January weather forecast
Hai Phong, Vietnam

Despite its location in the tropical zone, Hai Phong, Vietnam experiences moderate temperatures in January. While rainfall is not excessive this month, the city witnesses higher relative humidity, which contributes to a sensation of coolness. A notable change can be observed as January transitions into February, with both temperatures and rainfall levels showing a slight increase. The sea temperature of 19.6°C (67.3°F) offers a pleasant environment for water activities, though the UV index is high at eight. The beginning of the year in Hai Phong is punctuated by mild weather interspersed with bouts of rain, setting the stage for the approaching spring.

Temperature

January is the month when Hai Phong experiences its coldest temperatures, averaging a high of 19.7°C (67.5°F) and a low of 14.2°C (57.6°F).

Humidity

With an average relative humidity of 78%, January is the least humid month.

Rainfall

The month with the least rainfall in Hai Phong is January, when the rain falls for 5 days and typically collects 37mm (1.46") of precipitation.

Sea temperature

With an average sea temperature of 19.6°C (67.3°F), January is the month with the coldest seawater.
Note: For most people, swimming in water at 19.6°C (67.3°F) is not a pleasurable experience. Breathing control gets harder as the water temperature descends from 21°C (69.8°F) to 15°C (59°F).

Daylight

In January, the average length of the day is 11h and 2min.
On the first day of January, sunrise is at 06:29 and sunset at 17:23. On the last day of the month, sunrise is at 06:30 and sunset at 17:42 +07.

Sunshine

In Hai Phong, the average sunshine in January is 2.9h.

UV index

The average daily maximum UV index in January in Hai Phong is 8. A UV Index of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In January, a daily maximum UV index of 8 leads to the following instructions:
Refrain from exposing skin and eyes. Without protection, they can get damaged rapidly. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.