December weather forecastSan Antonio, Philippines

December

Weather in December

December, the first month of the winter in San Antonio, is still a warm month, with an average temperature varying between 29.3°C (84.7°F) and 24.2°C (75.6°F).

Temperature

As November turns into December, the average high-temperatures rest at a still warm 29.3°C (84.7°F), showing a minor variation from the prior month. In the month of December, an average of 24.2°C (75.6°F) marks the low-temperature in San Antonio.

Heat index

The average heat index in December is estimated at a sweltering 35°C (95°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In San Antonio, the average relative humidity in December is 77%.

Rainfall

In December, the rain falls for 13.5 days. Throughout December, 58mm (2.28") of precipitation is accumulated. In San Antonio, during the entire year, the rain falls for 237.5 days and collects up to 1892mm (74.49") of precipitation.

Daylight

The month with the shortest days in San Antonio, Philippines, is December, with an average of 11h and 18min of daylight.
On the first day of December in San Antonio, sunrise is at 6:09 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 5:40 pm PST.

Sunshine

In San Antonio, the average sunshine in December is 7h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index in San Antonio. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

December temperatures vary between a high-temperature of 29.3°C (84.7°F) and a low-temperature of 24.2°C (75.6°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in December is estimated at 35°C (95°F).

In San Antonio, Philippines, the average relative humidity in December is 77%.

In San Antonio, Philippines, in December, it is raining for 13.5 days, with typically 58mm (2.28") of accumulated precipitation.

With an average of 11h and 18min of daylight, December has the shortest days of the year in San Antonio, Philippines.

In San Antonio, the average day length in December is 11h and 16min.

In December, on the first day of the month, sunrise is at 6:09 am and sunset at 5:27 pm. On the last day of the month, in San Antonio, sunrise is at 6:24 am and sunset at 5:40 pm PST.

In December, the average sunshine duration is 7h.

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

The average daily maximum UV index in December is 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
San Antonio, Philippines

  • Average high temperature in December: 29.3°C

The warmest month (with the highest average high temperature) is May (31.4°C).
The month with the lowest average high temperature is January (28.3°C).

  • Average low temperature in December: 24.2°C

The month with the highest average low temperature is May (26.4°C).
The coldest months (with the lowest average low temperature) are January and February (23°C).

Average pressure in December
San Antonio, Philippines

  • Average pressure in December: 1011.2mbar

The month with the highest atmospheric pressure is February (1013.1mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).

Average wind speed in December
San Antonio, Philippines

  • Average wind speed in December: 12.9km/h

The windiest month (with the highest average wind speed) is January (13.4km/h).
The calmest month (with the lowest average wind speed) is May (8km/h).

Average humidity in December
San Antonio, Philippines

  • Average humidity in December: 77%

The months with the highest relative humidity are August and September (83%).
The months with the lowest relative humidity are March and April (73%).

Average rainfall in December
San Antonio, Philippines

  • Average rainfall in December: 58mm

The wettest month (with the highest rainfall) is August (424mm).
The driest month (with the least rainfall) is February (16mm).

Average rainfall days in December
San Antonio, Philippines

  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (29.4 days).
The month with the least rainy days is February (8.9 days).

Average daylight in December /
Average sunshine in December
San Antonio, Philippines

  • Average daylight in December: 11h and 18min

The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in December: 7h and 0min

The month with the most sunshine is April (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).

Average sunshine days in December
San Antonio, Philippines

  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is July (1.5 days).

Average UV index in December
San Antonio, Philippines

  • Average UV index in December: 7

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

Average cloud cover in December
San Antonio, Philippines

  • Average cloud cover in December: 27

The month with the most cloud cover is August (Cloud cover 53).
The months with the least cloud cover are February and March (Cloud cover 23).

Average visibility in December
San Antonio, Philippines

  • Average visibility in December: 10km

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