In brief
In April in Nha Trang the sea is mostly calm: on 93% of days the highest wave of the day is 1 m or less. Rain of 5 mm or more falls on about 8% of days (2.0 mm a day on average), with about 8.6 hours of sun a day. Daytime 31.2°C, night 25.2°C, sea temperature about 27.6°C. Ranked by share of calm days, April is number 6 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 6 of 12 · 5 years
Waves (daily maximum)
0.6 m
average · 5 years
Rainy days
8 %
days with 5 mm or more of rain · average 2.0 mm/day · 26 years
Temperature
31° by day
night 25°C · sea 27.6°C · sun 8.6 h/day
Early, mid and late April
early April (1-10): calm sea 83% of days, rain of 5 mm+ 9%; mid April (11-20): calm sea 97% of days, rain of 5 mm+ 6%; late April (21-30): calm sea 99% of days, rain of 5 mm+ 8%.
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 April?
According to the Open-Meteo Marine model (5 years), in April the highest wave of the day is 1 m or less on 93% of days; the average daily maximum wave height is 0.59 m. Summary of the statistics: the sea is mostly calm. Ranked by share of calm days, April is number 6 of 12. These are statistics from past years, not a forecast.
Does it rain in Nha Trang in April?
According to the Nha Trang weather station (26 years), rain of 5 mm or more falls on about 8% of days in April, with 2.0 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 April?
Sea surface temperature from the Open-Meteo Marine model (5 years) averages about 27.6°C.
How hot is Nha Trang in April?
According to the Nha Trang weather station (26 years), daytime highs average 31.2°C and nights 25.2°C, with about 8.6 hours of sun a day.
What is the weather like in late April in Nha Trang?
By part of the month: early April (1-10): calm sea 83% of days, rain of 5 mm+ 9%; mid April (11-20): calm sea 97% of days, rain of 5 mm+ 6%; late April (21-30): calm sea 99% of days, rain of 5 mm+ 8%. Statistics for 5 years (sea) and 26 years (rain), not a forecast.
Is April a good time to go to Nha Trang?
It depends on what you plan. For the beach: calm sea on 93% of days (number 6 of 12 months for calm seas, 1 = calmest). Rain of 5 mm+ on 8% of days (number 10 of 12 for rainy days, 1 = rainiest), water 27.6°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.