December weather forecastPomona, Guyana

December

Weather in December

December, the first month of the winter in Pomona, is still a warm month, with an average temperature varying between 22.4°C (72.3°F) and 29.9°C (85.8°F).

Temperature

The average high-temperature in December, at a moderately hot 29.9°C (85.8°F), reveals a modest deviation from November's 31.5°C (88.7°F). December generally records an average low-temperature of 22.4°C (72.3°F).

Heat index

During December, the heat index is estimated at a sweltering 39°C (102.2°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
In reference to the heat index, it's for places in shade and with a slight wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 29.1 days. Throughout December, 138mm (5.43") of precipitation is accumulated. Throughout the year, there are 312.9 rainfall days, and 1254mm (49.37") of precipitation is accumulated.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year in Pomona.
On the first day of the month, sunrise is at 05:50 and sunset at 17:35. On the last day of December, sunrise is at 06:05 and sunset at 17:48 -04.

Sunshine

The average sunshine in December is 6.7h.

UV index

January, February, May, June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during December leads to these advisories:
Resist overexposure. Safeguarding from solar damage is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Updated: Feb 19, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Pomona, is 29.9°C (85.8°F), while the low-temperature averages to 22.4°C (72.3°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in December is estimated at 39°C (102.2°F).

The average relative humidity in December in Pomona is 84%.

In Pomona, during December, the rain falls for 29.1 days and regularly aggregates up to 138mm (5.43") of precipitation.

The month with the shortest days in Pomona, Guyana, is December, with an average of 11h and 42min of daylight.

In Pomona, the average day length in December is 11h and 43min.

On the first day of December, sunrise is at 05:50 and sunset at 17:35. On the last day of the month, sunrise is at 06:05 and sunset at 17:48 -04.

In December, the average sunshine duration in Pomona, Guyana, is 6.7h.

January, February, May, June and December, with an average maximum UV index of 6, are months with the lowest UV index in Pomona.

The average daily maximum UV index in December in Pomona, Guyana, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

31.5°C

29.9°C

29.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.5km/h

7km/h

7.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

1.6

0.3

1.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Pomona, Guyana

Average high temperature in December: 29.9°C

The warmest month (with the highest average high temperature) is September (33.1°C).
The month with the lowest average high temperature is January (29.3°C).

Average low temperature in December: 22.4°C

The month with the highest average low temperature is October (23.5°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

Average pressure in December
Pomona, Guyana

Average pressure in December: 1011.4mbar

The month with the highest atmospheric pressure is June (1013.3mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in December
Pomona, Guyana

Average wind speed in December: 6km/h

The windiest month (with the highest average wind speed) is March (7.3km/h).
The calmest months (with the lowest average wind speed) are July and August (5.1km/h).

Average humidity in December
Pomona, Guyana

Average humidity in December: 84%

The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are September and October (78%).

Average rainfall in December
Pomona, Guyana

Average rainfall in December: 138mm

The wettest month (with the highest rainfall) is June (167mm).
The driest month (with the least rainfall) is September (55mm).

Average rainfall days in December
Pomona, Guyana

Average rainfall days in December: 29.1 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is August (20.8 days).

Average daylight in December /
Average sunshine in December
Pomona, Guyana

Average daylight in December: 11h and 42min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

Average sunshine in December: 6h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in December
Pomona, Guyana

Average sunshine days in December: 0.3 days

The month with the most sunshine days is August (8.5 days).
The month with the least sunshine days is December (0.3 days).

Average UV index in December
Pomona, Guyana

Average UV index in December: 6

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