December weather forecast
Libreville, Gabon

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Tarmac road beside sandy beaches leading into the Libreville city in Gabon
Tarmac road beside sandy beaches leading into the Libreville city in Gabon

Weather in December

As December rolls in, Libreville sees a drop in rainfall in comparison to the exceedingly precipitous November. Although the year ends on a wet note, the amount and frequency of rainfall both exhibit a decrease. The winds slow down too, following the decreasing trend in precipitation. Sea temperature maintains its warm and inviting demeanor. Still, the humidity persists on the higher side, maintaining the city's moist and warm tropical character till the end of the year.

Temperature

In December, Libreville's weather conditions record an average high-temperature of a still moderately hot 28.6°C (83.5°F), demonstrating little divergence from the preceding month. In Libreville, the nighttime temperature shows a slight difference from the daytime high, averaging to a still moderately hot 24.5°C (76.1°F) during December.

Heat index

The heat index in December is calculated to be a tropical 34°C (93.2°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

The average relative humidity in December is 83%.

Rainfall

In December, in Libreville, Gabon, the rain falls for 29.9 days. Throughout December, 163mm (6.42") of precipitation is accumulated. Throughout the year, in Libreville, there are 274.1 rainfall days, and 1477mm (58.15") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Libreville is 27.8°C (82°F).
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

December has the shortest days of the year, with an average of 12h and 6min of daylight.
On the first day of December, sunrise is at 06:08 and sunset at 18:14. On the last day of the month, sunrise is at 06:22 and sunset at 18:28 WAT.

Sunshine

In December, the average sunshine in Libreville is 8.2h.

UV index

January through May, November and December, with an average maximum UV index of 7, are months with the highest UV index in Libreville. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 7 in December interprets into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Heads up! UV intensity is amplified by reflections from water and sand.
Updated: Feb 9, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

Is it hot in Libreville during December?

The high-temperature, in December, in Libreville, records 28.6°C (83.5°F), while the low-temperature is 24.5°C (76.1°F). In December, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 34°C (93.2°F).

What is the average humidity in December in Libreville?

In December, the average relative humidity in Libreville is 83%.

How much does it rain in Libreville in December?

In Libreville, Gabon, in December, during 29.9 rainfall days, 163mm (6.42") of precipitation is typically accumulated.

What is the water temperature in December in Libreville?

In December, the average sea temperature in Libreville, Gabon, is 27.8°C (82°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Libreville?

The month with the shortest days in Libreville is December, with an average of 12h and 6min of daylight.

How many hours of daylight does Libreville have in December?

In December, the average day length is 12h and 6min.

What time are sunrise and sunset in December in Libreville?

In December, on the first day of the month, sunrise is at 06:08 and sunset at 18:14. On the last day of the month, in Libreville, sunrise is at 06:22 and sunset at 18:28 WAT.

How long on average sun shines in December in Libreville?

The average sunshine duration in December in Libreville, Gabon, is 8.2h.

When is the highest UV index in Libreville?

The months with the highest UV index are January through May, November and December, with an average maximum UV index of 7.

How high is the UV index in December in Libreville?

In Libreville, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.

Average temperature in December
Libreville, Gabon

Average temperature in December - Libreville, Gabon
  • Average high temperature in December: 28.6°C

The warmest month (with the highest average high temperature) is March (30.1°C).
The month with the lowest average high temperature is July (26.5°C).

  • Average low temperature in December: 24.5°C

The month with the highest average low temperature is March (25.3°C).
The coldest month (with the lowest average low temperature) is July (22.5°C).

Average pressure in December
Libreville, Gabon

Average pressure in December - Libreville, Gabon
  • Average pressure in December: 1010.7mbar

The month with the highest atmospheric pressure is July (1014mbar).
The months with the lowest atmospheric pressure are February and March (1010mbar).

Average wind speed in December
Libreville, Gabon

Average wind speed in December - Libreville, Gabon
  • Average wind speed in December: 8.3km/h

The windiest month (with the highest average wind speed) is August (13.4km/h).
The calmest month (with the lowest average wind speed) is April (8.2km/h).

Average humidity in December
Libreville, Gabon

Average humidity in December - Libreville, Gabon
  • Average humidity in December: 83%

The month with the highest relative humidity is November (86%).
The months with the lowest relative humidity are January, February, March and August (81%).

Average rainfall in December
Libreville, Gabon

Average rainfall in December - Libreville, Gabon
  • Average rainfall in December: 163mm

The wettest month (with the highest rainfall) is November (226mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in December
Libreville, Gabon

Average rainfall days in December - Libreville, Gabon
  • Average rainfall days in December: 29.9 days

The month with the highest number of rainy days is January (30 days).
The month with the least rainy days is July (8.3 days).

Average sea temperature in December
Libreville, Gabon

Average sea temperature in December - Libreville, Gabon
  • Average sea temperature in December: 27.8°C

The best month for swimming (with the highest average sea temperature) is March (29.3°C).
The coldest month (with the lowest average sea temperature) is July (24.7°C).

Average daylight in December /
Average sunshine in December
Libreville, Gabon

Average daylight in December / Average sunshine in December - Libreville, Gabon
  • Average daylight in December: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is December (Average daylight: 12h and 6min).

  • Average sunshine in December: 8h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The month with the least sunshine is September (Average sunshine: 5h and 6min).

Average sunshine days in December
Libreville, Gabon

Average sunshine days in December - Libreville, Gabon
  • Average sunshine days in December: 0.8 days

The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is January (0.6 days).

Average UV index in December
Libreville, Gabon

Average UV index in December - Libreville, Gabon
  • Average UV index in December: 7

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

Average cloud cover in December
Libreville, Gabon

Average cloud cover in December - Libreville, Gabon
  • Average cloud cover in December: 45

The month with the most cloud cover is September (Cloud cover 74).
The month with the least cloud cover is February (Cloud cover 42).

Average visibility in December
Libreville, Gabon

Average visibility in December - Libreville, Gabon
  • Average visibility in December: 9km

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

Libreville, Gabon

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