December weather forecast
Siay, Philippines

December, the first month of the winter in Siay, is also a moderately hot month, with an average temperature varying between 24.1°C (75.4°F) and 28.8°C (83.8°F).

Temperature

The average high-temperature for December is a still moderately hot 28.8°C (83.8°F), closely aligning with the temperature of the preceding month. A slight dip in temperature to a still moderately hot 24.1°C (75.4°F) marks the average nights in Siay during December.

Heat index

The average heat index in December is evaluated at a very hot 35°C (95°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Siay, in December, during 21.1 rainfall days, 88mm (3.46") of precipitation is typically accumulated. Throughout the year, there are 265.6 rainfall days, and 1186mm (46.69") of precipitation is accumulated.

Daylight

With an average of 11h and 42min of daylight, December has the shortest days of the year in Siay.
On the first day of the month, sunrise is at 5:46 am and sunset at 5:28 pm. On the last day of December, sunrise is at 6:01 am and sunset at 5:42 pm PST.

Sunshine

In Siay, the average sunshine in December is 7.8h.

UV index

January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, a daily UV index of 7 turns into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.