Hạ Long Weather in October
What's the weather like in Hạ Long (Quảng Ninh) in October 2025?
The climate in Hạ Long during October can be summarized as hot, humid and damp.
October is in the fall / autumn in Hạ Long and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (83°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 28.5°C 83.3°F |
|---|---|
| Nightly temperature | 21.3°C 70.3°F |
| Average temperature | 24.9°C 76.8°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 119 mm 4.7 ins |
| Rainy days | 11 days |
| Sea temperature | 27.9°C 82.2°F |
| Humidity | 80% |
| Windspeed | 6.5kph 4 mph |
On average October is the 6th wettest month of the year in Hạ Long with around 119mm 4.7 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
October temperatures in Hạ Long
October rainfall
October hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Hạ Long in October 2025.
Other monthly averages
Best places to visit in October
Hạ Long weather stats
| Hottest month: | July | 32.4°C 90.3°F |
|---|---|---|
| Driest month: | December | 24mm 0.9ins |
| Sunniest month: | July | 7.1hrs |
| Coldest month: | January | 19.3°C 66.7°F |
| Wettest month: | August | 312mm 12.3ins |
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