December weather forecastFirst Savannah, Guyana

Weather in December

The first month of the winter, December, is still a warm month in First Savannah, Guyana, with an average temperature ranging between max 29.9°C (85.8°F) and min 22.4°C (72.3°F).

Temperature

In December, First Savannah notes an average high-temperature of a warm 29.9°C (85.8°F), hardly different from the preceding month. In the month of December, First Savannah experiences an average low-temperature of 22.4°C (72.3°F).

Heat index

For December, the heat index is appraised at a sweltering 39°C (102.2°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. 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. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In December, the average relative humidity in First Savannah is 84%.

Rainfall

In First Savannah, in December, it is raining for 29.1 days, with typically 138mm (5.43") of accumulated precipitation. In First Savannah, Guyana, during the entire year, the rain falls for 312.9 days and collects up to 1254mm (49.37") of precipitation.

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 First Savannah, sunrise is at 05:47 and sunset at 17:33. On the last day of the month, sunrise is at 06:01 and sunset at 17:47 -04.

Sunshine

The average sunshine in December in First Savannah 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 reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.