot 31.1°C (88°F), showing little divergence from February. An average low-temperature of 24°C (75.2°F) is anticipated throughout the nights during March.

Heat index

For most parts of March, the heat index is evaluated at a scorching 41°C (105.8°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Guaiúba, the average relative humidity in March is 79%.

Rainfall

In Guaiúba, during March, the rain falls for 23.6 days and regularly aggregates up to 91mm (3.58") of precipitation. In Guaiúba, during the entire year, the rain falls for 183.1 days and collects up to 511mm (20.12") of precipitation.

Daylight

In March, the average length of the day in Guaiúba is 12h and 8min.
On the first day of the month, sunrise is at 05:41 and sunset at 17:52. On the last day of March, in Guaiúba, sunrise is at 05:36 and sunset at 17:40 -03.

Sunshine

The month with the least sunshine is March, with an average of 6.9h of sunshine.

UV index

The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In March, the average maximum UV index of 7 translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.