March weather forecast
Riacho Frio, Brazil

March, the first month of the autumn in Riacho Frio, is also a hot month, with temperature in the range of an average high of 30.2°C (86.4°F) and an average low of 19.8°C (67.6°F).

Temperature

The average high-temperature is a still tropical 30.2°C (86.4°F) in March, hardly different from the 30°C (86°F) recorded in February. During the month of March, the temperature in Riacho Frio, Brazil, falls to an average of 19.8°C (67.6°F).

Heat index

The heat index value for March is estimated at a torrid 39°C (102.2°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

February and March, with an average relative humidity of 81%, are the most humid months in Riacho Frio.

Rainfall

March is the month with the most rainfall in Riacho Frio. Rain falls for 20.9 days and accumulates 112mm (4.41") of precipitation.

Daylight

In March, the average length of the day in Riacho Frio is 12h and 9min.
On the first day of the month, sunrise is at 06:03 and sunset at 18:20. On the last day of March, in Riacho Frio, sunrise is at 06:03 and sunset at 18:04 -03.

Sunshine

The average sunshine in March is 8.1h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Riacho Frio. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in March transforms into this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.