December weather forecast
Dieudonné, French Guiana

December

Weather in December

December, the first month of the winter in Dieudonné, is still a warm month, with temperature in the range of an average high of 28.6°C (83.5°F) and an average low of 24.7°C (76.5°F).

Temperature

Dieudonné starts December with an average high-temperature of a moderately hot 28.6°C (83.5°F), a minor shift from November's 30.4°C (86.7°F). Dieudonné upholds a consistent average temperature of 24.7°C (76.5°F) throughout the nights of December.

Heat index

The heat index in December is evaluated at a tropical 34°C (93.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In Dieudonné, French Guiana, the average relative humidity in December is 82%.

Rainfall

In Dieudonné, in December, during 26 rainfall days, 227mm (8.94") of precipitation is typically accumulated. Throughout the year, in Dieudonné, there are 288 rainfall days, and 1773mm (69.8") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Dieudonné, French Guiana, with an average of 11h and 48min of daylight.
On the first day of the month, sunrise is at 06:27 and sunset at 18:18. On the last day of December, in Dieudonné, sunrise is at 06:41 and sunset at 18:32 -03.

Sunshine

In December, the average sunshine in Dieudonné is 7.4h.

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 value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

How hot does it get in Dieudonné in December?
In December, the average high-temperature and low-temperature in Dieudonné are 28.6°C (83.5°F) and 24.7°C (76.5°F) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in December is evaluated at 34°C (93.2°F).
What is the average humidity in December in Dieudonné?
The average relative humidity in December in Dieudonné, French Guiana, is 82%.
How many days does it rain in December in Dieudonné?
In Dieudonné, during December, the rain falls for 26 days and regularly aggregates up to 227mm (8.94") of precipitation.
What is the month with the shortest days in Dieudonné?
The month with the shortest days in Dieudonné is December, with an average of 11h and 48min of daylight.
How many hours of daylight does Dieudonné have in December?
In December, the average day length in Dieudonné, French Guiana, is 11h and 50min.
What time are sunrise and sunset in December in Dieudonné?
In December, on the first day of the month, sunrise is at 06:27 and sunset at 18:18. On the last day of the month, sunrise is at 06:41 and sunset at 18:32 -03.
How many hours of sunshine does Dieudonné have in December?
In Dieudonné, the average sunshine duration in December is 7.4h.
When is the lowest UV index in Dieudonné?
The months with the lowest UV index in Dieudonné, French Guiana, are January through June and December, with an average maximum UV index of 6.
How high is the UV index in December in Dieudonné?
In December, the average daily maximum UV index in Dieudonné, French Guiana, is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
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 - Dieudonné, French Guiana
Average temperature in December
Dieudonné, French Guiana
  • Average high temperature in December: 28.6°C

The warmest months (with the highest average high temperature) are September and October (30.9°C).
The month with the lowest average high temperature is February (27.5°C).

  • Average low temperature in December: 24.7°C

The month with the highest average low temperature is November (25.1°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).

Average pressure in December - Dieudonné, French Guiana
Average pressure in December
Dieudonné, French Guiana
  • Average pressure in December: 1010.9mbar

The months with the highest atmospheric pressure are June and July (1013.1mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).

Average wind speed in December - Dieudonné, French Guiana
Average wind speed in December
Dieudonné, French Guiana
  • Average wind speed in December: 13.6km/h

The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).

Average humidity in December - Dieudonné, French Guiana
Average humidity in December
Dieudonné, French Guiana
  • Average humidity in December: 82%

The months with the highest relative humidity are February and May (84%).
The months with the lowest relative humidity are September and October (77%).

Average rainfall in December - Dieudonné, French Guiana
Average rainfall in December
Dieudonné, French Guiana
  • Average rainfall in December: 227mm

The wettest month (with the highest rainfall) is May (279mm).
The driest month (with the least rainfall) is September (29mm).

Average rainfall days in December - Dieudonné, French Guiana
Average rainfall days in December
Dieudonné, French Guiana
  • Average rainfall days in December: 26 days

The month with the highest number of rainy days is May (29.6 days).
The months with the least rainy days are September and October (14.3 days).

Average daylight in December / Average sunshine in December - Dieudonné, French Guiana
Average daylight in December /
Average sunshine in December
Dieudonné, 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: 7h and 2min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in December - Dieudonné, French Guiana
Average sunshine days in December
Dieudonné, French Guiana
  • Average sunshine days in December: 3.2 days

The month with the most sunshine days is October (13.2 days).
The month with the least sunshine days is May (0.6 days).

Average UV index in December - Dieudonné, French Guiana
Average UV index in December
Dieudonné, 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 - Dieudonné, French Guiana
Average cloud cover in December
Dieudonné, French Guiana
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in December - Dieudonné, French Guiana
Average visibility in December
Dieudonné, French Guiana
  • Average visibility in December: 10km

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

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