December weather forecast
Matoumbou, Congo

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Matoumbou, Congo, with an average temperature varying between 21.5°C (70.7°F) and 29.8°C (85.6°F).

Temperature

Transitioning into December, Matoumbou records an average high-temperature of a still moderately hot 29.8°C (85.6°F), almost identical to November's 29.5°C (85.1°F). December sees the temperature falling to a mean low of 21.5°C (70.7°F).

Heat index

The heat index in December is calculated to be a torrid 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Observations indicate that the heat index values are for shady locations with light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

With an average relative humidity of 83%, December is the most humid month in Matoumbou.

Rainfall

In December, the rain falls for 29 days. Throughout December, 167mm (6.57") of precipitation is accumulated. In Matoumbou, Congo, during the entire year, the rain falls for 243.1 days and collects up to 1109mm (43.66") of precipitation.

Daylight

With an average of 12h and 24min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:39 and sunset at 18:00. On the last day of December, sunrise is at 05:53 and sunset at 18:15 WAT.

Sunshine

In Matoumbou, the average sunshine in December is 9h.

UV index

February, June, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

How hot is it in December?
During December, Matoumbou experiences an average high-temperature of 29.8°C (85.6°F) and a low-temperature of 21.5°C (70.7°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in December is calculated to be 38°C (100.4°F).
What is the most humid month?
With an average relative humidity of 83%, December is the most humid month.
What is the average humidity in December?
The average relative humidity in December is 83%.
How much does it rain in December?
In Matoumbou, Congo, in December, it is raining for 29 days, with typically 167mm (6.57") of accumulated precipitation.
When are the longest days?
The month with the longest days is December, with an average of 12h and 24min of daylight.
How many hours of daylight does Matoumbou have in December?
In Matoumbou, the average day length in December is 12h and 22min.
When are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 05:39 and sunset at 18:00. On the last day of the month, sunrise is at 05:53 and sunset at 18:15 WAT.
How long on average sun shines in December?
In Matoumbou, the average sunshine duration in December is 9h.
What are the months with the lowest UV index?
The months with the lowest UV index are February, June, October through December, with an average maximum UV index of 6.
What is the UV index intensity in December?
In Matoumbou, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from 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 - Matoumbou, Congo
Average temperature in December
Matoumbou, Congo
  • Average high temperature in December: 29.8°C

The warmest month (with the highest average high temperature) is August (33.1°C).
The month with the lowest average high temperature is November (29.5°C).

  • Average low temperature in December: 21.5°C

The month with the highest average low temperature is September (22.9°C).
The coldest months (with the lowest average low temperature) are June and July (20.8°C).

Average pressure in December - Matoumbou, Congo
Average pressure in December
Matoumbou, Congo
  • Average pressure in December: 1011.1mbar

The month with the highest atmospheric pressure is June (1013.1mbar).
The month with the lowest atmospheric pressure is February (1010.3mbar).

Average wind speed in December - Matoumbou, Congo
Average wind speed in December
Matoumbou, Congo
  • Average wind speed in December: 4.7km/h

The windiest month (with the highest average wind speed) is August (8.6km/h).
The calmest months (with the lowest average wind speed) are April and December (4.7km/h).

Average humidity in December - Matoumbou, Congo
Average humidity in December
Matoumbou, Congo
  • Average humidity in December: 83%

The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is August (55%).

Average rainfall in December - Matoumbou, Congo
Average rainfall in December
Matoumbou, Congo
  • Average rainfall in December: 167mm

The wettest month (with the highest rainfall) is November (173mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in December - Matoumbou, Congo
Average rainfall days in December
Matoumbou, Congo
  • Average rainfall days in December: 29 days

The month with the highest number of rainy days is December (29 days).
The month with the least rainy days is July (2.9 days).

Average daylight in December / Average sunshine in December - Matoumbou, Congo
Average daylight in December /
Average sunshine in December
Matoumbou, Congo
  • Average daylight in December: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).

  • Average sunshine in December: 9h and 0min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are June, October and November (Average sunshine: 7h and 0min).

Average sunshine days in December - Matoumbou, Congo
Average sunshine days in December
Matoumbou, Congo
  • Average sunshine days in December: 1.3 days

The month with the most sunshine days is July (27.4 days).
The month with the least sunshine days is December (1.3 days).

Average UV index in December - Matoumbou, Congo
Average UV index in December
Matoumbou, Congo
  • Average UV index in December: 6

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

Average cloud cover in December - Matoumbou, Congo
Average cloud cover in December
Matoumbou, Congo
  • Average cloud cover in December: 50

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 19).

Average visibility in December - Matoumbou, Congo
Average visibility in December
Matoumbou, Congo
  • Average visibility in December: 8km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, March, April, November and December (8km).

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