When planning a visit to Yamagata in Japan, it helps to know that temperatures typically range from 3°C (37°F) in January up to 28°C (82°F) during the peak of August. Our detailed climate overview is based on data from Zao Onsen, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The weather in Yamagata during May, June, July and September is comfortably warm, with average temperatures ranging from 20°C (68°F) to 27°C (81°F).
The coldest months are usually in January, February, March and December.
When it comes to rainfall, Yamagata sees significant variations throughout the year. July tends to be the wettest, receiving 191 mm (7.5 in) of rain, while November is much drier with just 85 mm (3.3 in).
April is the sunniest period, with ideal conditions for exploring the region and all it has to offer.
