Vietnam Weather in December

In the north: warm, mostly dry, highs 70°F (21°C). On the central coast: warm, very wet, highs 76°F (24°C), sea 77°F (25°C). In the south: hot, mostly dry, highs 87°F (31°C), sea 85°F (30°C). Rating: Excellent — best in the south. Driest in the north: about 1.4 in (35 mm) of rain over 7 rainy days. January rates Excellent.

Excellentwarm and dry, warm sea, in the south

Day high70–88°F (21–31°C)across regions

Sea77–86°F (25–30°C)at the beaches

Rainy days7–25per month

Climate normals checked September 29, 2026 · Source: Open-Meteo (ERA5) · How we calculate

Vietnam weather in December by region

Vietnam weather in December by region
Region	Day high	Night low	Sea	Rainy days	Rainfall	Humidity	Sun, h/day
NorthHanoi, Ha Long	70°F (21°C)	58°F (15°C)	70°F (21°C)	7	1.4 in (35 mm)	72%	5.3
Central coastDa Nang, Hoi An	76°F (24°C)	71°F (21°C)	77°F (25°C)	25	13.6 in (346 mm)	85%	5.5
SouthHo Chi Minh City, Phu Quoc	87°F (31°C)	74°F (23°C)	85°F (30°C)	10	2.5 in (63 mm)	77%	9.4

Flight time from the US

By distance, flying time to Vietnam is about 17 h from New York (JFK), 15 h 55 min from Los Angeles (LAX) and 15 h 15 min from San Francisco (SFO). Most trips from the US connect, so add at least 2 h for the layover. These are estimates, not schedules.

Flight time to Vietnam from US hubs →

Other months in Vietnam

Excellent Good Mixed Off-season

All months and temperature chart →

Vietnam in December: FAQ

What's the weather like in Vietnam in December?

In the north it is warm and mostly dry, with highs of 70°F (21°C). On the central coast it is warm and very wet, with highs of 76°F (24°C) and the sea at 77°F (25°C). In the south it is hot and mostly dry, with highs of 87°F (31°C) and the sea at 85°F (30°C).

Is December a good time to visit Vietnam?

We rate December as Excellent. Yes — best in the south, with highs of 87°F (31°C) and about 2.5 in (63 mm) of rain for the month.

Is December rainy season in Vietnam?

Driest in the north, with about 1.4 in (35 mm) of rain and 7 rainy days. On the central coast: 13.6 in (346 mm); In the south: 2.5 in (63 mm).

How does Vietnam in December compare to January?

January rates Excellent, December rates Excellent. In the best region, December brings highs of 87°F (31°C) and 2.5 in (63 mm) of rain; January brings 89°F (32°C) and 1.1 in (29 mm).

Where the data comes from

Air temperature, rainfall, humidity — ERA5 reanalysis (Copernicus / ECMWF) via Open-Meteo, averaged over 2015–2024. Each region uses one point: the resort or city in its caption.
Sea temperature — Open-Meteo Marine, average sea surface temperature for 2023–2026 (the source has no longer record yet).
Sunshine — sunshine duration from the same ERA5 reanalysis (Open-Meteo), average hours of sun per day for the month, 2015–2024.
Rainy days — days with at least 1 mm (0.04 in) of rain. Reanalysis picks up light rain more often than weather stations, so treat this as an upper bound.
Month rating — one rule for every destination, based on three factors: day highs (ideal 75–91°F / 24–33°C), monthly rainfall (ideal under 80 mm / 3.1 in) and, for beach regions, sea temperature (ideal 77°F / 25°C or warmer). All ideal means Excellent; one slightly weaker factor means Good. Mixed means heavy rain (150 mm / 5.9 in or more), highs above 97°F (36°C) or a sea below 70°F (21°C). Off-season means highs of 100°F (38°C) or more, cold below 54°F (12°C), over 350 mm (13.8 in) of rain, or several problems at once. A country's rating follows its best region, so check the regional table.

Checked September 29, 2026. Climate normals are refreshed yearly and the notes every 90 days. These are long-term averages, not a forecast: any given year can differ.