Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Health & Activity Advice

⚠ Limit Outdoor Time

UV index is 8 today — very high. Limit sun exposure around midday, apply SPF 30+ every two hours, and seek shade when possible.

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.

Nearby Regional Outlook

Hanoi Weather Radar

Live precipitation · Cloud cover · Wind

View live radar →

Frequently Asked Questions

What is the hottest month in Hanoi?

The hottest month in Hanoi is typically June, with daytime highs averaging around 33.3°C (92°F), based on 10 years of historical weather data. Overnight lows during this period average near 26.6°C (80°F).

What is the coldest month in Hanoi?

The coldest month in Hanoi is typically January, with overnight lows averaging around 14.4°C (58°F) and daytime highs near 21.1°C (70°F), based on 10 years of historical weather data.

Does Hanoi have a rainy season?

Hanoi doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. August is the wettest month on average (about 418 mm), while December is the driest (about 33 mm).

What's the best time of year to visit Hanoi?

The best time to visit Hanoi is typically November to February, when daytime highs average a comfortable 22.7°C (73°F). Rainfall during this window averages around 52 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.

Is Hanoi's air quality safe right now?

As of the latest reading, Hanoi's air quality index (AQI) is 8, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.

Atmospheric Details

Wind

9 km/h

NNE · Light Breeze · Max 16 km/h

Humidity

71 %

High · feels muggy

UV Index

Very High

Visibility

16 km

Excellent

Pressure

1014 hPa

Stable

Dew Point

21°C

Very humid

Today vs Normal

30°C-1° below normal

The long-term average high for today is 31°C.

Air Quality

Unhealthy for Sensitive Groups

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Health & Activity Advice

⚠ Limit Outdoor Time

UV index is 8 today — very high. Limit sun exposure around midday, apply SPF 30+ every two hours, and seek shade when possible.

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.