December weather forecastMapanas, Philippines
December
Weather in December
The first month of the winter, December, is still a warm month in Mapanas, Philippines, with an average temperature fluctuating between 28.3°C (82.9°F) and 25.6°C (78.1°F).Temperature
The beginning of December reveals an average high-temperature of a still warm 28.3°C (82.9°F), showing minimal deviation from the previous month. Mapanas registers an average low-temperature of 25.6°C (78.1°F) throughout December, a modest decrease from its daytime highs.Heat index
For December, the heat index is calculated to be a tropical 33°C (91.4°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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
January and December, with an average relative humidity of 83%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 28.9 days and typically aggregates up to 382mm (15.04") of precipitation.Sea temperature
In Mapanas, the average seawater temperature in December is 28.3°C (82.9°F).Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.
Daylight
With an average of 11h and 24min of daylight, December has the shortest days of the year.On the first day of December in Mapanas, sunrise is at 5:44 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 5:24 pm PST.
Sunshine
In December, the average sunshine in Mapanas is 6.5h.UV index
With an average maximum UV index of 6, December is the month with the lowest UV index in Mapanas, Philippines. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 6 in December translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mapanas, Philippines
- Average high temperature in December: 28.3°C
The warmest month (with the highest average high temperature) is June (31.1°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in December: 25.6°C
The months with the highest average low temperature are May and June (26.1°C).
The coldest month (with the lowest average low temperature) is February (24.7°C).
Average pressure in December
Mapanas, Philippines
- Average pressure in December: 1010mbar
The month with the highest atmospheric pressure is February (1012.4mbar).
The month with the lowest atmospheric pressure is August (1007.9mbar).
Average wind speed in December
Mapanas, Philippines
- Average wind speed in December: 18.1km/h
The windiest month (with the highest average wind speed) is January (20.1km/h).
The calmest month (with the lowest average wind speed) is June (10.9km/h).
Average humidity in December
Mapanas, Philippines
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are May and August (78%).
Average rainfall in December
Mapanas, Philippines
- Average rainfall in December: 382mm
The wettest month (with the highest rainfall) is December (382mm).
The driest month (with the least rainfall) is April (75mm).
Average rainfall days in December
Mapanas, Philippines
- Average rainfall days in December: 28.9 days
The month with the highest number of rainy days is December (28.9 days).
The month with the least rainy days is August (17.6 days).
Average sea temperature in December
Mapanas, Philippines
- Average sea temperature in December: 28.3°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 (27.3°C).
Average daylight in December /
Average sunshine in December
Mapanas, Philippines
- Average daylight in December: 11h and 24min
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 24min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Mapanas, Philippines
- Average sunshine days in December: 0.7 days
The month with the most sunshine days is August (13 days).
The month with the least sunshine days is December (0.7 days).
Average UV index in December
Mapanas, Philippines
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 6).
Average cloud cover in December
Mapanas, Philippines
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in December
Mapanas, Philippines
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).





