Hanoi Weather in January
During January, Hanoi experiences pleasant daytime temperatures of 21°C (70°F) and cooler nights around 15°C (59°F). As part of the winter season, some rainfall is to be expected.
Rainfall in Hanoi in January
This month experiences about 10 days of rain according to historical data, averaging 47 mm (1.9 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Hanoi in January
The excellent temperature in Hanoi in January makes it a solid month to visit, with 21°C (70°F) during the day and 15°C (59°F) at night. Experience the winter season in January. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 15°C (59°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This month is marked by slightly cooler temperatures, but the climate remains quite pleasant.
Sunshine in Hanoi in January
The area experiences limited sunny days, amounting to roughly 68 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Hanoi's climate page.
Hanoi Temperature in January
Min Temperature
15°C (59°F)
Max Temperature
21°C (70°F)
Chance of Rain
34%
Precipitation
47 mm (1.9 in)
Rainy days
10 days
Humidity
81%
Sunshine
68 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2026)
Based on our historical records, temperatures in Hanoi typically stay consistent throughout January, with daily highs averaging around 21°C (70°F). Nights are pleasant, with lows around 15°C (59°F).
Average temperatures in January
Daily Historical Precipitation
50-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Hanoi in January
Browse day-by-day weather records for Hanoi spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hanoi historical weather extremes in January
The extremes listed below come from historical weather data collected in Hanoi from 1993 through 2025.
- The hottest January day on record in Hanoi reached 32°C (90°F) (January 9, 1998).
- Hanoi experienced its chilliest January day on January 24, 2016, reaching only 8°C (46°F).
- The coldest night in January in Hanoi was on January 24, 2016, with a minimum of 6°C (43°F).
Best Places in Vietnam in January
Find out more about the weather in Vietnam and which places have the best travel conditions in this month. See all of Vietnam in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Hanoi in January
Pleasant temperatures in January mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. You can probably leave your sunglasses at home, because sunny days are pretty rare this month.What To Do in Hanoi in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Vietnam, check out our Hanoi's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hanoi climate overview or explore weather in Vietnam.
