March weather forecast
João Pessoa, Brazil

March introduces significant rainfall to João Pessoa, with levels reaching up to 252mm (9.92"), the third highest of the year. Coinciding with the heavy rainfall, relative humidity shoots up to 81%, compared to the lower 75% in the preceding months. The drop in duration of sunshine and a slight decrease in maximum temperatures indicates the transition towards milder seasons. Despite the weather changes, marine temperatures remain high, providing locals with opportunities for water-related activities.

Temperature

João Pessoa's March average high-temperature settles at a still hot 30°C (86°F), showing a near match with the preceding month. Throughout March, João Pessoa encounters an average temperature drop to a moderately hot 23.2°C (73.8°F).

Heat index

March's average heat index is evaluated at a torrid 38°C (100.4°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In João Pessoa, the average relative humidity in March is 81%.

Rainfall

In João Pessoa, during March, the rain falls for 15 days and regularly aggregates up to 252mm (9.92") of precipitation. Throughout the year, there are 149 rainfall days, and 2145mm (84.45") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater is March, with an average sea temperature of 29°C (84.2°F).
Note: For swimming, diving, and various water activities, the temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as highly enjoyable and comfortable for extended durations without any discomfort.

Daylight

The average length of the day in March is 12h and 8min.
On the first day of March in João Pessoa, Brazil, sunrise is at 05:24 and sunset at 17:38. On the last day of the month, sunrise is at 05:22 and sunset at 17:24 -03.

Sunshine

In João Pessoa, the average sunshine in March is 6.7h.