When to visit Hanoi?
The decision rests on several criteria. Climate score, tourist crowds and feasible activities.
What you grasp in 5 seconds
Hanoi offers 7 comfortable months, without any month really to avoid. The gap stays moderate: 8.2 in November vs 4.5 in August.
What to check next
Your tolerance for crowds and budget. The best months concentrate tourist saturation and higher prices. Shoulder seasons offer a good compromise.
Next action
Scroll down to the detailed table to compare month by month, then open the page of the month that interests you.
How we calculate the score
The score combines 4 weighted criteria using 10 years of real climate data (ERA5).
Source : ERA5 · Open-Meteo · 10 years (2016–2025) · Full methodology →
Compare all 12 months
Month-by-month details: temperature, rain, sunshine, score and verdict.
| Month | T° min | T° max | Rain % | mm/day | Sun | Score | Verdict |
|---|---|---|---|---|---|---|---|
| ☀️ January → | 15°C | 22°C | 18% | 2.0mm | 2.2h | 7.5/10 | Best period |
| ☀️ February → | 15°C | 23°C | 19% | 1.8mm | 1.7h | 7.5/10 | Best period |
| ☀️ March → | 19°C | 26°C | 21% | 2.4mm | 1.5h | 7.7/10 | Best period |
| ☀️ April → | 22°C | 29°C | 24% | 3.5mm | 2.9h | 7.8/10 | Best period |
| 🌥️ May → | 25°C | 31°C | 36% | 7.0mm | 5.6h | 5.1/10 | Decent period |
| 🌥️ June → | 27°C | 33°C | 39% | 8.9mm | 5.6h | 4.6/10 | Decent period |
| 🌥️ July → | 26°C | 33°C | 44% | 10.2mm | 5.8h | 4.5/10 | Decent period |
| 🌥️ August → | 26°C | 32°C | 55% | 13.5mm | 5.3h | 4.5/10 | Decent period |
| 🌥️ September → | 25°C | 31°C | 47% | 11.4mm | 5.4h | 4.9/10 | Decent period |
| ☀️ October → | 22°C | 29°C | 29% | 6.9mm | 4.8h | 8.0/10 | Best period |
| ☀️ November → | 19°C | 26°C | 16% | 2.0mm | 4.4h | 8.2/10 | Best period |
| ☀️ December → | 15°C | 22°C | 12% | 1.1mm | 3.6h | 7.8/10 | Best period |
Hanoi week by week: your odds of avoiding rain
For each week of the year: in how many years out of 10 it was mostly dry (at most 2 rainy days), 2016 to 2025.
Safest week: Dec 10 to Dec 16, mostly dry in 10 years out of 10 (0.9 rainy day(s) on average).
Most exposed: Aug 13 to Aug 19, mostly dry in 1 years out of 10 (4.5 rainy days on average).
| Jan | Jan 19/1023°C | Jan 86/1021°C | Jan 157/1021°C | Jan 228/1020°C | Jan 2910/1021°C |
|---|---|---|---|---|---|
| Feb | Feb 57/1021°C | Feb 127/1023°C | Feb 1910/1022°C | Feb 268/1024°C | |
| Mar | Mar 510/1024°C | Mar 127/1025°C | Mar 197/1027°C | Mar 266/1026°C | |
| Apr | Apr 27/1028°C | Apr 98/1029°C | Apr 167/1030°C | Apr 235/1030°C | Apr 308/1031°C |
| May | May 74/1031°C | May 147/1032°C | May 214/1031°C | May 285/1033°C | |
| Jun | Jun 43/1033°C | Jun 114/1033°C | Jun 185/1034°C | Jun 256/1033°C | |
| Jul | Jul 23/1033°C | Jul 95/1033°C | Jul 164/1033°C | Jul 235/1033°C | Jul 302/1032°C |
| Aug | Aug 64/1033°C | Aug 131/1032°C | Aug 201/1032°C | Aug 276/1032°C | |
| Sep | Sep 34/1031°C | Sep 101/1031°C | Sep 176/1031°C | Sep 243/1030°C | |
| Oct | Oct 16/1030°C | Oct 87/1029°C | Oct 155/1028°C | Oct 228/1028°C | Oct 298/1026°C |
| Nov | Nov 57/1026°C | Nov 128/1027°C | Nov 198/1025°C | Nov 269/1024°C | |
| Dec | Dec 39/1022°C | Dec 1010/1022°C | Dec 179/1021°C | Dec 248/1021°C |
A specific date? The app computes the same figure day by day.
Annual temperatures — Hanoi
Min/max temperature curves observed over the past 10 years (ERA5). Shows climate stability and trend.
For your trip
A few angles depending on what kind of trip you are planning.
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
🎟️ Activities & tours · Hanoi
GetYourGuide selection · free cancellation
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a tropical stay.
Country · Vietnam
🌡️ Climate
🏝️ Tropical stay
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Global position + regional geographic context.