Mild
Average highs are around 22°C, so days are mild rather than hot.
December verdict
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 4.3h per day, so this is not one of the brighter months. Rainfall averages 24mm, which is relatively low for holiday planning.

Monthly averages
Temp
22°C
Rain
24mm
Sun
4.3h
Sea
23°C
Weather score
59
Good
Mild
Average highs are around 22°C, so days are mild rather than hot.
Drier
Rainfall averages 24mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.3h per day, so this is not one of the brighter months.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Compare Hai Phong, Vietnam with nearby places by weather score, rain, sun, temperature, and swim conditions.
December22°C average high
December is on the cooler side of Hai Phong's year, useful if you prefer less intense daytime heat.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
December24mm average rain
December is one of Hai Phong's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December4.3 hours average sun
December sits close to Hai Phong's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to October
This stretch has the strongest sunshine in the monthly averages.
December23°C average sea
December is below Hai Phong's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaMay to October
Sea temperatures are usually near 27°C in this stretch, so swimming comfort is at its strongest.
December59 weather score
December sits close to Hai Phong's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsApril and October to November
These months have the strongest weather score in the monthly averages.