SeasonMapCon Dao (Con Son) weather by month
Vietnam
The best time to visit Con Dao (Con Son) is February to April — 92/100 in March, 30°C and 2 rainy days. The best season is the dry season, December to April (85/100 on average).
The worst month is October at 56/100 — hot, soaked, clean air. See October →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Vietnam →
Con Dao, month by month
Comfort score out of 100 for the kind of trip Con Dao is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 85 | A | 28°C | 5 d | 10 h | Busy | 1 |
| FebFebruary | 90 | S | 28°C | 2 d | 11 h | Peak | 1 |
| MarMarch | 92 | S | 30°C | 2 d | 11 h | Busy | 1 |
| AprApril | 88 | A | 31°C | 7 d | 11 h | Busy | 3 |
| MayMay | 76 | B | 32°C | 23 d | 11 h | Busy | 3 |
| JunJune | 73 | B | 31°C | 25 d | 10 h | Busy | 2 |
| JulJuly | 67 | C | 30°C | 26 d | 9 h | Busy | 1 |
| AugAugust | 69 | C | 30°C | 26 d | 10 h | Busy | 1 |
| SepSeptember | 58 | D | 30°C | 25 d | 9 h | Busy | 1 |
| OctOctober | 56 | D | 30°C | 28 d | 9 h | Quiet | 1 |
| NovNovember | 61 | C | 29°C | 22 d | 9 h | Quiet | — |
| DecDecember | 71 | B | 28°C | 13 d | 9 h | Shoulder | — |
What's on in Con Dao through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Con Dao in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 2 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet