December weather forecast
Pinyahan, Philippines

The first month of the winter, December, is still a warm month in Pinyahan, Philippines, with an average temperature varying between 24.3°C (75.7°F) and 29.5°C (85.1°F).

Temperature

December's onset records an average high-temperature of a moderately hot 29.5°C (85.1°F), a near match to November's 30.5°C (86.9°F). An average nighttime temperature of 24.3°C (75.7°F) is witnessed in Pinyahan throughout December.

Heat index

The heat index value during December is evaluated at a fiery hot 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of 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. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In December, the average relative humidity in Pinyahan is 77%.

Rainfall

In December, the rain falls for 7.2 days. Throughout December, 14mm (0.55") of precipitation is accumulated. In Pinyahan, during the entire year, the rain falls for 154.1 days and collects up to 342mm (13.46") of precipitation.

Daylight

With an average of 11h and 18min of daylight, December has the shortest days of the year in Pinyahan.
On the first day of the month, sunrise is at 6:05 am and sunset at 5:24 pm. On the last day of December, sunrise is at 6:20 am and sunset at 5:37 pm PST.

Sunshine

In December, the average sunshine in Pinyahan is 6.6h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during December translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.