Click on a day for an hourly weather forecast
The weather in Hanoi in August is very hot. The average temperatures are between 26°C and 33°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of August in Hanoi.
Hanoi should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in Hanoi in August 2025.
If you’re planning to visit Hanoi in the near future, we highly recommend that you review the 14 day weather forecast for Hanoi before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 21° / 15° | 3 | 28 | 0 | 43 mm | Good | Hanoi in January |
| February | 24° / 17° | 1 | 27 | 0 | 20 mm | Perfect | Hanoi in February |
| March | 27° / 20° | 2 | 29 | 0 | 40 mm | Perfect | Hanoi in March |
| April | 31° / 22° | 4 | 26 | 0 | 75 mm | Good | Hanoi in April |
| May | 34° / 25° | 11 | 20 | 0 | 166 mm | Bad | Hanoi in May |
| June | 36° / 27° | 12 | 18 | 0 | 204 mm | Bad | Hanoi in June |
| July | 35° / 27° | 16 | 15 | 0 | 267 mm | Bad | Hanoi in July |
| August | 33° / 26° | 16 | 15 | 0 | 284 mm | Ok | Hanoi in August |
| September | 32° / 25° | 12 | 18 | 0 | 207 mm | Ok | Hanoi in September |
| October | 30° / 22° | 5 | 26 | 0 | 106 mm | Good | Hanoi in October |
| November | 27° / 20° | 3 | 27 | 0 | 43 mm | Perfect | Hanoi in November |
| December | 23° / 16° | 2 | 29 | 0 | 29 mm | Perfect | Hanoi in December |