Noi Bai Temperature by Month

Noi Bai, Ha Noi Municipality, Vietnam has an average annual maximum temperature of 29°C (84°F), ranging from 21°C (70°F) in January to 35°C (95°F) in June. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Depending on the time of the year, temperatures range from very warm to pleasant in Noi Bai. At night, minimum temperatures range from 27°C (81°F) in June to 14°C (57°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Noi Bai by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. June, the city's warmest month, gets 171 hours of sunshine.

The chart below shows the average temperature throughout the year:

Noi Bai's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Noi Bai, January is the coolest month, with average highs of 21°C (70°F) and humidity around 81%, considered very high. In June, the warmest month, temperatures average 35°C (95°F) with 83% humidity, conditions that feel very high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Noi Bai this rarely lasts long on the ground.

For more on Noi Bai's weather, including monthly rainfall, sunshine hours, and humidity, visit our Noi Bai climate page.