December weather forecast
Maripasoula, French Guiana

englishespañol中文
Share

Weather in December

Maripasoula wraps up the year under the spell of an increased cloud cover of 72% and a revival of the wet season, with rainfall touching 112mm (4.41") again. Temperature highs fall further down to 30.8°C (87.4°F), easing off the summer’s heat. With a decrease in daylight hours, December endorses the return of typical tropical weather. Winds maintain their gentle pace, and together with the cooler temperature and vast array of greenery, contribute to the serene ambience in December.

Temperature

December heralds a minor drop in average high-temperature, sliding from November's 34°C (93.2°F) to a still tropical 30.8°C (87.4°F). Throughout December nights, Maripasoula registers an average low-temperature of 20.9°C (69.6°F).

Heat index

In December, the average heat index is calculated to be a blistering 42°C (107.6°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Maripasoula, the average relative humidity in December is 85%.

Rainfall

In Maripasoula, French Guiana, during December, the rain falls for 26.2 days and regularly aggregates up to 112mm (4.41") of precipitation. In Maripasoula, during the entire year, the rain falls for 265.5 days and collects up to 1078mm (42.44") of precipitation.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year in Maripasoula.
On the first day of December, sunrise is at 06:27 and sunset at 18:23. On the last day of the month, sunrise is at 06:41 and sunset at 18:36 -03.

Sunshine

In Maripasoula, the average sunshine in December is 5.6h.

UV index

The months with the lowest UV index are January, March and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during December leads to these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

How hot does it get in Maripasoula in December?

December temperatures in Maripasoula vary between a high-temperature of 30.8°C (87.4°F) and a low-temperature of 20.9°C (69.6°F). In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 42°C (107.6°F).

What is the average humidity in December in Maripasoula?

In December, the average relative humidity in Maripasoula, French Guiana, is 85%.

How many days does it rain in December in Maripasoula?

In Maripasoula, French Guiana, in December, it is raining for 26.2 days, with typically 112mm (4.41") of accumulated precipitation.

What is the month with the shortest days in Maripasoula?

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

How many hours of daylight does Maripasoula have in December?

The average day length in December in Maripasoula, French Guiana, is 11h and 55min.

What time are sunrise and sunset in December in Maripasoula?

On the first day of December in Maripasoula, sunrise is at 06:27 and sunset at 18:23. On the last day of the month, sunrise is at 06:41 and sunset at 18:36 -03.

How long on average sun shines in December in Maripasoula?

In December, the average sunshine duration is 5.6h.

What are the months with the lowest UV index in Maripasoula?

The months with the lowest UV index are January, March and December, with an average maximum UV index of 5.

What is the UV index intensity in December in Maripasoula?

In Maripasoula, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Maripasoula, French Guiana

Average temperature in December - Maripasoula, French Guiana
  • Average high temperature in December: 30.8°C

The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.3°C).

  • Average low temperature in December: 20.9°C

The month with the highest average low temperature is May (21.9°C).
The coldest months (with the lowest average low temperature) are August and September (20.5°C).

Average pressure in December
Maripasoula, French Guiana

Average pressure in December - Maripasoula, French Guiana
  • Average pressure in December: 1010.7mbar

The months with the highest atmospheric pressure are June and July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).

Average wind speed in December
Maripasoula, French Guiana

Average wind speed in December - Maripasoula, French Guiana
  • Average wind speed in December: 5.1km/h

The windiest months (with the highest average wind speed) are February, March and November (5.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).

Average humidity in December
Maripasoula, French Guiana

Average humidity in December - Maripasoula, French Guiana
  • Average humidity in December: 85%

The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Maripasoula, French Guiana

Average rainfall in December - Maripasoula, French Guiana
  • Average rainfall in December: 112mm

The wettest month (with the highest rainfall) is May (192mm).
The driest month (with the least rainfall) is October (21mm).

Average rainfall days in December
Maripasoula, French Guiana

Average rainfall days in December - Maripasoula, French Guiana
  • Average rainfall days in December: 26.2 days

The months with the highest number of rainy days are January and March (26.8 days).
The month with the least rainy days is October (10.4 days).

Average daylight in December /
Average sunshine in December
Maripasoula, French Guiana

Average daylight in December / Average sunshine in December - Maripasoula, 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 4min

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

Average sunshine days in December
Maripasoula, French Guiana

Average sunshine days in December - Maripasoula, French Guiana
  • Average sunshine days in December: 3.7 days

The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (1.8 days).

Average UV index in December
Maripasoula, French Guiana

Average UV index in December - Maripasoula, French Guiana
  • Average UV index in December: 5

The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, March and December (UV index 5).

Average cloud cover in December
Maripasoula, French Guiana

Average cloud cover in December - Maripasoula, French Guiana
  • Average cloud cover in December: 72

The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is October (Cloud cover 44).

Average visibility in December
Maripasoula, French Guiana

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

The month with the highest visibility is October (8km).
The month with the lowest visibility is May (5km).

Maripasoula, French Guiana

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location