In brief
In December in Nha Trang waves above 1 m are common: on 19% of days the highest wave of the day is 1 m or less. Rain of 5 mm or more falls on about 24% of days (8.2 mm a day on average), with about 4.4 hours of sun a day. Daytime 27.5°C, night 22.9°C, sea temperature about 26.2°C. Ranked by share of calm days, December is number 12 of 12.
This is reference statistics from past years, not a forecast or official data. For the coming days, see the “Nha Trang Now” page and the Vietnam national hydrometeorological service (nchmf.gov.vn).
Calm sea
daily wave ≤1 m; ranked 12 of 12 · 5 years
Waves (daily maximum)
1.3 m
average · 5 years
Rainy days
24 %
days with 5 mm or more of rain · average 8.2 mm/day · 25 years
Temperature
28° by day
night 23°C · sea 26.2°C · sun 4.4 h/day
Early, mid and late December
early December (1-10): calm sea 21% of days, rain of 5 mm+ 29%; mid December (11-20): calm sea 19% of days, rain of 5 mm+ 24%; late December (21-31): calm sea 19% of days, rain of 5 mm+ 18%.
This month compared with the others
My travel dates
Choose your arrival and departure - we show how many days of calm sea there usually are on those dates. If your dates are within the next 16 days, we add the real forecast.
Frequently asked questions
What is the sea like in Nha Trang in December?
According to the Open-Meteo Marine model (5 years), in December the highest wave of the day is 1 m or less on 19% of days; the average daily maximum wave height is 1.25 m. Summary of the statistics: waves above 1 m are common. Ranked by share of calm days, December is number 12 of 12. These are statistics from past years, not a forecast.
Does it rain in Nha Trang in December?
According to the Nha Trang weather station (25 years), rain of 5 mm or more falls on about 24% of days in December, with 8.2 mm of rain a day on average. These are statistics from past years, not a forecast.
How warm is the sea in Nha Trang in December?
Sea surface temperature from the Open-Meteo Marine model (5 years) averages about 26.2°C.
How hot is Nha Trang in December?
According to the Nha Trang weather station (25 years), daytime highs average 27.5°C and nights 22.9°C, with about 4.4 hours of sun a day.
What is the weather like in late December in Nha Trang?
By part of the month: early December (1-10): calm sea 21% of days, rain of 5 mm+ 29%; mid December (11-20): calm sea 19% of days, rain of 5 mm+ 24%; late December (21-31): calm sea 19% of days, rain of 5 mm+ 18%. Statistics for 5 years (sea) and 25 years (rain), not a forecast.
Is December a good time to go to Nha Trang?
It depends on what you plan. For the beach: calm sea on 19% of days (number 12 of 12 months for calm seas, 1 = calmest). Rain of 5 mm+ on 24% of days (number 3 of 12 for rainy days, 1 = rainiest), water 26.2°C. These are statistics from past years, not a forecast.
Rain and air temperature: Nha Trang weather station (WMO 48877, NOAA GHCN-Daily), 2000-2025, 26 years. Waves and sea temperature: Open-Meteo Marine model, data since 10.2021, 5 years. Sunshine hours: Vietnam standard QCVN 02:2022/BXD. A ±7-day window around each date, all years pooled.