Average Rainy - Precipitation days in Hanoi

With 151 days and 1832 mm of annual rain, Hanoi has a moderate precipitation pattern. On this page, you can learn everything about the number of precipitation days.

Monthly Distribution of Rainy Days

August is usually the wettest with 338 mm of rain over 17 rainy days, whereas December averages 37 mm during its 5 rainy days.

Amsterdam Precipitation Days Compared World Wide

On average, Hanoi receives over 151 days of precipitation annually. For comparison, here is some data from popular tourist destinations around the world:

In Riyadh, Saudi Arabia, there are about 29 precipitation days annually, reflecting its dry desert environment.

Singapore, Singapore, records about 175 precipitation days per year, with rain spread fairly evenly throughout the year.

In Athens, Greece, it rains around 70 days in the year; therefore, it is one of the driest Mediterranean cities, mainly dominated by winter rainfall.

Chicago, USA, has 133 precipitation days annually, with a mix of rain and snow.

In Seoul, South Korea, the city experiences 106 precipitation days annually, with most rain falling during the summer monsoon season.

Perth, Australia, sees approximately 103 precipitation days annually, mostly during the winter months.

Rain Facts From Around the Globe

Let’s explore more fascinating precipitation records:

• Tutunendo, Colombia, gets about 340 days of rain every year, which arguably makes it the wettest place in the world.
• On Réunion Island, a tropical cyclone generated 1825 mm in just 24 hours.
• Singapore receives thunder on 167 days in the year and is considered one of the most thunderous cities in the world.
• The smallest drops that fall are called drizzle drops, and they have a diameter of 0.5 mm.
• Some heavy storms generate "diamond dust," which consists of very small ice crystals that float in the air.

For more detailed information about rainfall patterns in Hanoi, visit our Rainfall & Precipitation page.