December weather forecast
Matthews Ridge, Guyana

The first month of the winter, December, is also a moderately hot month in Matthews Ridge, Guyana, with temperature in the range of an average low of 23.4°C (74.1°F) and an average high of 29°C (84.2°F).

Temperature

December's advent notes a subtle adjustment in average high-temperature to a warm 29°C (84.2°F) from November. During the December nights, an average temperature of 23.4°C (74.1°F) is observed.

Heat index

The average heat index in December is appraised at a very hot 35°C (95°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

The months with the highest humidity in Matthews Ridge are July and December, with an average relative humidity of 83%.

Rainfall

In December, the rain falls for 27.4 days. Throughout December, 150mm (5.91") of precipitation is accumulated. In Matthews Ridge, during the entire year, the rain falls for 305.1 days and collects up to 1386mm (54.57") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 05:58 and sunset at 17:41. On the last day of December, sunrise is at 06:13 and sunset at 17:54 -04.

Sunshine

December has the least sunshine of the year, with an average of 6.4h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Matthews Ridge. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.