December weather forecastCasian, Philippines
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Casian, Philippines, with an average temperature varying between 28.8°C (83.8°F) and 26.9°C (80.4°F).Temperature
Welcoming December, Casian notes an average high-temperature of a still warm 28.8°C (83.8°F), nearly consistent with November's 29.2°C (84.6°F). Casian documents a consistent average low-temperature of 26.9°C (80.4°F) at night during December.Heat index
December's average heat index is estimated at a hot 34°C (93.2°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
In December, the average relative humidity in Casian is 78%.Rainfall
In Casian, Philippines, in December, it is raining for 22.7 days, with typically 110mm (4.33") of accumulated precipitation. In Casian, during the entire year, the rain falls for 259.3 days and collects up to 1372mm (54.02") of precipitation.Sea temperature
In Casian, in December, the average water temperature is 28.6°C (83.5°F).Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.
Daylight
December has the shortest days of the year, with an average of 11h and 30min of daylight.On the first day of the month, sunrise is at 6:04 am and sunset at 5:36 pm. On the last day of December, in Casian, sunrise is at 6:19 am and sunset at 5:48 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 6.5h of sunshine.UV index
The months with the highest UV index in Casian, Philippines, are January through June, August through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 7 during December leads to these instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be alert! The reflection of water and sand augments UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Casian, Philippines
- Average high temperature in December: 28.8°C
The warmest month (with the highest average high temperature) is May (30.6°C).
The months with the lowest average high temperature are January and February (27.9°C).
- Average low temperature in December: 26.9°C
The month with the highest average low temperature is May (27.8°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).
Average pressure in December
Casian, Philippines
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is February (1011.4mbar).
The month with the lowest atmospheric pressure is July (1008.1mbar).
Average wind speed in December
Casian, Philippines
- Average wind speed in December: 19km/h
The windiest month (with the highest average wind speed) is January (20.8km/h).
The calmest month (with the lowest average wind speed) is May (10.2km/h).
Average humidity in December
Casian, Philippines
- Average humidity in December: 78%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Casian, Philippines
- Average rainfall in December: 110mm
The wettest month (with the highest rainfall) is July (229mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days in December
Casian, Philippines
- Average rainfall days in December: 22.7 days
The month with the highest number of rainy days is July (29.1 days).
The month with the least rainy days is February (10.3 days).
Average sea temperature in December
Casian, Philippines
- Average sea temperature in December: 28.6°C
The best months for swimming (with the highest average sea temperature) are May and June (29.9°C).
The coldest months (with the lowest average sea temperature) are February and March (27.5°C).
Average daylight in December /
Average sunshine in December
Casian, Philippines
- Average daylight in December: 11h and 30min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is April (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Casian, Philippines
- Average sunshine days in December: 4.7 days
The month with the most sunshine days is February (15.6 days).
The months with the least sunshine days are June and July (1.2 days).
Average UV index in December
Casian, Philippines
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 6).
Average cloud cover in December
Casian, Philippines
- Average cloud cover in December: 36
The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are March and April (Cloud cover 21).
Average visibility in December
Casian, Philippines
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are July and August (9km).
