December weather forecast
Sunyani, Ghana

For Sunyani, December is a month of celebration with the arrival of pleasant weather characterized by drier conditions and cooler days. The dry season stands at its peak as the year ends, offering Sunyani sunny days and starry nights. Fewer hours of daylight coupled with low rainfall make it the perfect time for outdoor exploration and sightseeing in the city. Laced with comfort is the decreased relative humidity of 53%, breaking the continuous pattern of the high humidity of the past months. Thus, the year in Sunyani, Ghana wraps up with a deep sigh of relaxation in terms of weather, ready to start the cycle anew.

Temperature

An average high-temperature of a still tropical 34.5°C (94.1°F) marks December, exhibiting a close resemblance to the conditions in November. In Sunyani, the average temperature during the nights of December marks a significant drop from the daily high, settling at an agreeable 20.4°C (68.7°F).

Heat index

The heat index value during December is estimated at an extremely hot 41°C (105.8°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in December in Sunyani is 53%.

Rainfall

The months with the least rainfall are January and December Rain falls for 4.4 days and accumulates 4mm (0.16") of rain.

Daylight

The month with the shortest days is December, with an average of 11h and 42min of daylight.
On the first day of the month, sunrise is at 06:06 and sunset at 17:50. On the last day of December, in Sunyani, sunrise is at 06:21 and sunset at 18:03 GMT.

Sunshine

In Sunyani, the average sunshine in December is 7.9h.

UV index

January through April, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.