December weather forecastRibi, Sierra Leone
December
Weather in December
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ribi, Sierra Leone
- Average high temperature in December: 33.1°C
The warmest month (with the highest average high temperature) is March (38.4°C).
The month with the lowest average high temperature is August (27.6°C).
- Average low temperature in December: 19.7°C
The month with the highest average low temperature is April (24°C).
The coldest month (with the lowest average low temperature) is December (19.7°C).
Average pressure in December
Ribi, Sierra Leone
- Average pressure in December: 1011.5mbar
The month with the highest atmospheric pressure is July (1014.1mbar).
The months with the lowest atmospheric pressure are February and March (1010.5mbar).
Average wind speed in December
Ribi, Sierra Leone
- Average wind speed in December: 3.5km/h
The windiest month (with the highest average wind speed) is April (5.8km/h).
The calmest month (with the lowest average wind speed) is November (3.3km/h).
Average humidity in December
Ribi, Sierra Leone
- Average humidity in December: 66%
The month with the highest relative humidity is August (93%).
The months with the lowest relative humidity are January and February (58%).
Average rainfall in December
Ribi, Sierra Leone
- Average rainfall in December: 3mm
The wettest month (with the highest rainfall) is August (332mm).
The driest month (with the least rainfall) is December (3mm).
Average rainfall days in December
Ribi, Sierra Leone
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is January (2.2 days).
Average daylight in December /
Average sunshine in December
Ribi, Sierra Leone
- Average daylight in December: 11h and 36min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 9h and 30min
The month with the most sunshine is January (Average sunshine: 9h and 48min).
The month with the least sunshine is August (Average sunshine: 3h and 42min).
Average sunshine days in December
Ribi, Sierra Leone
- Average sunshine days in December: 27 days
The month with the most sunshine days is January (27.4 days).
The month with the least sunshine days is July (0.5 days).
Average UV index in December
Ribi, Sierra Leone
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).
Average cloud cover in December
Ribi, Sierra Leone
- Average cloud cover in December: 19
The month with the most cloud cover is August (Cloud cover 83).
The months with the least cloud cover are January and February (Cloud cover 15).
Average visibility in December
Ribi, Sierra Leone
- Average visibility in December: 9km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (5km).





