December weather forecast
Surallah, Philippines

December, the first month of the winter in Surallah, is still a warm month, with an average temperature varying between 20.8°C (69.4°F) and 29.7°C (85.5°F).

Temperature

Surallah's average high-temperature marks a still moderately hot 29.7°C (85.5°F) with the advent of December, closely mirroring that of the preceding month. During December, Surallah's temperature averages to a pleasant 20.8°C (69.4°F) at night.

Heat index

The heat index for December is evaluated at a very hot 37°C (98.6°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. 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. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Surallah, in December, during 27.5 rainfall days, 165mm (6.5") of precipitation is typically accumulated. In Surallah, during the entire year, the rain falls for 338.7 days and collects up to 2709mm (106.65") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 48min of daylight.
On the first day of the month, sunrise is at 5:36 am and sunset at 5:23 pm. On the last day of December, sunrise is at 5:51 am and sunset at 5:36 pm PST.

Sunshine

In December, the average sunshine in Surallah, Philippines, is 8.3h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 in December translates into this advice:
Take precautions against overexposure. Protection against sun damage is needed. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.