December weather forecast
Hai Phong, Vietnam

December brings with it the chilly winds of winter, notifying the end of the year in Hai Phong. With a noted decrease in temperature, sea temperature, and rainfall, this month is significantly cooler and drier. Despite the decrease in daylight hours, the UV index drops to a low of seven. The lowest amount of rainfall is noted in December, bringing it down to 46mm (1.81"). Even as temperatures hover around the cooler range, the sun shines through offering bright and sunny days amidst the chilly winter breeze.

Temperature

December in Hai Phong brings a slight decrease in the average high-temperature, shifting from a moderately hot 25.5°C (77.9°F) in November to an agreeable 22.2°C (72°F). Hai Phong reports an average low-temperature of 15.3°C (59.5°F) during the nights of December.

Humidity

In December, the average relative humidity is 79%.

Rainfall

In Hai Phong, during December, the rain falls for 2.6 days and regularly aggregates up to 46mm (1.81") of precipitation. Throughout the year, there are 104.3 rainfall days, and 2209mm (86.97") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 21.8°C (71.2°F).
Note: For the majority of people, swimming in water at 21.8°C (71.2°F) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year, with an average of 10h and 54min of daylight.
On the first day of the month, sunrise is at 06:13 and sunset at 17:11. On the last day of December, sunrise is at 06:29 and sunset at 17:23 +07.

Sunshine

In Hai Phong, the average sunshine in December is 4.5h.

UV index

With an average maximum UV index of 7, December is the month with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Stay cautious! Sand and water reflections increase UV radiation potency.