December weather forecastSiyu, Kenya

Weather in December

The first month of the summer, December, is still a tropical month in Siyu, Kenya, with temperature in the range of an average low of 25.5°C (77.9°F) and an average high of 30.5°C (86.9°F).

Temperature

With the onset of December, Siyu's average high-temperature clocks in at a still tropical 30.5°C (86.9°F), showing a minor fluctuation from the previous month. Siyu sees a gentle drop from the daily peak temperature in December, with an average low settling at a warm 25.5°C (77.9°F).

Heat index

December's mean heat index is estimated at a torrid 38°C (100.4°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Siyu, in December, during 21.6 rainfall days, 77mm (3.03") of precipitation is typically accumulated. In Siyu, during the entire year, the rain falls for 192.5 days and collects up to 641mm (25.24") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 12min of daylight.
On the first day of December, sunrise is at 05:57 and sunset at 18:11. On the last day of the month, sunrise is at 06:11 and sunset at 18:26 EAT.

Sunshine

In December, the average sunshine is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Deter overexposure. Protecting against the sun's effects is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.