December weather forecast
Calumpang, Philippines

The first month of the winter, December, is also a moderately hot month in Calumpang, Philippines, with temperature in the range of an average high of 29.6°C (85.3°F) and an average low of 22.5°C (72.5°F).

Temperature

The high-temperature average in December for Calumpang is a still moderately hot 29.6°C (85.3°F), staying closely aligned with November's conditions. Calumpang experiences an average temperature drop to a pleasant 22.5°C (72.5°F) during December nights.

Heat index

The average heat index in December is calculated to be a torrid 37°C (98.6°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in December is 81%.

Rainfall

In December, in Calumpang, the rain falls for 22.5 days. Throughout December, 78mm (3.07") of precipitation is accumulated. Throughout the year, there are 291.7 rainfall days, and 1307mm (51.46") of precipitation is accumulated.

Daylight

With an average of 11h and 48min of daylight, December has the shortest days of the year in Calumpang.
On the first day of the month, sunrise is at 5:34 am and sunset at 5:22 pm. On the last day of December, in Calumpang, Philippines, sunrise is at 5:49 am and sunset at 5:35 pm PST.

Sunshine

The months with the most sunshine are February, March and December, with an average of 8.6h of sunshine.

UV index

The months with the lowest UV index are January through March, May through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. 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. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.