National Diet Building 国会議事堂
The National Diet Building is a 65 m tall parliament building designed by the Ministry of the Treasury in a Neoclassical style. Made of steel reinforced concrete, it is located in Nagatachō and houses the National Diet, the Detached Library in the Diet, and the National Diet Post Office. It is one of the most looked-up sights in Japan on English Wikipedia.
Planning a visit
The driest months are December and January, with about 51 mm and 52 mm of rain. The warmest months are July and August, with daily highs of about 28 °C and 29 °C and daily lows of about 22 °C and 24 °C. The coldest months are January and February, with daily lows of 0 °C and 1 °C. The rainiest period is from June to October, with September seeing about 217 mm and October seeing about 200 mm. In June, there are about 16 rainy days, while in December there are about 6 rainy days.
The building is 5 km from Tokyo and 15 km from Tokyo Haneda International Airport. Nearby sights include the Tokyo Imperial Palace (1 km), Akasaka, Tokyo (1.1 km), Roppongi (1.9 km), Tokyo Tower (1.9 km), and Ginza (1.9 km).
Weather by month
The warmest month is August, with an average high of 29 °C. The wettest is September, with about 217 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 8 | 9 | 12 | 17 | 21 | 24 | 28 | 29 | 26 | 21 | 16 | 11 |
| Average low, °C | 0 | 1 | 4 | 10 | 15 | 18 | 22 | 24 | 20 | 14 | 9 | 3 |
| Rainfall, mm | 52 | 57 | 114 | 126 | 136 | 168 | 155 | 168 | 217 | 200 | 93 | 51 |
| Rainy days | 5 | 7 | 12 | 12 | 13 | 16 | 18 | 18 | 18 | 14 | 11 | 7 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
