Ha long Bay Weather in October
With daytime temperatures of 29°C (84°F) and nighttime lows of 24°C (75°F), October in Ha long Bay brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 136 mm (5.4 in) falls on average.
Rainfall in Ha long Bay in October
Typically, you can expect about 11 days of rain this month, with 136 mm (5.4 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Ha long Bay in October
October in Ha long Bay brings typical temperatures with highs around 29°C (84°F) and lows of 24°C (75°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Ha long Bay in October
Expect sunny days throughout the month, with an estimated 190 hours of sunshine. This makes it a pleasant time to visit Ha long Bay.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, November and December typically offer the best weather for Ha long Bay.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Ha long Bay's climate page.
Ha long Bay Temperature in October
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
38%
Precipitation
136 mm (5.4 in)
Rainy days
11 days
Humidity
79% *
Sunshine
190 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Ha long Bay typically stay consistent throughout October, with daily highs averaging around 29°C (84°F). Nights are warm, with lows typically ranging from 21°C (70°F) to 24°C (75°F).
Average temperatures in October
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Ha long Bay in October
Browse day-by-day weather records for Ha long Bay spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Ha long Bay historical weather extremes in October
Based on 32 years of weather observations (1993-2025), these are the most extreme conditions recorded in Ha long Bay.
- On October 5, 2025, temperatures climbed to 35°C (95°F), marking the warmest October day on record.
- Ha long Bay experienced its chilliest October day on October 15, 2000, reaching only 17°C (63°F).
- Ha long Bay registered its coldest October night on October 19, 2022, with temperatures dropping to 15°C (59°F).
Best Places in Vietnam in October
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Ha long Bay in October
Warm but pleasant conditions in Ha long Bay in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Ha long Bay in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Ha long Bay's climate page.
Temperature Rainfall Sunshine Humidity
See the full Ha long Bay climate overview or explore weather in Vietnam.
