December weather forecast
Monrovia, Liberia

Weather in December

The first month of the winter, December, is also a moderately hot month in Monrovia, Liberia, with an average temperature fluctuating between 29.5°C (85.1°F) and 25.3°C (77.5°F).

Temperature

In Monrovia, the average high-temperature in December is essentially the same as in November - a still warm 29.5°C (85.1°F). In Monrovia, in December, the average low-temperature is 25.3°C (77.5°F).

Heat index

The average heat index in December is computed to be a torrid 35°C (95°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like metabolic differences, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in December in Monrovia is 77%.

Rainfall

In Monrovia, it is raining for 19.2 days, with typically 59mm (2.32") of accumulated precipitation. In Monrovia, during the entire year, the rain falls for 298.8 days and collects up to 1903mm (74.92") of precipitation.

Sea temperature

In December, the average sea temperature is 28.8°C (83.8°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

December has the shortest days of the year, with an average of 11h and 46min of daylight.
On the first day of December, sunrise is at 06:38 and sunset at 18:25. On the last day of the month, sunrise is at 06:53 and sunset at 18:39 GMT.

Sunshine

In Monrovia, the average sunshine in December is 8.9h.

UV index

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Monrovia. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 7 in December transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in December in Monrovia?

In Monrovia, in December, the average high-temperature is 29.5°C (85.1°F), and the average low-temperature is 25.3°C (77.5°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in December is computed to be 35°C (95°F).

What is the average humidity in December in Monrovia?

In Monrovia, Liberia, the average relative humidity in December is 77%.

How many days does it rain in December in Monrovia?

In Monrovia, Liberia, during December, the rain falls for 19.2 days and regularly aggregates up to 59mm (2.32") of precipitation.

What is the water temperature in December in Monrovia?

In Monrovia, Liberia, the average seawater temperature in December is 28.8°C (83.8°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the month with the shortest days in Monrovia?

The month with the shortest days in Monrovia, Liberia, is December, with an average of 11h and 46min of daylight.

What is the average length of the day in December in Monrovia?

In December, the average day length in Monrovia is 11h and 46min.

When is the sunrise / sunset in December in Monrovia?

In December, on the first day of the month, sunrise is at 06:38 and sunset at 18:25. On the last day of the month, in Monrovia, Liberia, sunrise is at 06:53 and sunset at 18:39 GMT.

How many hours of sunshine does Monrovia have in December?

In December, the average sunshine duration in Monrovia, Liberia, is 8.9h.

What are the months with the highest UV index in Monrovia?

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Monrovia.

What is the UV index reading in December in Monrovia?

In Monrovia, Liberia, the average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in December
Monrovia, Liberia

Average temperature in December - Monrovia, Liberia
  • Average high temperature in December: 29.5°C

The warmest month (with the highest average high temperature) is January (29.9°C).
The month with the lowest average high temperature is August (26.2°C).

  • Average low temperature in December: 25.3°C

The month with the highest average low temperature is April (26.2°C).
The coldest months (with the lowest average low temperature) are July and August (24.1°C).

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Average pressure in December
Monrovia, Liberia

Average pressure in December - Monrovia, Liberia
  • Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is July (1014.2mbar).
The month with the lowest atmospheric pressure is February (1010.6mbar).

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Average wind speed in December
Monrovia, Liberia

Average wind speed in December - Monrovia, Liberia
  • Average wind speed in December: 8.5km/h

The windiest month (with the highest average wind speed) is August (14.8km/h).
The calmest month (with the lowest average wind speed) is November (7.9km/h).

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Average humidity in December
Monrovia, Liberia

Average humidity in December - Monrovia, Liberia
  • Average humidity in December: 77%

The month with the highest relative humidity is September (86%).
The month with the lowest relative humidity is January (76%).

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Average rainfall in December
Monrovia, Liberia

Average rainfall in December - Monrovia, Liberia
  • Average rainfall in December: 59mm

The wettest month (with the highest rainfall) is June (308mm).
The driest month (with the least rainfall) is January (31mm).

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Average rainfall days in December
Monrovia, Liberia

Average rainfall days in December - Monrovia, Liberia
  • Average rainfall days in December: 19.2 days

The month with the highest number of rainy days is October (30.3 days).
The month with the least rainy days is January (14.8 days).

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Average sea temperature in December
Monrovia, Liberia

Average sea temperature in December - Monrovia, Liberia
  • Average sea temperature in December: 28.8°C

The best month for swimming (with the highest average sea temperature) is May (28.9°C).
The coldest months (with the lowest average sea temperature) are August and September (27°C).

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Average daylight in December /
Average sunshine in December
Monrovia, Liberia

Average daylight in December / Average sunshine in December - Monrovia, Liberia
  • Average daylight in December: 11h and 46min

The month with the longest days is June (Average daylight: 12h and 29min).
The month with the shortest days is December (Average daylight: 11h and 46min).

  • Average sunshine in December: 8h and 54min

The month with the most sunshine is January (Average sunshine: 9h and 18min).
The month with the least sunshine is August (Average sunshine: 3h and 54min).

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Average sunshine days in December
Monrovia, Liberia

Average sunshine days in December - Monrovia, Liberia
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is January (14.3 days).
The month with the least sunshine days is September (0.3 days).

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Average UV index in December
Monrovia, Liberia

Average UV index in December - Monrovia, Liberia
  • Average UV index in December: 7

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

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Average cloud cover in December
Monrovia, Liberia

Average cloud cover in December - Monrovia, Liberia
  • Average cloud cover in December: 28

The month with the most cloud cover is August (Cloud cover 76).
The month with the least cloud cover is January (Cloud cover 24).

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Average visibility in December
Monrovia, Liberia

Average visibility in December - Monrovia, Liberia
  • Average visibility in December: 10km

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

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