December weather forecast
Guimbal, Philippines

The first month of the winter, December, is also a moderately hot month in Guimbal, Philippines, with temperature in the range of an average low of 25.6°C (78.1°F) and an average high of 29°C (84.2°F).

Temperature

December brings an average high-temperature of a still warm 29°C (84.2°F), showing a slight difference from November's 29.6°C (85.3°F). Guimbal records a consistent average nighttime temperature of 25.6°C (78.1°F) in December, slightly lower than the daytime high.

Heat index

During December, the heat index is evaluated at a sweltering 35°C (95°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

January, August, September, November and December, with an average relative humidity of 80%, are the most humid months in Guimbal.

Rainfall

In Guimbal, in December, during 14.4 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, there are 222 rainfall days, and 1184mm (46.61") of precipitation is accumulated.

Sea temperature

In Guimbal, the average seawater temperature in December is 28.1°C (82.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of December, sunrise is at 5:53 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 5:39 pm PST.

Sunshine

In Guimbal, the average sunshine in December is 7.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, an average UV index of 7 transforms into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Attention! UV radiation is markedly stronger with water and sand reflections.