Weather in Haiphong in November
Vietnam · 20-year averages, November
Prime time. If you get to pick your dates, November is the one. Highs average 25.7 °C, lows 18.5 °C, and rain falls on 7 days — nothing in the month is working against you.
November ranks 4 of 12 in Haiphong: past the worst of the year but short of December, which is the month to book if the dates are open.
Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest November day reached 31.5 °C and the coldest night fell to 9.2 °C, and the wettest single day dropped 58 mm — roughly 114% of the month's rain in one day.
November is moderately variable: 2 mm in the driest year against 142 mm in the wettest, around an average of 51 mm. Roughly two Novembers in three land near that average, and the third does something else entirely.
Wind is light at 8.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 79%, high enough to notice on the warm days without dominating them.
How November sits in the year
The month is on the way down: 2.9 °C cooler than October, with December dropping another 4 °C. The first week and the last are not the same trip.
Daylight in November
November sits at the dark end of Haiphong's year — 11.2 hours of daylight against 13.4 at midsummer, losing 0.4 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
Sea temperature
The sea sits at about 25.7 °C in November — warm enough to stay in as long as you like. The sea peaks at 29.9 °C in August and bottoms out at 20.4 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
November in Haiphong versus nearby
If Haiphong is one option among several, the nearby comparison is worth making. Hanoi is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Thanh Hóa is close enough to be a coin toss — within a degree on temperature, 2 days more rain.
So: November is effectively as good as it gets here — 4 points behind December, which is inside the margin where the weather stops being the deciding factor and price starts being it.
Every month in Haiphong
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 20.7 | 12.9 | 6 | 39 | 79 | 11 | 20.9 | 89 |
| February | 22.7 | 14.9 | 6 | 25 | 81 | 11.5 | 20.4 | 90 |
| March | 25.3 | 17.9 | 10 | 50 | 82 | 12 | 21.3 | 83 |
| April | 28.7 | 21.5 | 10 | 69 | 82 | 12.6 | 23.7 | 72 |
| May | 30.8 | 24.9 | 18 | 168 | 84 | 13.1 | 27.2 | 44 |
| June | 31.2 | 27 | 23 | 213 | 86 | 13.4 | 29.4 | 41 |
| July | 31.2 | 27 | 24 | 302 | 86 | 13.3 | 29.8 | 41 |
| August | 31 | 26.6 | 26 | 338 | 86 | 12.9 | 29.9 | 42 |
| September | 30.6 | 25.2 | 19 | 240 | 83 | 12.3 | 29.4 | 46 |
| October | 28.6 | 22.2 | 11 | 122 | 80 | 11.7 | 27.8 | 71 |
| November | 25.7 | 18.5 | 7 | 51 | 79 | 11.2 | 25.7 | 87 |
| December | 21.7 | 13.9 | 5 | 27 | 76 | 10.9 | 23 | 91 |
See all twelve months in Haiphong, or where else to go in November.
Planning the rest of the trip
- Flight time to Haiphong how long you are actually in the air
- Haiphong time zone and the difference from home
- Days until your trip count down to the departure date