Can I drink the water from the washbasin in Japanese hotels directly?

Yes, tap water can reach the level of direct drinking even if it is not direct drinking water in Japan. But it's still cold.

Japan is located in the east of Eurasia and the northwest of the Pacific Ocean. Its territory consists of Hokkaido, Honshu, Shikoku, Kyushu and more than 7,200 other small islands, so it is also known as the "country of thousands of islands".

Japan has a land area of about 377,900 square kilometers. The eastern and southern parts of Japan are the endless Pacific Ocean, bordering the Sea of Japan and the East China Sea in the west, the Sea of Okhotsk in the north, and facing North Korea, South Korea, China, Russia, the Philippines and other countries across the sea. Hokkaido, Japan has one of the most famous fishing grounds in the world-Hokkaido Fishing Ground, which is formed by the confluence of Thousand Island Cold Current and Japanese Warm Current.

Japan is located in temperate and subtropical monsoon climate, with mild climate and distinct four seasons. The national latitude is 25, and the temperature difference between north and south is very significant.

The northeastern regions and plateaus of Hokkaido and Honshu belong to temperate zones, while most of the mainland and southern islands such as Okinawa belong to subtropical zones. In addition, Japan's geographical position makes it influenced by the intersection of monsoon and ocean current, so it has four distinct seasons and abundant precipitation.