December weather forecast
Dégrad Florian, French Guiana

December

Weather in December

December, the first month of the winter in Dégrad Florian, is still a tropical month, with an average temperature varying between 22.7°C (72.9°F) and 30.2°C (86.4°F).

Temperature

In the transition from November to December, Dégrad Florian reports an average high-temperature of a still hot 30.2°C (86.4°F), indicating a close resemblance to the prior month. During December, the temperature in Dégrad Florian, French Guiana, tends to dip to an average of 22.7°C (72.9°F) at night.

Heat index

Throughout December, the heat index is appraised at a fiery hot 39°C (102.2°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. 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 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to 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.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in December in Dégrad Florian, French Guiana, is 83%.

Rainfall

In Dégrad Florian, in December, during 21.9 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, there are 253 rainfall days, and 878mm (34.57") of precipitation is accumulated.

Daylight

The month with the shortest days in Dégrad Florian is December, with an average of 11h and 48min of daylight.
On the first day of December in Dégrad Florian, French Guiana, sunrise is at 06:28 and sunset at 18:17. On the last day of the month, sunrise is at 06:42 and sunset at 18:31 -03.

Sunshine

In December, the average sunshine is 6.6h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during December leads to these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

How hot is it in Dégrad Florian in December?
December temperatures in Dégrad Florian, French Guiana, vary between a high-temperature of 30.2°C (86.4°F) and a low-temperature of 22.7°C (72.9°F). In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 39°C (102.2°F).
What is the average humidity in December in Dégrad Florian?
In December, the average relative humidity in Dégrad Florian, French Guiana, is 83%.
How much does it rain in Dégrad Florian in December?
In Dégrad Florian, during December, the rain falls for 21.9 days and regularly aggregates up to 84mm (3.31") of precipitation.
What is the month with the shortest days in Dégrad Florian?
With an average of 11h and 48min of daylight, December has the shortest days of the year in Dégrad Florian, French Guiana.
How many hours of daylight does Dégrad Florian have in December?
The average day length in December is 11h and 49min.
When are sunrise and sunset in December in Dégrad Florian?
On the first day of December, sunrise is at 06:28 and sunset at 18:17. On the last day of the month, sunrise is at 06:42 and sunset at 18:31 -03.
How long on average sun shines in December in Dégrad Florian?
In Dégrad Florian, French Guiana, the average sunshine duration in December is 6.6h.
What are the months with the lowest UV index in Dégrad Florian?
The months with the lowest UV index are January through June and December, with an average maximum UV index of 6.
What is the UV index intensity in December in Dégrad Florian?
In Dégrad Florian, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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 December
Dégrad Florian, French Guiana
  • Average high temperature in December: 30.2°C

The warmest month (with the highest average high temperature) is October (33.1°C).
The month with the lowest average high temperature is February (29.1°C).

  • Average low temperature in December: 22.7°C

The month with the highest average low temperature is May (23.3°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).

Average pressure in December
Dégrad Florian, French Guiana
  • Average pressure in December: 1010.9mbar

The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).

Average wind speed in December
Dégrad Florian, French Guiana
  • Average wind speed in December: 8.7km/h

The windiest months (with the highest average wind speed) are February and March (9.5km/h).
The calmest month (with the lowest average wind speed) is July (6.4km/h).

Average humidity in December
Dégrad Florian, French Guiana
  • Average humidity in December: 83%

The month with the highest relative humidity is June (88%).
The month with the lowest relative humidity is October (77%).

Average rainfall in December
Dégrad Florian, French Guiana
  • Average rainfall in December: 84mm

The wettest month (with the highest rainfall) is May (137mm).
The driest month (with the least rainfall) is October (23mm).

Average rainfall days in December
Dégrad Florian, French Guiana
  • Average rainfall days in December: 21.9 days

The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is September (11.5 days).

Average daylight in December /
Average sunshine in December
Dégrad Florian, French Guiana
  • Average daylight in December: 11h and 5min

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 December: 6h and 4min

The month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in December
Dégrad Florian, French Guiana
  • Average sunshine days in December: 6.4 days

The month with the most sunshine days is October (16 days).
The month with the least sunshine days is May (1.8 days).

Average UV index in December
Dégrad Florian, French Guiana
  • Average UV index in December: 6

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

Average cloud cover in December
Dégrad Florian, French Guiana
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in December
Dégrad Florian, French Guiana
  • Average visibility in December: 8km

The months with the highest visibility are February, March and April (9km).
The months with the lowest visibility are June, July and August (7km).

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