December weather forecast
Glan, Philippines

December, the first month of the winter in Glan, is still a warm month, with an average temperature varying between 24.5°C (76.1°F) and 29.4°C (84.9°F).

Temperature

December's arrival registers an average high-temperature of a still moderately hot 29.4°C (84.9°F), closely aligning with the temperature of the previous month. Nighttime, during December, brings an average low of 24.5°C (76.1°F), a modest reduction from the day's peak.

Heat index

In December, the heat index is computed to be a very hot 35°C (95°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Glan, the average relative humidity in December is 78%.

Rainfall

In Glan, Philippines, in December, during 25 rainfall days, 88mm (3.46") of precipitation is typically accumulated. In Glan, during the entire year, the rain falls for 306.6 days and collects up to 1410mm (55.51") of precipitation.

Sea temperature

In Glan, the average seawater temperature in December is 29°C (84.2°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.

Daylight

December has the shortest days of the year, with an average of 11h and 48min of daylight.
On the first day of December in Glan, sunrise is at 5:33 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 5:35 pm PST.

Sunshine

The average sunshine in December is 8.7h.

UV index

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index in Glan. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 7 during December morphs into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.