Hanoi at a glance
- Best time
- Nov – Mar
- Warmest month
- Jun · 33°
- Sunshine a year
- 1,500 h
- Rain a year
- 1,721 mm
- Climate
- Subtropical
- Time zone
- UTC+7
- Elevation
- 10 m
Climate in Hanoi
Hanoi has a subtropical climate with warm summers and mild winters. June is the warmest month with average highs of 33 °C, while January is the coolest at 20 °C. With around 1,500 hours of sunshine a year, Hanoi is rather dull; October is the sunniest month with 5.4 hours a day.
Weather in October
Holiday weather in October
Good
Best time to visit: November – March
October is the peak of the typhoon season
What is the weather like in Hanoi in October?
In October, Hanoi is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 141 mm in total. On about 9 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Hanoi.
More details for October
- Daylight
- 11 h 42 min05:51 – 17:33
- UV index
- 9 · very highclear sky, noon (estimate)
- Muggy days
- 24 daysdew point 18 °C or more
- Wind
- 11 km/haverage daily peak
- Cloud cover
- 59 %on average
- Hot days
- 9 days30 °C or more
- Time zone
- UTC+7Asia/Bangkok
How the score comes together
- Temperatureweight 50 %84 %
- Sunshineweight 20 %40 %
- Few rainy daysweight 30 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Sunshine hours in Hanoi
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 5.4 of 11.7 hours of daylight in Hanoi, 46 % of the day.
Sunshine hours count the time with bright, direct sunshine (WMO definition, estimated from model data); daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Hanoi: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Hanoi has about 12 rainy days with 141 mm of rain in total.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 72 | 20° | 14° | 2.4 h | 8 | 39 |
| FebruaryFeb | 73 | 22° | 15° | 2.2 h | 7 | 31 |
| MarchMar | 68 | 25° | 18° | 2.4 h | 10 | 54 |
| AprilApr | 56 | 29° | 22° | 3.8 h | 11 | 104 |
| MayMay | 33 | 31° | 24° | 5.0 h | 17 | 233 |
| JuneJun | 21 | 33° | 26° | 5.0 h | 18 | 220 |
| JulyJul | 23 | 32° | 26° | 5.1 h | 21 | 251 |
| AugustAug | 27 | 32° | 26° | 4.6 h | 22 | 316 |
| SeptemberSep | 35 | 30° | 24° | 5.0 h | 19 | 246 |
| OctoberOct | 62 | 28° | 22° | 5.4 h | 12 | 141 |
| NovemberNov | 79 | 25° | 18° | 4.7 h | 7 | 56 |
| DecemberDec | 78 | 21° | 14° | 3.7 h | 6 | 31 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)
21.02° N, 105.84° E · 10 m · Asia/Bangkok
Best time to visit Hanoi
The best time to visit Hanoi is from November to March. For sightseeing, day trips and hiking, conditions are most comfortable from November to March. Rain is most frequent from May to October; the wettest month is August with 316 mm.
Find your perfect month
Tell us what you like and we rate every month in Hanoi for you.
Your best months: February, November – December
Based on the climate averages; tap a month to see its details.
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Nov – Mar
15–28 °C and not too much rain
Rainy months
May – Oct
12 or more rainy days
Hanoi month by month
The typical weather for every month at a glance.
72January20° · 2 h
In January, Hanoi is mild: daytime highs average 20 °C, and nights cool down to about 14 °C. The sun is scarce, with only about 2 hours a day. Rain falls on about 8 days, adding up to 39 mm. All in all, January is a good month for a holiday in Hanoi.
Hanoi in January73February22° · 2 h
In February, Hanoi is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sun is scarce, with only about 2 hours a day. Rain falls on about 7 days, adding up to 31 mm. All in all, February is a good month for a holiday in Hanoi.
Hanoi in February68March25° · 2 h
In March, Hanoi is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sun is scarce, with only about 2 hours a day. Rain is frequent, with about 10 rainy days and 54 mm in total. The air is often humid and muggy. All in all, March is a good month for a holiday in Hanoi.
Hanoi in March56April29° · 4 h
In April, Hanoi is hot: daytime highs average 29 °C, and even at night it stays warm at around 22 °C. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 11 rainy days and 104 mm in total. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a so-so month for a holiday in Hanoi.
Hanoi in April33May31° · 5 h
In May, Hanoi is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. Expect around 5 hours of sunshine a day. It rains often – on about 17 days, adding up to 233 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is not an ideal month for a holiday in Hanoi.
Hanoi in May21June33° · 5 h
In June, Hanoi is hot: daytime highs average 33 °C, and even at night it stays warm at around 26 °C. Expect around 5 hours of sunshine a day. It rains often – on about 18 days, adding up to 220 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is not an ideal month for a holiday in Hanoi.
Hanoi in June23July32° · 5 h
In July, Hanoi is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. Expect around 5 hours of sunshine a day. It rains often – on about 21 days, adding up to 251 mm. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, July is not an ideal month for a holiday in Hanoi.
Hanoi in July27August32° · 5 h
In August, Hanoi is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. Expect around 5 hours of sunshine a day. It rains often – on about 22 days, adding up to 316 mm. On about 24 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Hanoi.
Hanoi in August35September30° · 5 h
In September, Hanoi is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. Expect around 5 hours of sunshine a day. It rains often – on about 19 days, adding up to 246 mm. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Hanoi.
Hanoi in September62October28° · 5 h
In October, Hanoi is hot: daytime highs average 28 °C, and even at night it stays warm at around 22 °C. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 141 mm in total. On about 9 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is a good month for a holiday in Hanoi.
Hanoi in October79November25° · 5 h
In November, Hanoi is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. Expect around 5 hours of sunshine a day. Rain falls on about 7 days, adding up to 56 mm. All in all, November is a good month for a holiday in Hanoi.
Hanoi in November78December21° · 4 h
In December, Hanoi is mild: daytime highs average 21 °C, and nights cool down to about 14 °C. The sun is scarce, with only about 4 hours a day. Rain falls on about 6 days, adding up to 31 mm. All in all, December is a good month for a holiday in Hanoi.
Hanoi in DecemberPlanning a trip to Hanoi
Getting there
Flying from
- Nonstop flight
- about 11 h 40 min
- Distance
- 9,260 km
- Time zone
- UTC+7
Most routes need a change of planes, which adds time.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Storm season
Hanoi lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM); not a forecast.
Frequently asked questions about Hanoi
When is the best time to visit Hanoi?
The best time to visit Hanoi is from November to March. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in Hanoi?
June is the warmest month, with average highs of 33 °C and nights around 26 °C. January is the coolest month at 20 °C.
When does it rain most in Hanoi?
Rain is most frequent from May to October; the wettest month is August with 316 mm. The driest month is December with 31 mm.
How many hours of sunshine does Hanoi get?
Hanoi gets around 1,500 hours of sunshine a year. The sunniest month is October with 5.4 hours a day; in February there are 2.2 hours a day.
What time zone is Hanoi in?
Hanoi uses the time zone Asia/Bangkok, at UTC+7 all year.
How long is the flight from London to Hanoi?
A nonstop flight from London to Hanoi takes about 11 h 40 min, for a straight-line distance of about 9,260 km. Most routes need a change of planes, which adds time.
When is typhoon season in Hanoi?
Hanoi lies in an area that Pacific typhoons can reach. The typhoon season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Near Hanoi
Other destinations close by.