December weather forecast
Yonibana, Sierra Leone

Yonibana, Sierra Leone welcomes December with open skies and a lot more sunshine than the previous months. As the sun regains its dominion over the skies, the temperatures begin to rise yet do not reach the year's maximum. Rainfall is at its lowest in the year at 4mm (0.16"), pointing to a return of the dry season. With the humidity level reeling back to 67%, it marks the beginning of a season that will carry forward into the new year. The weather in December thus serves as the standard bearer for the impending dry months.

Temperature

Yonibana records a slight change with December's average high-temperatures adjusting to a still hot 33.1°C (91.6°F) from November's 31.6°C (88.9°F). A significant temperature decrease to an average a refreshing 19.9°C (67.8°F) characterizes Yonibana's nighttime temperatures during December.

Heat index

During December, the heat index is calculated to be a blisteringly hot 43°C (109.4°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity in Yonibana, Sierra Leone, is 67%.

Rainfall

In Yonibana, in December, during 3.4 rainfall days, 4mm (0.16") of precipitation is typically accumulated. In Yonibana, during the entire year, the rain falls for 228.1 days and collects up to 1418mm (55.83") of precipitation.

Daylight

With an average of 11h and 36min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 06:48 and sunset at 18:28. On the last day of December, in Yonibana, sunrise is at 07:02 and sunset at 18:41 GMT.

Sunshine

The average sunshine in December in Yonibana, Sierra Leone, is 9.4h.

UV index

The months with the highest UV index are January through May, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during December translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.