March weather forecast
São Mateus, Brazil

March, the first month of the autumn in São Mateus, is still a warm month, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 29.8°C (85.6°F).

Temperature

São Mateus marks the onset of March with an average high-temperature of a moderately hot 29.8°C (85.6°F), a subtle shift from February's 30.1°C (86.2°F). São Mateus's temperature drops to an average low of 22.8°C (73°F) during the nights of March.

Heat index

The heat index in March is appraised at a torrid 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical 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 high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The months with the highest humidity are March, April, June, November and December, with an average relative humidity of 82%.

Rainfall

In March, the rain falls for 20.7 days. Throughout March, 93mm (3.66") of precipitation is accumulated. Throughout the year, in São Mateus, Brazil, there are 194.6 rainfall days, and 770mm (30.31") of precipitation is accumulated.

Daylight

In São Mateus, Brazil, the average length of the day in March is 12h and 11min.
On the first day of March, sunrise is at 05:38 and sunset at 18:05. On the last day of the month, sunrise is at 05:45 and sunset at 17:40 -03.

Sunshine

The average sunshine in March is 8.3h.

UV index

The months with the highest UV index in São Mateus, Brazil, are January through March and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In March, the maximum UV index of 7 suggests these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.