March weather forecast
Porto Seguro, Brazil

By March, Porto Seguro retains its warm temperature, and the humidity slightly increases. This month witnesses a significant jump in rainfall to 114mm (4.49"), marking the start of the city's rainy season. Despite the increased rainfall, the city's vibrant culture remains undeterred as they partake in numerous trade fairs. The high UV index of 7 should be noted by visitors so they are mindful of potential sunburn risks. The light breeze continues to make beach visits pleasant despite the marginal increase in cloud cover.

Temperature

Porto Seguro's temperature records reveal March as the warmest month, marked by average highs of 29.2°C (84.6°F) and lows of 24.1°C (75.4°F).

Heat index

For March, the heat index is computed to be a very hot 35°C (95°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In March, the average relative humidity is 80%.

Rainfall

The month with the most rainfall in Porto Seguro is March, when the rain falls for 20.9 days and typically aggregates up to 114mm (4.49") of precipitation.

Sea temperature

In Porto Seguro, in March, the average water temperature is 28°C (82.4°F).
Note: Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.

Daylight

The average length of the day in March in Porto Seguro is 12h and 11min.
On the first day of the month, sunrise is at 05:36 and sunset at 18:00. On the last day of March, in Porto Seguro, sunrise is at 05:42 and sunset at 17:38 -03.

Sunshine

The average sunshine in March is 7.9h.

UV index

January through March, November and December, with an average maximum UV index of 7, are months with the highest UV index in Porto Seguro. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 7 in March leads to these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take heed! Reflections of sand and water make the Sun's UV rays stronger.