December weather forecast
Ribi, Sierra Leone

December, the first month of the winter in Ribi, is still a hot month, with an average temperature ranging between min 19.7°C (67.5°F) and max 33.1°C (91.6°F).

Temperature

In December, Ribi experiences a minor shift in meteorological conditions with average high-temperatures marked at a still tropical 33.1°C (91.6°F), closely mirroring the climate in November. Ribi documents a substantial deviation from daytime highs with a consistent low-temperature of 19.7°C (67.5°F) during December nights.

Heat index

In December, the average heat index is evaluated at a blisteringly hot 42°C (107.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Remember that heat index calculations are made for conditions in the shade with light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In December, the average relative humidity in Ribi, Sierra Leone, is 66%.

Rainfall

The month with the least rainfall is December, when the rain falls for 3.2 days and typically collects 3mm (0.12") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 36min of daylight.
On the first day of December in Ribi, Sierra Leone, sunrise is at 06:50 and sunset at 18:28. On the last day of the month, sunrise is at 07:05 and sunset at 18:41 GMT.

Sunshine

In Ribi, the average sunshine in December is 9.5h.

UV index

The months with the highest UV index are January through April, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 7 transforms into these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.