December weather forecast
Greenville, Liberia

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Weather in December

As the year comes to a close, Greenville's weather in December reveals a decrease in rainfall to about 95mm (3.74"). This marks a transition into the drier months, just as the New Year begins. However, despite the decreasing precipitation, December has more rainy days compared to November. Temperature-wise, the town experiences slightly cooler days. Likewise, consistent with the decreasing trend of daylight hours since September, December ends the year with the least number of daylight hours.

Temperature

The commencement of December introduces an average high-temperature of a still warm 29.4°C (84.9°F), closely mirroring the preceding month. Greenville records a negligible downturn from daytime temperatures, averaging a low of 24.7°C (76.5°F) in the month of December.

Heat index

December's heat index is calculated to be a torrid 36°C (96.8°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Greenville, Liberia, the average relative humidity in December is 80%.

Rainfall

In December, the rain falls for 25.4 days. Throughout December, 95mm (3.74") of precipitation is accumulated. Throughout the year, there are 294.8 rainfall days, and 1200mm (47.24") of precipitation is accumulated.

Sea temperature

In Greenville, in December, the average water temperature is 28.8°C (83.8°F).
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.

Daylight

December has the shortest days of the year, with an average of 11h and 48min of daylight.
On the first day of December in Greenville, sunrise is at 06:29 and sunset at 18:20. On the last day of the month, sunrise is at 06:44 and sunset at 18:34 GMT.

Sunshine

The average sunshine in December is 8.7h.

UV index

January through May and December, with an average maximum UV index of 7, are months with the highest UV index in Greenville. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Caution! The Sun's UV intensity grows with reflections off sand and water.

Frequently asked questions

Is it hot during December?

The high-temperature, in December, in Greenville, records 29.4°C (84.9°F), while the low-temperature is 24.7°C (76.5°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in December is calculated to be 36°C (96.8°F).

What is the average humidity in December?

The average relative humidity in December is 80%.

How much does it rain in December?

In Greenville, during December, the rain falls for 25.4 days and regularly aggregates up to 95mm (3.74") of precipitation.

What is the sea water temperature in December?

In Greenville, in December, the average water temperature is 28.8°C (83.8°F). 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.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 11h and 48min of daylight.

How many hours of daylight does Greenville have in December?

The average day length in December is 11h and 50min.

When is the sunrise / sunset in December in Greenville?

On the first day of December, sunrise is at 06:29 and sunset at 18:20. On the last day of the month, sunrise is at 06:44 and sunset at 18:34 GMT.

How many hours of sunshine does Greenville have in December?

In December, the average sunshine duration is 8.7h.

What is the month with the highest UV index?

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

What is the UV index intensity in December?

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

Average temperature in December
Greenville, Liberia

Average temperature in December - Greenville, Liberia
  • Average high temperature in December: 29.4°C

The warmest month (with the highest average high temperature) is April (30.5°C).
The month with the lowest average high temperature is August (26°C).

  • Average low temperature in December: 24.7°C

The month with the highest average low temperature is April (25.4°C).
The coldest month (with the lowest average low temperature) is August (23.1°C).

Average pressure in December
Greenville, Liberia

Average pressure in December - Greenville, Liberia
  • Average pressure in December: 1011mbar

The month with the highest atmospheric pressure is July (1014.4mbar).
The months with the lowest atmospheric pressure are February and March (1010.4mbar).

Average wind speed in December
Greenville, Liberia

Average wind speed in December - Greenville, Liberia
  • Average wind speed in December: 8.3km/h

The windiest month (with the highest average wind speed) is August (12.9km/h).
The calmest month (with the lowest average wind speed) is November (8.1km/h).

Average humidity in December
Greenville, Liberia

Average humidity in December - Greenville, Liberia
  • Average humidity in December: 80%

The months with the highest relative humidity are September and October (87%).
The month with the lowest relative humidity is January (79%).

Average rainfall in December
Greenville, Liberia

Average rainfall in December - Greenville, Liberia
  • Average rainfall in December: 95mm

The wettest month (with the highest rainfall) is June (174mm).
The driest month (with the least rainfall) is August (36mm).

Average rainfall days in December
Greenville, Liberia

Average rainfall days in December - Greenville, Liberia
  • Average rainfall days in December: 25.4 days

The month with the highest number of rainy days is October (28.8 days).
The month with the least rainy days is July (19.8 days).

Average sea temperature in December
Greenville, Liberia

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

The best month for swimming (with the highest average sea temperature) is May (29.1°C).
The coldest month (with the lowest average sea temperature) is August (26.7°C).

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

Average daylight in December / Average sunshine in December - Greenville, Liberia
  • Average daylight in December: 11h and 5min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).

  • Average sunshine in December: 8h and 4min

The month with the most sunshine is January (Average sunshine: 8h and 48min).
The months with the least sunshine are August and September (Average sunshine: 3h and 54min).

Average sunshine days in December
Greenville, Liberia

Average sunshine days in December - Greenville, Liberia
  • Average sunshine days in December: 3.3 days

The months with the most sunshine days are July and August (8.5 days).
The month with the least sunshine days is November (1.4 days).

Average UV index in December
Greenville, Liberia

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

The months with the highest UV index are January, February, March, April, May and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).

Average cloud cover in December
Greenville, Liberia

Average cloud cover in December - Greenville, Liberia
  • Average cloud cover in December: 34

The month with the most cloud cover is September (Cloud cover 76).
The month with the least cloud cover is January (Cloud cover 32).

Average visibility in December
Greenville, Liberia

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

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

Greenville, Liberia

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