March weather forecast
Chaval, Brazil

The first month of the autumn, March, is still a tropical month in Chaval, Brazil, with an average temperature fluctuating between 30.8°C (87.4°F) and 23.2°C (73.8°F).

Temperature

The onset of March highlights an average high temperature of a still tropical 30.8°C (87.4°F), mirroring the climate in February. During March, the nighttime temperature in Chaval averages to a moderately hot 23.2°C (73.8°F).

Heat index

For March, the heat index is estimated at a scorching 41°C (105.8°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In March, the average relative humidity is 83%.

Rainfall

The month with the most rainfall is March, when the rain falls for 21.3 days and typically aggregates up to 118mm (4.65") of precipitation.

Daylight

In March, the average length of the day in Chaval is 12h and 8min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:02. On the last day of March, sunrise is at 05:46 and sunset at 17:51 -03.

Sunshine

With an average of 6.9h of sunshine, March has the least sunshine of the year in Chaval.

UV index

The months with the highest UV index in Chaval are February through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 7 in March translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.