December weather forecast
Manila, Philippines

December marks the onset of the cooler season in Manila with temperatures dipping to around 22.9°C (73.2°F), creating an inviting environment for sightseeing and explorations. It is a time when wind speeds slightly rise, bringing in fresh breezes throughout the city streets. Compared to November, the December climate is cooler, experiences relatively lesser rainfall, and shorter daylight duration. The shift from December's cool weather to January’s slightly warmer climate is a refreshing change for the city’s residents. The year comes to a close with Manila relishing a balanced climate - not too hot, not too cold, and minimal rainfall.

Temperature

The ushering in of December in Manila, Philippines, brings an average high-temperature of a warm 29.5°C (85.1°F), closely mirroring the 30.5°C (86.9°F) of November. During the month of December, the nighttime temperature in Manila falls to an average of 24.3°C (75.7°F).

Heat index

In December, the average heat index is appraised at a very hot 35°C (95°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in December in Manila is 77%.

Rainfall

In December, in Manila, Philippines, the rain falls for 11.5 days. Throughout December, 45mm (1.77") of precipitation is accumulated. In Manila, during the entire year, the rain falls for 185 days and collects up to 830mm (32.68") of precipitation.

Sea temperature

In Manila, in December, the average water temperature is 28.2°C (82.8°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.

Daylight

December has the shortest days of the year in Manila, Philippines, with an average of 11h and 18min of daylight.
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 is 6.6h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index in Manila. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! The reflection of sand and water increases the UV dose.