December weather forecastCastañas, Philippines
December
Weather in December
December, the first month of the winter in Castañas, is also a moderately hot month, with an average temperature fluctuating between 27.4°C (81.3°F) and 24.1°C (75.4°F).Temperature
With the start of December, Castañas measures an average high-temperature of a still warm 27.4°C (81.3°F), not significantly differing from November's 28.4°C (83.1°F). In Castañas, the average low-temperature during December nights tends to settle at a still warm 24.1°C (75.4°F), indicating a slight drop from the daytime peak.Heat index
In December, the heat index is computed to be a hot 31°C (87.8°F). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The months with the highest humidity in Castañas are July, September through December, with an average relative humidity of 85%.Rainfall
In December, in Castañas, the rain falls for 28.5 days. Throughout December, 153mm (6.02") of precipitation is accumulated. In Castañas, during the entire year, the rain falls for 292.5 days and collects up to 1308mm (51.5") of precipitation.Sea temperature
In Castañas, Philippines, the average seawater temperature in December is 27.7°C (81.9°F).Note: For water activities like swimming, diving, and more, temperatures ranging between 25°C (77°F) and 29°C (84.2°F) offer superior comfort and enjoyment for lengthy durations.
Daylight
The month with the shortest days is December, with an average of 11h and 18min of daylight.On the first day of the month, sunrise is at 6:01 am and sunset at 5:23 pm. On the last day of December, in Castañas, sunrise is at 6:17 am and sunset at 5:36 pm PST.
Sunshine
In December, the average sunshine is 4.3h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take caution! The UV rays from the Sun gain strength from sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castañas, Philippines
- Average high temperature in December: 27.4°C
The warmest month (with the highest average high temperature) is May (31.1°C).
The month with the lowest average high temperature is January (26.6°C).
- Average low temperature in December: 24.1°C
The months with the highest average low temperature are May and June (25.1°C).
The coldest month (with the lowest average low temperature) is February (22.8°C).
Average pressure in December
Castañas, Philippines
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is February (1013.1mbar).
The month with the lowest atmospheric pressure is August (1007.7mbar).
Average wind speed in December
Castañas, Philippines
- Average wind speed in December: 13.7km/h
The windiest month (with the highest average wind speed) is January (14.4km/h).
The calmest month (with the lowest average wind speed) is June (6.8km/h).
Average humidity in December
Castañas, Philippines
- Average humidity in December: 85%
The months with the highest relative humidity are July, September, October, November and December (85%).
The month with the lowest relative humidity is April (78%).
Average rainfall in December
Castañas, Philippines
- Average rainfall in December: 153mm
The wettest month (with the highest rainfall) is May (167mm).
The driest month (with the least rainfall) is March (41mm).
Average rainfall days in December
Castañas, Philippines
- Average rainfall days in December: 28.5 days
The month with the highest number of rainy days is December (28.5 days).
The month with the least rainy days is April (20.3 days).
Average sea temperature in December
Castañas, Philippines
- Average sea temperature in December: 27.7°C
The best month for swimming (with the highest average sea temperature) is June (29.9°C).
The coldest month (with the lowest average sea temperature) is February (26.7°C).
Average daylight in December /
Average sunshine in December
Castañas, Philippines
- Average daylight in December: 11h and 18min
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 18min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Castañas, Philippines
- Average sunshine days in December: 1.1 days
The month with the most sunshine days is August (7.9 days).
The month with the least sunshine days is November (0.5 days).
Average UV index in December
Castañas, Philippines
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in December
Castañas, Philippines
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in December
Castañas, Philippines
- Average visibility in December: 10km
The months with the highest visibility are February, March, April and December (10km).
The months with the lowest visibility are January, May, June, July, August, September, October and November (9km).
