December weather forecast
Penghu, Taiwan

December rounds out the year with the coolest temperatures and least amount of rainfall, providing a crisp contrast to the island's typical climate. December receives the least rain throughout the year with a modest average of 20mm (0.79") over 11 days. The hours of daylight and sunshine decline, signifying the arrival of winter. Despite the decrease in air temperature, the sea remains reasonably warm. As December moves to January, an increment in temperatures along with extended daylight hours can be anticipated.

Temperature

A modest decline in the average high-temperature is seen during December, decreasing from a moderately hot 26°C (78.8°F) in November to an agreeable 22°C (71.6°F). Nighttime temperature in Penghu dips to a mean of 14°C (57.2°F) during December.

Rainfall

The month with the least rainfall in Penghu is December, when the rain falls for 11 days and typically collects 20mm (0.79") of precipitation.

Sea temperature

In December, the average sea temperature in Penghu is 22°C (71.6°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22°C (71.6°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

With an average of 10h and 42min of daylight, December has the shortest days of the year in Penghu.
On the first day of December in Penghu, sunrise is at 06:27 and sunset at 17:14. On the last day of the month, sunrise is at 06:43 and sunset at 17:26 CST.

Sunshine

In December, the average sunshine in Penghu is 5h.

UV index

With an average maximum UV index of 6, December is the month with the lowest UV index in Penghu. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.