March weather forecast
Petit Cayenne, French Guiana

March

Weather in March

March, the first month of the spring in Petit Cayenne, is still a warm month, with temperature in the range of an average high of 28.3°C (82.9°F) and an average low of 24.2°C (75.6°F).

Temperature

Petit Cayenne experiences a minor change to a still warm 28.3°C (82.9°F) in average high-temperature during March, closely reflecting February. Petit Cayenne's nighttime temperatures in March display a slight drop from daytime highs, averaging to a still warm 24.2°C (75.6°F).

Heat index

For March, the heat index is evaluated at a hot 34°C (93.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In March, the average relative humidity is 84%.

Rainfall

In Petit Cayenne, during March, the rain falls for 27.2 days and regularly aggregates up to 128mm (5.04") of precipitation. In Petit Cayenne, during the entire year, the rain falls for 277 days and collects up to 1707mm (67.2") of precipitation.

Daylight

The average length of the day in March is 12h and 6min.
On the first day of March, sunrise is at 06:40 and sunset at 18:42. On the last day of the month, sunrise is at 06:28 and sunset at 18:38 -03.

Sunshine

In Petit Cayenne, French Guiana, the average sunshine in March is 6h.

UV index

January through May and December, with an average maximum UV index of 6, are months with the lowest UV index in Petit Cayenne, French Guiana. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In March, a daily maximum UV index of 6 leads to the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

How hot is it in Petit Cayenne in March?
The average high-temperature and low-temperature in Petit Cayenne during March are 28.3°C (82.9°F) and 24.2°C (75.6°F) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in March is evaluated at 34°C (93.2°F).
What is the average humidity in March in Petit Cayenne?
The average relative humidity in March is 84%.
How much does it rain in Petit Cayenne in March?
In Petit Cayenne, French Guiana, in March, during 27.2 rainfall days, 128mm (5.04") of precipitation is typically accumulated.
How many hours of daylight does Petit Cayenne have in March?
In March, the average day length is 12h and 6min.
What time are sunrise and sunset in March in Petit Cayenne?
On the first day of March in Petit Cayenne, French Guiana, sunrise is at 06:40 and sunset at 18:42. On the last day of the month, sunrise is at 06:28 and sunset at 18:38 -03.
How long on average sun shines in March in Petit Cayenne?
In Petit Cayenne, French Guiana, the average sunshine duration in March is 6h.
What are the months with the lowest UV index in Petit Cayenne?
The months with the lowest UV index in Petit Cayenne are January through May and December, with an average maximum UV index of 6.
What is the UV index reading in March in Petit Cayenne?
In Petit Cayenne, French Guiana, the average daily maximum UV index in March is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in March - Petit Cayenne, French Guiana
Average temperature in March
Petit Cayenne, French Guiana
  • Average high temperature in March: 28.3°C

The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).

  • Average low temperature in March: 24.2°C

The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).

Average pressure in March - Petit Cayenne, French Guiana
Average pressure in March
Petit Cayenne, French Guiana
  • Average pressure in March: 1011.9mbar

The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in March - Petit Cayenne, French Guiana
Average wind speed in March
Petit Cayenne, French Guiana
  • Average wind speed in March: 12.7km/h

The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).

Average humidity in March - Petit Cayenne, French Guiana
Average humidity in March
Petit Cayenne, French Guiana
  • Average humidity in March: 84%

The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).

Average rainfall in March - Petit Cayenne, French Guiana
Average rainfall in March
Petit Cayenne, French Guiana
  • Average rainfall in March: 128mm

The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).

Average rainfall days in March - Petit Cayenne, French Guiana
Average rainfall days in March
Petit Cayenne, French Guiana
  • Average rainfall days in March: 27.2 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).

Average daylight in March / Average sunshine in March - Petit Cayenne, French Guiana
Average daylight in March /
Average sunshine in March
Petit Cayenne, French Guiana
  • Average daylight in March: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in March: 6h and 0min

The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).

Average sunshine days in March - Petit Cayenne, French Guiana
Average sunshine days in March
Petit Cayenne, French Guiana
  • Average sunshine days in March: 2.3 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).

Average UV index in March - Petit Cayenne, French Guiana
Average UV index in March
Petit Cayenne, French Guiana
  • Average UV index in March: 6

The months with the highest UV index are June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May and December (UV index 6).

Average cloud cover in March - Petit Cayenne, French Guiana
Average cloud cover in March
Petit Cayenne, French Guiana
  • Average cloud cover in March: 58

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in March - Petit Cayenne, French Guiana
Average visibility in March
Petit Cayenne, French Guiana
  • Average visibility in March: 10km

The months with the highest visibility are January, February, March, August, September, October and November (10km).
The months with the lowest visibility are April, May, June, July and December (9km).

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