March weather forecast
Altos, Brazil

The first month of the autumn, March, is still a hot month in Altos, Brazil, with temperature in the range of an average high of 31.6°C (88.9°F) and an average low of 23°C (73.4°F).

Temperature

An average high-temperature of a still tropical 31.6°C (88.9°F) marks March, exhibiting a close resemblance to the conditions in February. During March, Altos consistently records a temperature low averaging a moderately hot 23°C (73.4°F).

Heat index

The average heat index in March is appraised at a blistering 43°C (109.4°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. 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. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The months with the highest humidity in Altos are March and April, with an average relative humidity of 81%.

Rainfall

The month with the most rainfall is March, when the rain falls for 29.3 days and typically aggregates up to 315mm (12.4") of precipitation.

Daylight

In March, the average length of the day in Altos is 12h and 8min.
On the first day of March in Altos, sunrise is at 05:56 and sunset at 18:08. On the last day of the month, sunrise is at 05:51 and sunset at 17:55 -03.

Sunshine

In Altos, the average sunshine in March is 7.2h.

UV index

In Altos, the average daily maximum UV index in March is 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In March, the maximum UV index of 7 transforms into these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.