Best time to visit Haiphong
Vietnam · 20-year averages
Haiphong is a city of two halves. December scores 91 and July scores 41 — a 50-point swing, which is the difference between a holiday and an endurance test. The month you pick matters more here than almost anywhere. 5 of the twelve months sit within ten points of the best, so there is more than one right answer.
June is the warmest month at 31.2 °C and January the coolest at 20.7 °C — a 10.5 °C spread across the year. 131 days a year top 30 °C, more than a third of the calendar, so heat is the baseline here rather than a season.
There is a real wet season here. June to August carry the rain — up to 26 wet days in a month — while January, February, November and December drop as low as 5. That 21-day gap is the biggest single difference between a good month and a bad one in Haiphong, and it moves further than the temperature does.
The sea is comfortable for swimming in March to December — 29.9 °C at its warmest against 20.4 °C at its coldest. The water peaks a month or two after the air does, so the best swimming falls later in the year than the best weather. Daylight runs from 10.9 hours in winter to 13.4 in summer, enough to notice on a sightseeing itinerary.
The three strongest months are December, February, January. The one to think twice about is July. Each month below has its own page with rainfall reliability, extremes, daylight, sea temperature and crowd levels.
Haiphong month by month
| Month | High °C | Low °C | Rain days | Daylight h | Sea °C | Score | Verdict |
|---|---|---|---|---|---|---|---|
| January | 20.7 | 12.9 | 6 | 11 | 20.9 | 89 | Prime time |
| February | 22.7 | 14.9 | 6 | 11.5 | 20.4 | 90 | Prime time |
| March | 25.3 | 17.9 | 10 | 12 | 21.3 | 83 | Prime time |
| April | 28.7 | 21.5 | 10 | 12.6 | 23.7 | 72 | A good month |
| May | 30.8 | 24.9 | 18 | 13.1 | 27.2 | 44 | A hard month |
| June | 31.2 | 27 | 23 | 13.4 | 29.4 | 41 | A hard month |
| July | 31.2 | 27 | 24 | 13.3 | 29.8 | 41 | A hard month |
| August | 31 | 26.6 | 26 | 12.9 | 29.9 | 42 | A hard month |
| September | 30.6 | 25.2 | 19 | 12.3 | 29.4 | 46 | A hard month |
| October | 28.6 | 22.2 | 11 | 11.7 | 27.8 | 71 | A good month |
| November | 25.7 | 18.5 | 7 | 11.2 | 25.7 | 87 | Prime time |
| December | 21.7 | 13.9 | 5 | 10.9 | 23 | 91 | Prime time |
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