December weather forecast
Okoyo, Congo

December, the first month of the summer in Okoyo, is still a tropical month, with an average temperature varying between 31.5°C (88.7°F) and 22.3°C (72.1°F).

Temperature

In December, the average high-temperature is practically the same as in November - a still hot 31.5°C (88.7°F). The average low-temperature, in Okoyo, Congo, is 22.3°C (72.1°F).

Heat index

The average heat index in December is calculated to be a scorching 40°C (104°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, pregnancy). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In Okoyo, the average relative humidity in December is 74%.

Rainfall

In Okoyo, during December, the rain falls for 24 days and regularly aggregates up to 108mm (4.25") of precipitation. Throughout the year, there are 276.3 rainfall days, and 1248mm (49.13") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 13min of daylight.
On the first day of the month, sunrise is at 05:42 and sunset at 17:54. On the last day of December, sunrise is at 05:56 and sunset at 18:08 WAT.

Sunshine

The average sunshine in December is 9.7h.

UV index

The months with the highest UV index in Okoyo are January through August, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 in December transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.