March weather forecast
Costa Marques, Brazil

The first month of the autumn, March, is still a warm month in Costa Marques, Brazil, with an average temperature ranging between max 29.7°C (85.5°F) and min 22.3°C (72.1°F).

Temperature

Costa Marques experiences a transition to a still moderately hot 29.7°C (85.5°F) in average high-temperatures with the arrival of March, not greatly differing from February's 28.8°C (83.8°F). Costa Marques reports an average nighttime low-temperature of 22.3°C (72.1°F) in March.

Heat index

The heat index value during March is computed to be a torrid 39°C (102.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in March is 87%.

Rainfall

In March, in Costa Marques, Brazil, the rain falls for 27.3 days. Throughout March, 176mm (6.93") of precipitation is accumulated. In Costa Marques, during the entire year, the rain falls for 215.7 days and collects up to 1318mm (51.89") of precipitation.

Daylight

In March, the average length of the day in Costa Marques is 12h and 10min.
On the first day of March in Costa Marques, sunrise is at 06:19 and sunset at 18:39. On the last day of the month, sunrise is at 06:21 and sunset at 18:20 -04.

Sunshine

The average sunshine in March in Costa Marques is 6.4h.

UV index

The months with the lowest UV index are January through May, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 6 in March translates into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.