Nara Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows both the average monthly rainfall and the number of rainy days in Nara, Aichi, Japan. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let’s explore the details to provide you with a complete overview.

Nara has a notably wet climate with abundant precipitation, recording 1508 mm of rain/snowfall per year.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Significant seasonal changes in precipitation occur throughout the year. During the wet season, June receives substantial rainfall, averaging 211 mm of precipitation, recorded across 18 rainy days.

In contrast, the drier season, December brings less rainfall, with 66 mm over 15 rainy days.

June, the wettest month, has a maximum daytime temperature of 28°C. The city receives 156 hours of sunshine in this period. During the driest month December you can expect a temperature of 12°C. For more detailed insights into the city’s temperatures, visit our Nara Temperature page.

Annual Precipitation in Japan

The map below shows the annual precipitation across Japan. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Nara’s average annual precipitation is 1508 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm wide and 20 cm thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters fell during the winter of 1972.

For more detailed information about Nara’s weather, including sunshine hours, humidity levels, and temperature data, visit our Nara Climate page.