March weather forecast
São Sebastião da Boa Vista, Brazil

March, the first month of the autumn in São Sebastião da Boa Vista, is still a tropical month, with temperature in the range of an average high of 30.2°C (86.4°F) and an average low of 23.1°C (73.6°F).

Temperature

Shifting into March, São Sebastião da Boa Vista records an average high-temperature of a still hot 30.2°C (86.4°F), presenting minor fluctuations compared to the previous month. The average low-temperature, in March, is a warm 23.1°C (73.6°F).

Heat index

The average heat index in March is estimated at a blistering 41°C (105.8°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The average relative humidity in March in São Sebastião da Boa Vista is 89%.

Rainfall

In São Sebastião da Boa Vista, Brazil, in March, during 30.5 rainfall days, 297mm (11.69") of precipitation is typically accumulated. In São Sebastião da Boa Vista, during the entire year, the rain falls for 285.2 days and collects up to 1825mm (71.85") of precipitation.

Daylight

In São Sebastião da Boa Vista, Brazil, the average length of the day in March is 12h and 7min.
On the first day of the month, sunrise is at 06:26 and sunset at 18:34. On the last day of March, sunrise is at 06:19 and sunset at 18:24 -03.

Sunshine

The months with the least sunshine are February and March, with an average of 6.4h of sunshine.

UV index

January through April and December, with an average maximum UV index of 6, are months with the lowest UV index in São Sebastião da Boa Vista. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during March morphs into the following directions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.