December weather forecast
Santo Rosario Kanluran, Philippines

The first month of the winter, December, is still a warm month in Santo Rosario Kanluran, Philippines, with an average temperature fluctuating between 29.4°C (84.9°F) and 24.5°C (76.1°F).

Temperature

December observes an average high-temperature of a moderately hot 29.4°C (84.9°F), marking an insignificant difference from November's 30.1°C (86.2°F). December nights register a minor temperature decline, steadying at a still warm 24.5°C (76.1°F).

Heat index

The heat index value for December is calculated to be a torrid 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Santo Rosario Kanluran, Philippines, the average relative humidity in December is 77%.

Rainfall

In Santo Rosario Kanluran, during December, the rain falls for 10.1 days and regularly aggregates up to 34mm (1.34") of precipitation. Throughout the year, in Santo Rosario Kanluran, there are 159.6 rainfall days, and 545mm (21.46") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 6:04 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 Santo Rosario Kanluran is 6.4h.

UV index

January and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.