March weather forecast
Polémie, French Guiana

The first month of the spring, March, is still a warm month in Polémie, French Guiana, with an average temperature varying between 29.5°C (85.1°F) and 22.8°C (73°F).

Temperature

The average high-temperature during March registers at a still moderately hot 29.5°C (85.1°F), closely corresponding to the preceding month. Throughout March, an average low-temperature of 22.8°C (73°F) is experienced.

Heat index

In March, the heat index is calculated to be a sweltering 37°C (98.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Polémie, the average relative humidity in March is 82%.

Rainfall

In Polémie, in March, during 25.3 rainfall days, 46mm (1.81") of precipitation is typically accumulated. Throughout the year, in Polémie, French Guiana, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Daylight

In March, the average length of the day is 12h and 6min.
On the first day of March, sunrise is at 06:46 and sunset at 18:48. On the last day of the month, sunrise is at 06:34 and sunset at 18:44 -03.

Sunshine

In March, the average sunshine is 5.4h.

UV index

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In March, a daily maximum UV index of 6 leads to the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.