March weather forecast
Boa Vista, Brazil

March in Boa Vista shows signs of the upcoming wet season. There's also a slight surge of heat in this month, with the highest temperature reaching 34.7°C (94.5°F). With increased rainfall and humidity, the city experiences its first significant weather shift of the year. The climate is marked by an elevated level of rainfall and thick cloud cover. Wind speeds stay considerable in light of the increased weather activity.

Temperature

With its high average temperature of 34.7°C (94.5°F) and a low of 24.9°C (76.8°F), March is regarded as the warmest month.

Heat index

The heat index value for March is appraised at a blistering 43°C (109.4°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. 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. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

March is the least humid month in Boa Vista, with an average relative humidity of 57%.

Rainfall

In March, the rain falls for 11.9 days. Throughout March, 29mm (1.14") of precipitation is accumulated. Throughout the year, there are 241.8 rainfall days, and 1216mm (47.87") of precipitation is accumulated.

Daylight

In March, the average length of the day is 12h and 6min.
On the first day of the month, sunrise is at 06:12 and sunset at 18:16. On the last day of March, in Boa Vista, Brazil, sunrise is at 06:02 and sunset at 18:10 -04.

Sunshine

In Boa Vista, the average sunshine in March is 8.8h.

UV index

January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index in Boa Vista, Brazil. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 during March translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.