December weather forecastCalasiao, Philippines
December
Weather in December
The first month of the winter, December, is still a tropical month in Calasiao, Philippines, with an average temperature varying between 31.5°C (88.7°F) and 22.7°C (72.9°F).Temperature
The average high-temperature is a still tropical 31.5°C (88.7°F) in December, hardly different from the 31.9°C (89.4°F) recorded in November. During December, Calasiao observes a consistent average nighttime temperature of 22.7°C (72.9°F).Heat index
December's heat index is computed to be a blisteringly hot 40°C (104°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Be advised, the heat index considers values for conditions in shade and with a light breeze. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In Calasiao, the average relative humidity in December is 72%.Rainfall
In Calasiao, in December, it is raining for 5.9 days, with typically 18mm (0.71") of accumulated precipitation. In Calasiao, during the entire year, the rain falls for 187.6 days and collects up to 1079mm (42.48") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 12min of daylight.On the first day of the month, sunrise is at 6:10 am and sunset at 5:25 pm. On the last day of December, in Calasiao, sunrise is at 6:25 am and sunset at 5:37 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 7.4h of sunshine.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: During December, 7 as the daily maximum UV index converts into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Calasiao, Philippines
- Average high temperature in December: 31.5°C
The warmest month (with the highest average high temperature) is April (34.5°C).
The month with the lowest average high temperature is August (30.5°C).
- Average low temperature in December: 22.7°C
The month with the highest average low temperature is May (25.5°C).
The coldest month (with the lowest average low temperature) is January (21.6°C).
Average pressure in December
Calasiao, Philippines
- Average pressure in December: 1012.1mbar
The month with the highest atmospheric pressure is February (1013.8mbar).
The month with the lowest atmospheric pressure is August (1007.5mbar).
Average wind speed in December
Calasiao, Philippines
- Average wind speed in December: 7.4km/h
The windiest months (with the highest average wind speed) are January, February and April (8.2km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in December
Calasiao, Philippines
- Average humidity in December: 72%
The month with the highest relative humidity is September (83%).
The months with the lowest relative humidity are March and April (67%).
Average rainfall in December
Calasiao, Philippines
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is August (240mm).
The driest month (with the least rainfall) is January (7mm).
Average rainfall days in December
Calasiao, Philippines
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is July (28.4 days).
The month with the least rainy days is January (3.8 days).
Average daylight in December /
Average sunshine in December
Calasiao, Philippines
- Average daylight in December: 11h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in December: 7h and 24min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 24min).
Average sunshine days in December
Calasiao, Philippines
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is January (26.8 days).
The month with the least sunshine days is July (2 days).
Average UV index in December
Calasiao, 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
Calasiao, Philippines
- Average cloud cover in December: 20
The month with the most cloud cover is August (Cloud cover 45).
The months with the least cloud cover are January, February and December (Cloud cover 20).
Average visibility in December
Calasiao, Philippines
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).
