December weather forecastSan Guillermo, Philippines

December

Weather in December

December, the first month of the winter in San Guillermo, is also a moderately hot month, with temperature in the range of an average high of 25.7°C (78.3°F) and an average low of 20°C (68°F).

Temperature

The ushering in of December brings an average high-temperature of a still warm 25.7°C (78.3°F), closely mirroring the 27.5°C (81.5°F) of November. During the nights in December, San Guillermo experiences a consistent average temperature of 20°C (68°F).

Humidity

In December, the average relative humidity is 88%.

Rainfall

In San Guillermo, in December, it is raining for 13.5 days, with typically 68mm (2.68") of accumulated precipitation. In San Guillermo, Philippines, during the entire year, the rain falls for 222.7 days and collects up to 872mm (34.33") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 12min of daylight.
On the first day of December, sunrise is at 6:05 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 5:29 pm PST.

Sunshine

January and December, with an average of 4.6h of sunshine, are months with the least sunshine.

UV index

January and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 5 during December translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

In December, the average high-temperature and low-temperature are 25.7°C (78.3°F) and 20°C (68°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in November is calculated to be 32°C (89.6°F).

In December, the average relative humidity is 88%.

In December, the rain falls for 13.5 days. Throughout December, 68mm (2.68") of precipitation is accumulated.

December has the shortest days of the year, with an average of 11h and 12min of daylight.

The average day length in December is 11h and 9min.

In December, on the first day of the month, sunrise is at 6:05 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 5:29 pm PST.

The months with the least sunshine are January and December, with an average of 4.6h of sunshine.

In December, the average sunshine duration is 4.6h.

January and December, with an average maximum UV index of 5, are months with the lowest UV index.

The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
San Guillermo, Philippines

  • Average high temperature in December: 25.7°C

The warmest month (with the highest average high temperature) is June (32.2°C).
The month with the lowest average high temperature is January (24.3°C).

  • Average low temperature in December: 20°C

The month with the highest average low temperature is June (22.8°C).
The coldest months (with the lowest average low temperature) are January and February (18.3°C).

Average pressure in December
San Guillermo, Philippines

  • Average pressure in December: 1013.3mbar

The months with the highest atmospheric pressure are January and February (1014.9mbar).
The month with the lowest atmospheric pressure is August (1007.2mbar).

Average wind speed in December
San Guillermo, Philippines

  • Average wind speed in December: 5.8km/h

The windiest month (with the highest average wind speed) is October (6.6km/h).
The calmest month (with the lowest average wind speed) is May (4.8km/h).

Average humidity in December
San Guillermo, Philippines

  • Average humidity in December: 88%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are May and June (78%).

Average rainfall in December
San Guillermo, Philippines

  • Average rainfall in December: 68mm

The wettest month (with the highest rainfall) is October (109mm).
The driest month (with the least rainfall) is February (33mm).

Average rainfall days in December
San Guillermo, Philippines

  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is July (24.5 days).
The month with the least rainy days is December (13.5 days).

Average daylight in December /
Average sunshine in December
San Guillermo, 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: 4h and 36min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).

Average sunshine days in December
San Guillermo, Philippines

  • Average sunshine days in December: 14.5 days

The month with the most sunshine days is December (14.5 days).
The month with the least sunshine days is September (4.5 days).

Average UV index in December
San Guillermo, Philippines

  • Average UV index in December: 5

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).

Average cloud cover in December
San Guillermo, Philippines

  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is June (Cloud cover 32).

Average visibility in December
San Guillermo, Philippines

  • Average visibility in December: 8km

The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January and February (7km).