December weather forecastSanta Rosa, Philippines

Weather in December

The first month of the winter, December, is still a warm month in Santa Rosa, Philippines, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 28.8°C (83.8°F).

Temperature

Welcoming December, Santa Rosa notes an average high-temperature of a still warm 28.8°C (83.8°F), nearly consistent with November's 29.5°C (85.1°F). In Santa Rosa, the nightly December temperatures experience a slight descent from daily highs to an average low of 24.5°C (76.1°F).

Heat index

Throughout December, the heat index is estimated at a fiery hot 35°C (95°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The months with the highest humidity are January, July through September and December, with an average relative humidity of 82%.

Rainfall

In Santa Rosa, during December, the rain falls for 18.2 days and regularly aggregates up to 113mm (4.45") of precipitation. Throughout the year, there are 257 rainfall days, and 1537mm (60.51") of precipitation is accumulated.

Daylight

With an average of 11h and 18min of daylight, December has the shortest days of the year in Santa Rosa.
On the first day of December, sunrise is at 6:04 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 5:37 pm PST.

Sunshine

In December, the average sunshine is 7.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Santa Rosa. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during December translates into the following guidance:
Inhibit overexposure. Warding off sun damage is of utmost importance. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.