December weather forecastCalumboyan, Philippines
December
Weather in December
December, the first month of the winter in Calumboyan, is also a moderately hot month, with an average temperature fluctuating between 28.4°C (83.1°F) and 25.7°C (78.3°F).Temperature
December's average high-temperature stands at a still moderately hot 28.4°C (83.1°F), showing little deviation from November's 28.7°C (83.7°F). Night temperatures during December experience a slight downturn, averaging a still moderately hot 25.7°C (78.3°F).Heat index
The average heat index in December is computed to be a tropical 33°C (91.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in December is 81%.Rainfall
In Calumboyan, during December, the rain falls for 21.1 days and regularly aggregates up to 110mm (4.33") of precipitation. Throughout the year, there are 253.1 rainfall days, and 913mm (35.94") of precipitation is accumulated.Sea temperature
In December, the average sea temperature in Calumboyan, Philippines, is 28.2°C (82.8°F).Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.
Daylight
The month with the shortest days is December, with an average of 11h and 30min of daylight.On the first day of December in Calumboyan, sunrise is at 5:46 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 5:32 pm PST.
Sunshine
In Calumboyan, Philippines, the average sunshine in December is 7.5h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Calumboyan. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 7 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Watch out! Sand and water enhance the UV exposure you receive.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Calumboyan, Philippines
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is May (30.5°C).
The month with the lowest average high temperature is January (27.5°C).
- Average low temperature in December: 25.7°C
The month with the highest average low temperature is May (26.9°C).
The coldest month (with the lowest average low temperature) is February (24.6°C).
Average pressure in December
Calumboyan, Philippines
- Average pressure in December: 1009.6mbar
The month with the highest atmospheric pressure is February (1011.7mbar).
The months with the lowest atmospheric pressure are July and August (1008.5mbar).
Average wind speed in December
Calumboyan, Philippines
- Average wind speed in December: 14.2km/h
The windiest month (with the highest average wind speed) is January (17.1km/h).
The calmest month (with the lowest average wind speed) is May (8.1km/h).
Average humidity in December
Calumboyan, Philippines
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are May, June and August (76%).
Average rainfall in December
Calumboyan, Philippines
- Average rainfall in December: 110mm
The wettest month (with the highest rainfall) is November (138mm).
The driest month (with the least rainfall) is March (36mm).
Average rainfall days in December
Calumboyan, Philippines
- Average rainfall days in December: 21.1 days
The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (14.3 days).
Average sea temperature in December
Calumboyan, Philippines
- Average sea temperature in December: 28.2°C
The best month for swimming (with the highest average sea temperature) is June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).
Average daylight in December /
Average sunshine in December
Calumboyan, Philippines
- Average daylight in December: 11h and 30min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 7h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in December
Calumboyan, Philippines
- Average sunshine days in December: 7.9 days
The month with the most sunshine days is March (11.6 days).
The month with the least sunshine days is July (3 days).
Average UV index in December
Calumboyan, Philippines
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Calumboyan, Philippines
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is April (Cloud cover 29).
Average visibility in December
Calumboyan, Philippines
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





