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Halong Bay, Vietnam · Tropical

Halong Bay in June: go or not?

Mixed period. Halong Bay in June: 4.7/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 20.91°N · 107.18°E
⚡ This month's verdict
Why not
Halong Bay · June
4.7
27–31°
Temperature
50%
Rain
5h
Sun
🌴 Tropical☀️ High UV🌧️ Monsoon season
Photo : Vincent Guth via Unsplash
The month in detail

What to expect in June

June falls in the wet season in Halong Bay. Showers are often brief but intense. With 50% of rainy days, always have indoor alternatives planned.

June ranks 10 out of 12 months in Halong Bay. Compared to May: +4°F daytime, 13 pts more rainy days, −0.8h of sun per day.

This month's conditions

What it's like in June

UV index
8 · high
sunscreen and hat advised
Feels like
oppressive heat
26°
Sea
32°C
warm, ideal
Daylight
13.3h of daylight
Air quality
good
AQI 39
Compare

Is June the right month?

The best month in Halong Bay is October (8.6/10), 3.9 pts higher than June.

See October →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Halong Bay

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.

Country · Vietnam

🗣️LanguageVietnamese
💶CurrencyVietnamese Dong (₫)
🚗DrivingRight-hand
🛡️Safety ⓘSafe · 2/5
💰Cost of living ⓘVery cheap · 1/5

🌡️ Climate

🌍Climate typeTropical
📈Climate trend ⓘStable
🔥Hottest monthJune · 88°F
❄️Coolest monthJanuary · 68°F
🌧️Rainiest month ⓘAugust · 62%

🏝️ Tropical stay

🌞Dry season ⓘMay → Sep
🌧️Wet season ⓘDec → Mar
🌀Cyclones ⓘSeason Nov-Apr
Location

Where is Halong Bay ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Vietnam
Tropical climate with a 8.6 → 4.6 gap between best and worst month. 10 years of ERA5 data to choose by project.
20.91°N · 107.18°E
Questions

Frequently asked questions

What is the best time to visit Halong Bay?
November is the best month with 79°F highs, 68°F lows, 7.0h of sunshine and 14.0% rainy days. The months of November & October offer comparable conditions.
How many hours of sunshine does Halong Bay get in November?
Halong Bay averages 7.0 sunshine hours per day in November. It is the sunniest month with a climate score of 8.1/10.
What is the rainiest month in Halong Bay?
August is the most unfavourable month with August has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Halong Bay in November?
In November, overnight lows reach 68°F, while afternoon highs average 79°F.
Is Halong Bay good in winter?
In winter (December-February), Halong Bay scores 7.4/10 on average — Acceptable conditions for cultural visits.. The best month overall remains November with a score of 8.1/10.
When should you avoid Halong Bay?
August is the most difficult month to visit Halong Bay, with August has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Halong Bay in June?
In June, the sea averages 89°F in Halong Bay: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Halong Bay in June?
The average UV index reaches 8 in June in Halong Bay (high), with about 13.3h of daylight. Sunscreen and hat advised.