When to go · Co To Island
Co To Island in January
Avoid month. Listed as a month to avoid: Jul–Aug (typhoon risk, rough seas), Dec–Feb (cold, foggy).
Key facts
- Verdict
- Avoid
- Temperature
- 20°C (68°F)68°F (20°C) / 15°C (59°F)59°F (15°C)
- average high / low
- Rain days
- 8
- Crowds
- Medium
- Vietnam overall
- Prices
- Medium
- Vietnam overall
Verdict
Listed as a month to avoid: Jul–Aug (typhoon risk, rough seas), Dec–Feb (cold, foggy).
Is another month better than January?
January is rated avoid. These months rate higher:
Weather in January
- Co To IslandHighs around 20 °C (68 °F), lows around 15 °C (59 °F), rain on about 8 daysHighs around 68 °F (20 °C), lows around 59 °F (15 °C), rain on about 8 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Lunar New Year big impact
Tết — 6 Feb 2027 (lunar, moves yearly) · Vietnam
Trains, buses and flights sell out a week either side; many restaurants and shops close 3–7 days; prices up.
Crowds and prices
- Crowds · Vietnam overall
- Medium
- Prices · Vietnam overall
- Medium
Vietnam overall: South and centre dry; the north is cool and grey — a jacket for Hanoi, cold nights in Sa Pa.
Compare two months
Weather, crowds and prices for any two months in Co To Island, side by side.
Verdict
Jan: Avoid
Mar: Great (better)
Daytime high
Jan: 20 °C (68 °F)68 °F (20 °C)
Mar: 22 °C (72 °F)72 °F (22 °C)
Night low
Jan: 15 °C (59 °F)59 °F (15 °C)
Mar: 18 °C (64 °F)64 °F (18 °C)
Rain days
Jan: 8 (better)
Mar: 12
Crowds
Jan: Medium
Mar: Medium
Prices
Jan: Medium
Mar: Medium
Festivals listed
Jan: 1
Mar: 0
January: Listed as a month to avoid: Jul–Aug (typhoon risk, rough seas), Dec–Feb (cold, foggy).
March: Inside Co To Island's best window: Mar–Jun, Sep–Nov.
Co To Island: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.