December weather forecast
Hoi An, Vietnam

December sees a significant drop in rainfall to 206mm (8.11"), signaling the end of the monsoon season. Despite the change in weather, temperatures remain fairly warm for the first part of winter. Longer daylight hours offer an opportunity to indulge in outdoor activities. As the year rounds off, Hoi An dons a festive mood making it an excellent time to experience Vietnamese culture.

Temperature

December commences in Hoi An, Vietnam, with an average high-temperature of a still moderately hot 26°C (78.8°F), showing little deviation from November's 27°C (80.6°F). December brings Hoi An a consistent average low-temperature of 20°C (68°F).

Rainfall

In December, in Hoi An, the rain falls for 5 days. Throughout December, 206mm (8.11") of precipitation is accumulated. Throughout the year, in Hoi An, there are 144 rainfall days, and 1929mm (75.94") of precipitation is accumulated.

Daylight

With an average of 11h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 05:58 and sunset at 17:13. On the last day of the month, sunrise is at 06:13 and sunset at 17:25 +07.

Sunshine

January through May and December, with an average of 7h of sunshine, are months with the most sunshine.

UV index

The months with the lowest UV index in Hoi An, Vietnam, are January, November and December, with an average maximum UV index of 9. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 9 suggests these recommendations:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.