March weather forecast
São Miguel do Iguaçu, Brazil

The first month of the autumn, March, is still a warm month in São Miguel do Iguaçu, Brazil, with an average temperature varying between 19.1°C (66.4°F) and 29.6°C (85.3°F).

Temperature

The advent of March sees the average high-temperature at a warm 29.6°C (85.3°F), subtly shifted from February's 30.7°C (87.3°F). São Miguel do Iguaçu reports a consistent average low-temperature of 19.1°C (66.4°F) throughout March nights.

Heat index

For most parts of March, the heat index is estimated at a sweltering 36°C (96.8°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In March, the average relative humidity is 79%.

Rainfall

In São Miguel do Iguaçu, during March, the rain falls for 14.3 days and regularly aggregates up to 71mm (2.8") of precipitation. In São Miguel do Iguaçu, during the entire year, the rain falls for 165.1 days and collects up to 1005mm (39.57") of precipitation.

Daylight

In São Miguel do Iguaçu, Brazil, the average length of the day in March is 12h and 14min.
On the first day of the month, sunrise is at 06:31 and sunset at 19:06. On the last day of March, in São Miguel do Iguaçu, sunrise is at 06:45 and sunset at 18:36 -03.

Sunshine

In São Miguel do Iguaçu, the average sunshine in March is 8.6h.

UV index

The average daily maximum UV index in March is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In March, the average maximum UV index of 6 translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Enhance your sun protection with tightly woven, yet airy clothing.