December weather forecastCasanayan, Philippines

December

Weather in December

The first month of the winter, December, is still a warm month in Casanayan, Philippines, with an average temperature varying between 26.7°C (80.1°F) and 27.9°C (82.2°F).

Temperature

Casanayan's weather in December indicates an average high-temperature of a still moderately hot 27.9°C (82.2°F), nearly consistent with the 28.5°C (83.3°F) of November. Night temperatures during December in Casanayan experience a slight downturn, averaging a still warm 26.7°C (80.1°F).

Heat index

For most parts of December, the heat index is evaluated at a tropical 32°C (89.6°F). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

January and December, with an average relative humidity of 81%, are the most humid months in Casanayan, Philippines.

Rainfall

The month with the most rainfall in Casanayan is December, when the rain falls for 27.3 days and typically aggregates up to 256mm (10.08") of precipitation.

Daylight

The month with the shortest days in Casanayan is December, with an average of 11h and 30min of daylight.
On the first day of December, sunrise is at 5:51 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 5:34 pm PST.

Sunshine

In December, the average sunshine is 6.9h.

UV index

The months with the highest UV index in Casanayan, Philippines, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Casanayan are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

An average high-temperature, in December, in Casanayan, is 27.9°C (82.2°F) and the average low-temperature is 26.7°C (80.1°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in December is evaluated at 32°C (89.6°F).

The months with the highest humidity in Casanayan, Philippines, are January and December, with an average relative humidity of 81%.

In Casanayan, Philippines, the average relative humidity in December is 81%.

The month with the most rainfall is December, when the rain falls for 27.3 days and typically aggregates up to 256mm (10.08") of precipitation.

In Casanayan, in December, during 27.3 rainfall days, 256mm (10.08") of precipitation is typically accumulated.

The month with the shortest days in Casanayan is December, with an average of 11h and 30min of daylight.

In Casanayan, Philippines, the average day length in December is 11h and 28min.

On the first day of December in Casanayan, sunrise is at 5:51 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 5:34 pm PST.

In December, the average sunshine duration in Casanayan, Philippines, is 6.9h.

The months with the highest UV index in Casanayan are January through December, with an average maximum UV index of 7.

The months with the lowest UV index in Casanayan are January through December, with an average maximum UV index of 7.

The average daily maximum UV index in December in Casanayan is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Casanayan, Philippines

  • Average high temperature in December: 27.9°C

The warmest months (with the highest average high temperature) are May and June (29.8°C).
The month with the lowest average high temperature is January (27.1°C).

  • Average low temperature in December: 26.7°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 (25.6°C).

Average pressure in December
Casanayan, Philippines

  • Average pressure in December: 1009.9mbar

The month with the highest atmospheric pressure is February (1012.1mbar).
The months with the lowest atmospheric pressure are July and August (1008.4mbar).

Average wind speed in December
Casanayan, Philippines

  • Average wind speed in December: 22.6km/h

The windiest month (with the highest average wind speed) is January (25.6km/h).
The calmest month (with the lowest average wind speed) is May (11.6km/h).

Average humidity in December
Casanayan, Philippines

  • Average humidity in December: 81%

The months with the highest relative humidity are January and December (81%).
The months with the lowest relative humidity are May and June (75%).

Average rainfall in December
Casanayan, Philippines

  • Average rainfall in December: 256mm

The wettest month (with the highest rainfall) is December (256mm).
The driest month (with the least rainfall) is April (85mm).

Average rainfall days in December
Casanayan, Philippines

  • Average rainfall days in December: 27.3 days

The month with the highest number of rainy days is December (27.3 days).
The month with the least rainy days is February (19.4 days).

Average daylight in December /
Average sunshine in December
Casanayan, 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 54min

The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Casanayan, Philippines

  • Average sunshine days in December: 2.4 days

The months with the most sunshine days are February and March (5.6 days).
The month with the least sunshine days is November (2.2 days).

Average UV index in December
Casanayan, 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
Casanayan, Philippines

  • Average cloud cover in December: 47

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 30).

Average visibility in December
Casanayan, Philippines

  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April, May, June, July and August (10km).
The months with the lowest visibility are September, October, November and December (9km).