December weather forecast
Calapan, Philippines

December

Weather in December

December, the first month of the winter in Calapan, is still a warm month, with an average temperature fluctuating between 24.6°C (76.3°F) and 27.6°C (81.7°F).

Temperature

The initiation of December sees an average high-temperature of a still moderately hot 27.6°C (81.7°F), showing minor variations from the previous month. During December, Calapan's nights hold steady with an average temperature of 24.6°C (76.3°F), barely dropping from the daytime highs.

Heat index

During December, the heat index is computed to be a tropical 31°C (87.8°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

January and December, with an average relative humidity of 82%, are the most humid months in Calapan.

Rainfall

The month with the most rainfall in Calapan is December, when the rain falls for 25.2 days and typically aggregates up to 183mm (7.2") of precipitation.

Sea temperature

In Calapan, Philippines, the average seawater temperature in December is 27.8°C (82°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

The month with the shortest days is December, with an average of 11h and 24min of daylight.
On the first day of the month, sunrise is at 6:02 am and sunset at 5:26 pm. On the last day of December, sunrise is at 6:17 am and sunset at 5:38 pm PST.

Sunshine

The average sunshine in December is 5.7h.

UV index

The months with the lowest UV index in Calapan are January and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.

Frequently asked questions

What are the temperatures in Calapan in December?
Calapan in December has an average high-temperature of 27.6°C (81.7°F) and an average low-temperature of 24.6°C (76.3°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is computed to be 31°C (87.8°F).
What is the most humid month in Calapan?
The months with the highest humidity are January and December, with an average relative humidity of 82%.
What is the average humidity in December in Calapan?
In December, the average relative humidity in Calapan is 82%.
What is the rainiest month in Calapan?
December is the month with the most rainfall in Calapan. Rain falls for 25.2 days and accumulates 183mm (7.2") of precipitation.
How much does it rain in Calapan in December?
In Calapan, in December, during 25.2 rainfall days, 183mm (7.2") of precipitation is typically accumulated.
How warm is the water in December in Calapan?
In December, the average sea temperature in Calapan, Philippines, is 27.8°C (82°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
What is the month with the shortest days in Calapan?
With an average of 11h and 24min of daylight, December has the shortest days of the year in Calapan, Philippines.
What is the average length of the day in December in Calapan?
In Calapan, Philippines, the average day length in December is 11h and 22min.
When are sunrise and sunset in December in Calapan?
On the first day of December in Calapan, Philippines, sunrise is at 6:02 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 5:38 pm PST.
How long on average sun shines in December in Calapan?
In Calapan, the average sunshine duration in December is 5.7h.
When is the lowest UV index in Calapan?
The months with the lowest UV index in Calapan are January and December, with an average maximum UV index of 6.
How high is the UV index in December in Calapan?
In December, the average daily maximum UV index in Calapan, Philippines, is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Calapan, Philippines
  • Average high temperature in December: 27.6°C

The warmest month (with the highest average high temperature) is May (30.4°C).
The month with the lowest average high temperature is January (26.6°C).

  • Average low temperature in December: 24.6°C

The month with the highest average low temperature is June (26.5°C).
The coldest month (with the lowest average low temperature) is February (23.3°C).

Average pressure in December
Calapan, Philippines
  • Average pressure in December: 1010.5mbar

The month with the highest atmospheric pressure is February (1012.6mbar).
The months with the lowest atmospheric pressure are July and August (1007.9mbar).

Average wind speed in December
Calapan, Philippines
  • Average wind speed in December: 14.2km/h

The windiest month (with the highest average wind speed) is January (14.8km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).

Average humidity in December
Calapan, Philippines
  • Average humidity in December: 82%

The months with the highest relative humidity are January and December (82%).
The month with the lowest relative humidity is May (76%).

Average rainfall in December
Calapan, Philippines
  • Average rainfall in December: 183mm

The wettest month (with the highest rainfall) is December (183mm).
The driest month (with the least rainfall) is April (38mm).

Average rainfall days in December
Calapan, Philippines
  • Average rainfall days in December: 25.2 days

The month with the highest number of rainy days is December (25.2 days).
The month with the least rainy days is April (15.3 days).

Average sea temperature in December
Calapan, Philippines
  • Average sea temperature in December: 27.8°C

The best month for swimming (with the highest average sea temperature) is June (30°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

Average daylight in December /
Average sunshine in December
Calapan, Philippines
  • Average daylight in December: 11h and 2min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).

  • Average sunshine in December: 5h and 4min

The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in December
Calapan, Philippines
  • Average sunshine days in December: 3.5 days

The month with the most sunshine days is August (9.8 days).
The month with the least sunshine days is November (1.4 days).

Average UV index in December
Calapan, Philippines
  • Average UV index in December: 6

The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).

Average cloud cover in December
Calapan, Philippines
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is April (Cloud cover 27).

Average visibility in December
Calapan, 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).

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