December weather forecast
Blantyre, Malawi

December sweeps in a new wave of weather conditions in Blantyre, Malawi. The arrival of December is accompanied by an increase in average rainfall, marking the beginning of the rainy season once more. The city turns into a lush, green paradise with the onset of the rains. Interestingly, visibility maintains a steady 9km (5.6mi), despite the increase in rainfall and cloud cover. The rainy season once again visits, closing the cycle of weather in the city.

Temperature

Shifting into December, Blantyre records an average high-temperature of a still tropical 30.2°C (86.4°F), presenting minor fluctuations compared to the previous month. During the nights in December, Blantyre observes an average low-temperature of 21.1°C (70°F).

Heat index

During December, the heat index is calculated to be a fiery hot 36°C (96.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Blantyre, the average relative humidity in December is 73%.

Rainfall

In December, in Blantyre, Malawi, the rain falls for 25.7 days. Throughout December, 275mm (10.83") of precipitation is accumulated. Throughout the year, in Blantyre, there are 193 rainfall days, and 1366mm (53.78") of precipitation is accumulated.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 04:59 and sunset at 17:59. On the last day of the month, sunrise is at 05:11 and sunset at 18:14 CAT.

Sunshine

The average sunshine in December is 9.3h.

UV index

In December, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.