March weather forecast
Bienvenue, French Guiana

March brings with it a steady continuation of Bienvenue’s tropical climate characterized by noticeable levels of rainfall and humidity. Despite a drop in average rainfall to 86mm (3.39"), the city remains moist, witnessing an almost imperceptible change in relative humidity. The sun remains a constant companion, gleaming down on the city amidst frequent clouds. The visibility and UV index remain steady compared to February, indicating predictable weather conditions. Although the warmth is persistent, a slight increase in wind speed somewhat tempers the heat.

Temperature

The arrival of March in Bienvenue coincides with an average high-temperature of a still moderately hot 28.8°C (83.8°F), indicating a minimal shift from February's 27.9°C (82.2°F). March in Bienvenue sees the temperature falling to a mean low of 22.2°C (72°F).

Heat index

In March, the average heat index is computed to be a fiery hot 36°C (96.8°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Always consider that heat index estimations are for light winds and places in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold particular importance 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.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in March in Bienvenue is 89%.

Rainfall

In March, the rain falls for 25.9 days. Throughout March, 86mm (3.39") of precipitation is accumulated. In Bienvenue, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

The average length of the day in March in Bienvenue is 12h and 6min.
On the first day of the month, sunrise is at 06:41 and sunset at 18:44. On the last day of March, sunrise is at 06:30 and sunset at 18:39 -03.

Sunshine

The average sunshine in March is 4.6h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 6 in March, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.