December weather forecastBulan, Philippines

December

Weather in December

The first month of the winter, December, is still a warm month in Bulan, Philippines, with an average temperature fluctuating between 26°C (78.8°F) and 28.1°C (82.6°F).

Temperature

As Bulan welcomes December, the average high-temperature records at a still moderately hot 28.1°C (82.6°F), marking an insignificant deviation from the prior month. Bulan's average nighttime temperature in December modestly descends to a still moderately hot 26°C (78.8°F).

Heat index

For December, the heat index is calculated to be a tropical 33°C (91.4°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. 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 'real feel' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

The months with the highest humidity in Bulan are January and December, with an average relative humidity of 82%.

Rainfall

In Bulan, Philippines, during December, the rain falls for 15.9 days and regularly aggregates up to 65mm (2.56") of precipitation. Throughout the year, in Bulan, there are 198.4 rainfall days, and 562mm (22.13") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Bulan is 27.8°C (82°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The month with the shortest days in Bulan is December, with an average of 11h and 24min of daylight.
On the first day of December in Bulan, sunrise is at 5:50 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 5:29 pm PST.

Sunshine

In December, the average sunshine is 6.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Bulan, Philippines, are January 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 average individuals.
Note: The UV index of 7 during December leads to these advisories:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.

Updated: Feb 7, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Bulan, is 28.1°C (82.6°F), while the average low-temperature is 26°C (78.8°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in December is calculated to be 33°C (91.4°F).

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

In December, the average relative humidity is 82%.

In Bulan, Philippines, in December, during 15.9 rainfall days, 65mm (2.56") of precipitation is typically accumulated.

In Bulan, the average seawater temperature in December is 27.8°C (82°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

With an average of 11h and 24min of daylight, December has the shortest days of the year in Bulan, Philippines.

In December, the average day length in Bulan is 11h and 24min.

In December, on the first day of the month, sunrise is at 5:50 am and sunset at 5:16 pm. On the last day of the month, in Bulan, Philippines, sunrise is at 6:05 am and sunset at 5:29 pm PST.

In Bulan, the average sunshine duration in December is 6.6h.

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

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

In Bulan, Philippines, the average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28.9°C

28.1°C

27.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

18.6km/h

21.3km/h

23.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

15.9

13.2

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

13.5

13.6

15.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Bulan, Philippines

Average high temperature in December: 28.1°C

The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (27.1°C).

Average low temperature in December: 26°C

The month with the highest average low temperature is May (27.4°C).
The coldest month (with the lowest average low temperature) is February (24.8°C).

Average pressure in December
Bulan, Philippines

Average pressure in December: 1010.3mbar

The month with the highest atmospheric pressure is February (1012.6mbar).
The month with the lowest atmospheric pressure is August (1007.8mbar).

Average wind speed in December
Bulan, Philippines

Average wind speed in December: 20.3km/h

The windiest month (with the highest average wind speed) is January (22.6km/h).
The calmest month (with the lowest average wind speed) is May (12km/h).

Average humidity in December
Bulan, Philippines

Average humidity in December: 82%

The months with the highest relative humidity are January and December (82%).
The months with the lowest relative humidity are May and June (77%).

Average rainfall in December
Bulan, Philippines

Average rainfall in December: 65mm

The wettest month (with the highest rainfall) is July (80mm).
The driest month (with the least rainfall) is February (14mm).

Average rainfall days in December
Bulan, Philippines

Average rainfall days in December: 15.9 days

The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is February (9.2 days).

Average sea temperature in December
Bulan, Philippines

Average sea temperature in December: 27.8°C

The best month for swimming (with the highest average sea temperature) is June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

Average daylight in December /
Average sunshine in December
Bulan, Philippines

Average daylight in December: 11h and 24min

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: 6h and 36min

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

Average sunshine days in December
Bulan, Philippines

Average sunshine days in December: 13.6 days

The month with the most sunshine days is March (19 days).
The month with the least sunshine days is July (5.3 days).

Average UV index in December
Bulan, 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
Bulan, 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 May (Cloud cover 27).

Average visibility in December
Bulan, 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).