December weather forecast
Mwanza, Malawi

Closing the year, December in Mwanza sees a further decrease in temperature with the highest falling to 30.8°C (87.4°F). The rainy season intensifies with 180mm (7.09") of rainfall, a noticeable leap from November. The decrease in daylight hours coincides with the increased cloud cover. Pressure levels comparably decrease as the moisture in the air increases, contributing to the classic rainy season weather. Despite the rainfall, the quantity of sunshine hours remains high, ensuring sunny spells in the midst of rainfall.

Temperature

December's arrival in Mwanza shows an average high-temperature of a still hot 30.8°C (87.4°F), hardly different from the previous month. Throughout December, Mwanza records an average temperature of 21.2°C (70.2°F) at night.

Heat index

In December, the average heat index is evaluated at a very hot 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. 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 remain especially vital for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Mwanza, the average relative humidity in December is 70%.

Rainfall

In Mwanza, in December, it is raining for 23 days, with typically 180mm (7.09") of accumulated precipitation. Throughout the year, there are 160.6 rainfall days, and 960mm (37.8") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 0min of daylight.
On the first day of December, sunrise is at 05:01 and sunset at 18:00. On the last day of the month, sunrise is at 05:13 and sunset at 18:16 CAT.

Sunshine

The months with the most sunshine in Mwanza are September and December, with an average of 9.7h of sunshine.

UV index

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 6 in December translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.