December weather forecast
Carbet Mitan, French Guiana

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Weather in December

December, the first month of the winter in Carbet Mitan, is also a moderately hot month, with an average temperature fluctuating between 22°C (71.6°F) and 29.8°C (85.6°F).

Temperature

In December, the average high-temperature marginally drops from a tropical 33°C (91.4°F) in November to a moderately hot 29.8°C (85.6°F). An average low-temperature of 22°C (71.6°F) is observed during December nights.

Heat index

The heat index for December is calculated to be a fiery hot 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in December is 86%.

Rainfall

In Carbet Mitan, in December, during 25.1 rainfall days, 146mm (5.75") of precipitation is typically accumulated. In Carbet Mitan, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year in Carbet Mitan.
On the first day of December, sunrise is at 06:22 and sunset at 18:18. On the last day of the month, sunrise is at 06:36 and sunset at 18:32 -03.

Sunshine

The average sunshine in December in Carbet Mitan, French Guiana, is 5.9h.

UV index

The months with the lowest UV index are January through July, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jan 31, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is December in Carbet Mitan?

December temperatures in Carbet Mitan, French Guiana, vary between a high-temperature of 29.8°C (85.6°F) and a low-temperature of 22°C (71.6°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in December is calculated to be 39°C (102.2°F).

What is the average humidity in December in Carbet Mitan?

In December, the average relative humidity is 86%.

How many days does it rain in December in Carbet Mitan?

In Carbet Mitan, French Guiana, in December, it is raining for 25.1 days, with typically 146mm (5.75") of accumulated precipitation.

What is the month with the shortest days in Carbet Mitan?

The month with the shortest days in Carbet Mitan, French Guiana, is December, with an average of 11h and 54min of daylight.

What is the average length of the day in December in Carbet Mitan?

In December, the average day length is 11h and 56min.

What time are sunrise and sunset in December in Carbet Mitan?

In December, on the first day of the month, sunrise is at 06:22 and sunset at 18:18. On the last day of the month, sunrise is at 06:36 and sunset at 18:32 -03.

How long on average sun shines in December in Carbet Mitan?

The average sunshine duration in December is 5.9h.

What are the months with the lowest UV index in Carbet Mitan?

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Carbet Mitan.

What is the UV index intensity in December in Carbet Mitan?

In Carbet Mitan, French Guiana, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Carbet Mitan, French Guiana

Average temperature in December - Carbet Mitan, French Guiana
  • Average high temperature in December: 29.8°C

The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).

  • Average low temperature in December: 22°C

The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).

Average pressure in December
Carbet Mitan, French Guiana

Average pressure in December - Carbet Mitan, French Guiana
  • Average pressure in December: 1010.8mbar

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 December
Carbet Mitan, French Guiana

Average wind speed in December - Carbet Mitan, French Guiana
  • Average wind speed in December: 5.6km/h

The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).

Average humidity in December
Carbet Mitan, French Guiana

Average humidity in December - Carbet Mitan, French Guiana
  • Average humidity in December: 86%

The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Carbet Mitan, French Guiana

Average rainfall in December - Carbet Mitan, French Guiana
  • Average rainfall in December: 146mm

The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).

Average rainfall days in December
Carbet Mitan, French Guiana

Average rainfall days in December - Carbet Mitan, French Guiana
  • Average rainfall days in December: 25.1 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).

Average daylight in December /
Average sunshine in December
Carbet Mitan, French Guiana

Average daylight in December / Average sunshine in December - Carbet Mitan, French Guiana
  • Average daylight in December: 11h and 5min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in December
Carbet Mitan, French Guiana

Average sunshine days in December - Carbet Mitan, French Guiana
  • Average sunshine days in December: 4.5 days

The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).

Average UV index in December
Carbet Mitan, French Guiana

Average UV index in December - Carbet Mitan, French Guiana
  • Average UV index in December: 6

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

Average cloud cover in December
Carbet Mitan, French Guiana

Average cloud cover in December - Carbet Mitan, French Guiana
  • Average cloud cover in December: 67

The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).

Average visibility in December
Carbet Mitan, French Guiana

Average visibility in December - Carbet Mitan, French Guiana
  • Average visibility in December: 6km

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

Carbet Mitan, French Guiana

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