Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Santa Monica's December average high-temperature settles at a still moderately hot 28.2°C (82.8°F), showing a near match with the preceding month. Night temperatures in December exhibit a subtle decrease, settling at an average of 26.4°C (79.5°F).Heat index
December's heat index is estimated at a tropical 33°C (91.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In Santa Monica, Philippines, the average relative humidity in December is 80%.Rainfall
In December, the rain falls for 24.7 days. Throughout December, 199mm (7.83") of precipitation is accumulated. In Santa Monica, during the entire year, the rain falls for 257.2 days and collects up to 1339mm (52.72") of precipitation.Sea temperature
In Santa Monica, the average seawater temperature in December is 28.4°C (83.1°F).Note: Between the temperatures of 25°C (77°F) and 29°C (84.2°F), water is considered very warm, providing pleasure in water activities without discomfort over lengthy periods.
Daylight
December has the shortest days of the year, with an average of 11h and 36min of daylight.On the first day of the month, sunrise is at 5:37 am and sunset at 5:12 pm. On the last day of December, sunrise is at 5:52 am and sunset at 5:25 pm PST.
Sunshine
The average sunshine in December is 7.7h.UV index
January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 7 translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during December?
What is the average humidity in December?
How many days does it rain in December?
What is the sea water temperature in December?
What is the month with the shortest days in Santa Monica?
How many hours of daylight does Santa Monica have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Santa Monica have in December?
What are the months with the highest UV index?
What is the UV index intensity in December?
Average temperature in December
Santa Monica, Philippines
- Average high temperature in December: 28.2°C
The warmest month (with the highest average high temperature) is May (29.9°C).
The month with the lowest average high temperature is February (27.3°C).
- Average low temperature in December: 26.4°C
The month with the highest average low temperature is May (27.2°C).
The coldest month (with the lowest average low temperature) is February (25.5°C).
Average pressure in December
Santa Monica, Philippines
- Average pressure in December: 1009.5mbar
The month with the highest atmospheric pressure is February (1011.6mbar).
The months with the lowest atmospheric pressure are July and August (1008.6mbar).
Average wind speed in December
Santa Monica, Philippines
- Average wind speed in December: 16.8km/h
The windiest month (with the highest average wind speed) is January (19.4km/h).
The calmest month (with the lowest average wind speed) is June (11.4km/h).
Average humidity in December
Santa Monica, Philippines
- Average humidity in December: 80%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are June, August and September (75%).
Average rainfall in December
Santa Monica, Philippines
- Average rainfall in December: 199mm
The wettest month (with the highest rainfall) is January (268mm).
The driest month (with the least rainfall) is May (48mm).
Average rainfall days in December
Santa Monica, Philippines
- Average rainfall days in December: 24.7 days
The month with the highest number of rainy days is January (26.7 days).
The month with the least rainy days is May (16.4 days).
Average sea temperature in December
Santa Monica, Philippines
- Average sea temperature in December: 28.4°C
The best months for swimming (with the highest average sea temperature) are June and October (29.8°C).
The coldest month (with the lowest average sea temperature) is January (27.6°C).
Average daylight in December /
Average sunshine in December
Santa Monica, Philippines
- Average daylight in December: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in December
Santa Monica, Philippines
- Average sunshine days in December: 3.4 days
The month with the most sunshine days is May (11.9 days).
The month with the least sunshine days is January (2.5 days).
Average UV index in December
Santa Monica, Philippines
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in December
Santa Monica, Philippines
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in December
Santa Monica, Philippines
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
