December weather forecastBiliran, Philippines
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Biliran, Philippines, with an average temperature fluctuating between 28.7°C (83.7°F) and 25.5°C (77.9°F).Temperature
The advent of December denotes an average high-temperature of a still moderately hot 28.7°C (83.7°F), subtly different from November's 29.4°C (84.9°F). An average low-temperature of 25.5°C (77.9°F) is witnessed throughout the month of December, a mere drop from the daytime peak.Heat index
The heat index value for December is appraised at a hot 34°C (93.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In December, the average relative humidity is 82%.Rainfall
In Biliran, in December, it is raining for 19.1 days, with typically 115mm (4.53") of accumulated precipitation. In Biliran, during the entire year, the rain falls for 266 days and collects up to 1334mm (52.52") of precipitation.Sea temperature
In December, the average sea temperature is 28°C (82.4°F).Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.
Daylight
The month with the shortest days is December, with an average of 11h and 30min of daylight.On the first day of December in Biliran, sunrise is at 5:46 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 5:28 pm PST.
Sunshine
The average sunshine in December in Biliran, Philippines, is 7.1h.UV index
The months with the highest UV index in Biliran are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Biliran, Philippines, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 7 turns into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be alert! The reflection of water and sand augments UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Biliran, Philippines
- Average high temperature in December: 28.7°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 (27.8°C).
- Average low temperature in December: 25.5°C
The months with the highest average low temperature are May, June and August (26.3°C).
The coldest months (with the lowest average low temperature) are February and March (24.3°C).
Average pressure in December
Biliran, Philippines
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is February (1012.1mbar).
The months with the lowest atmospheric pressure are July and August (1008.2mbar).
Average wind speed in December
Biliran, Philippines
- Average wind speed in December: 15.1km/h
The windiest month (with the highest average wind speed) is January (17km/h).
The calmest month (with the lowest average wind speed) is May (8.9km/h).
Average humidity in December
Biliran, Philippines
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are May, June and August (78%).
Average rainfall in December
Biliran, Philippines
- Average rainfall in December: 115mm
The wettest month (with the highest rainfall) is July (182mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in December
Biliran, Philippines
- Average rainfall days in December: 19.1 days
The month with the highest number of rainy days is July (29.1 days).
The month with the least rainy days is February (12.5 days).
Average sea temperature in December
Biliran, Philippines
- Average sea temperature in December: 28°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 (26.8°C).
Average daylight in December /
Average sunshine in December
Biliran, Philippines
- Average daylight in December: 11h and 30min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Biliran, Philippines
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is February (13.8 days).
The month with the least sunshine days is July (1.4 days).
Average UV index in December
Biliran, 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
Biliran, Philippines
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is May (Cloud cover 33).
Average visibility in December
Biliran, 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).





