Season guide · Ha Long Bay · Vietnam
Ha Long Bay in summer
June–August: weather, crowds, prices and the best things to do this time of year.
Updated By the AMZBooking editorial team
Photo: Schwede66, CC BY-SA 3.0
Quick answer
Hot, humid and the warmest water for swimming, but the wettest and busiest season, with typhoons that can stop all boats. Expect highs up to 32°C (90°F) and lows around 26°C (79°F), with about 50 rainy days across June–August.
Key facts
- Months
- June–August
- Temperatures
- 26°C (79°F) to 32°C (90°F)
- Rainy days in the season
- About 50
- Sea
- 29°C (84°F) to 30°C (86°F)
- Crowds
- Busy
- Hotel prices
- High
Weather in summer
| Month | High | Low | Rainy days | Daylight | Crowds |
|---|---|---|---|---|---|
| June | 31°C (88°F) | 26°C (79°F) | 15 | 13.4 h | 4/5 |
| July | 32°C (90°F) | 26°C (79°F) | 17 | 13.3 h | 5/5 |
| August | 31°C (88°F) | 26°C (79°F) | 18 | 12.8 h | 4/5 |
Compared with the rest of the year: average highs of 31°C (88°F) against a yearly 26°C (79°F), and 50 of the year's roughly 130 rainy days fall in these 3 months. Crowds rate 4/5 and hotel prices 4/5 on average.
Good choices for summer
Historic site · Cat Ba Island
Hospital Cave
Combine it with the national park on the same morning; a local guide at the entrance explains how the rooms were used.
- Time needed
- 45 minutes
- Cost
- Low cost
- History
- Rainy day
- Kids
Museum · Hon Gai
Quang Ninh Museum
A striking black-glass building on the Hon Gai waterfront that covers the bay's geology and marine life, the province's coal-mining history and the cultures of its ethnic communities.
- Time needed
- 1.5 hours
- Cost
- Low cost
- Rainy day
- History
- Kids
- Architecture
Nature · Bo Hon Island
Sung Sot Cave
Go with an early or late cruise departure; around midday the walkway inside becomes a slow-moving queue.
- Time needed
- 1 hour
- Cost
- Low cost
- Iconic
- Rainy day
- Kids
- Nature
Nature · Dau Go Island
Thien Cung Cave
The Heavenly Palace cave on Dau Go Island has a single large chamber of stalactites and flowstone lit in bright colours.
- Time needed
- 45 minutes
- Cost
- Low cost
- Rainy day
- Kids
- Nature
Day trips in summer
- Hai Phong (About 1–1.5 hours by car) — Northern Vietnam's main port city has French colonial streets around the Opera House, a busy food scene known for bánh đa cua crab noodles, and is a jumping-off point for Cat Ba by ferry from Ben Got.
- Quan Lan Island (About 1.5–2 hours by car and fast boat) — A long, low island in Bai Tu Long Bay with wide sandy beaches such as Minh Chau, an old communal house and fishing villages.
What to pack
- Light, breathable clothes, a sun hat and high-factor sunscreen
- A compact umbrella and waterproof shoes — rain is frequent
- Comfortable walking shoes
Other times of year
Questions travellers ask
+Is summer a good time to visit Ha Long Bay?
It is a trade-off: Hot, humid and the warmest water for swimming, but the wettest and busiest season, with typhoons that can stop all boats. The best months overall are April–May and October–November.
+What is the weather like in Ha Long Bay in summer?
Highs of up to 32°C (90°F) and lows around 26°C (79°F), with about 50 rainy days over the season.