North Hanoi, Ha Long
Best months: November to April. Rainiest: May to September. Highs range from 70°F (21°C) to 92°F (34°C).
Best Time to Visit Vietnam
The best time to visit Vietnam: in the north, November to April; on the central coast, February to August; in the south, November to April. The wettest stretch on the central coast is October, November, December. It is hottest in the south in March, with highs of 94°F (34°C).
Climate normals checked September 29, 2026 · Source: Open-Meteo (ERA5) · How we calculate
Vietnam weather by month
Colour shows the month rating for the best region. Tap a month for details.
- Jan89°FJanuary: Excellent
- Feb92°FFebruary: Good
- Mar78°FMarch: Excellent
- Apr85°FApril: Excellent
- May89°FMay: Excellent
- Jun92°FJune: Good
- Jul91°FJuly: Good
- Aug91°FAugust: Good
- Sep87°FSeptember: Mixed
- Oct83°FOctober: Mixed
- Nov79°FNovember: Excellent
- Dec87°FDecember: Excellent
Excellent Good Mixed Off-season
Vietnam air and sea temperature by month
- North: air
- Central coast: air
- Central coast: sea
- South: air
- South: sea
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| North: air | 70 | 72 | 78 | 84 | 89 | 92 | 91 | 89 | 87 | 83 | 79 | 70 |
| Central coast: air | 75 | 76 | 81 | 85 | 89 | 92 | 91 | 91 | 87 | 83 | 80 | 76 |
| Central coast: sea | 75 | 75 | 76 | 79 | 83 | 87 | 87 | 88 | 87 | 84 | 81 | 77 |
| South: air | 89 | 92 | 94 | 94 | 91 | 89 | 87 | 88 | 87 | 87 | 87 | 87 |
| South: sea | 84 | 85 | 86 | 88 | 89 | 87 | 85 | 86 | 85 | 86 | 86 | 85 |
When to visit each region of Vietnam
Central coast Da Nang, Hoi An
Best months: February to August. Rainiest: September to December. Highs range from 75°F (24°C) to 92°F (34°C), sea 75–88°F (24–31°C).
South Ho Chi Minh City, Phu Quoc
Best months: November to April. Rainiest: May to October. Highs range from 87°F (30°C) to 94°F (34°C), sea 84–90°F (29–32°C).
Best time to visit Vietnam: FAQ
When is the best time to visit Vietnam?
The best time to visit Vietnam: in the north, November to April; on the central coast, February to August; in the south, November to April. The wettest stretch on the central coast is October, November, December. It is hottest in the south in March, with highs of 94°F (34°C).
What is Vietnam's rainy season?
Months with more than 200 mm (7.9 in) of rain: in the north, May to September; on the central coast, September to December; in the south, May to October. The wettest month on the central coast is October, with about 18.4 in (467 mm).
Is Vietnam hot all year?
Day highs in the north range from 70°F (21°C) to 92°F (34°C). The hottest month is March in the south, at 94°F (34°C).
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).
- 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.
