Iwate Weather by Month — Temperature & Rainfall Guide

Iwate is a region in Japan. Many people wonder what the weather conditions are in Iwate over the year. What is the best time to visit Iwate?

This page shows the average weather conditions by month in Iwate over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Iwate is generally less favorable. January is a winter month. The temperatures range from very low in Hachimantai with 0°C (32°F) to low in Ichinoseki with 5°C (41°F). On average, this month is one of the coldest months of the year in Iwate. So be prepared and make sure to dress up warm.

Find more detailed climate information for Iwate in January here.

In February the weather in Iwate is generally less favorable. February is a winter month. The temperatures range from very low in Morioka with 1°C (34°F) to low in Ichinoseki with 6°C (43°F). It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Iwate in February here.

In March the weather in Iwate is generally less favorable. The average maximum daytime temperatures are low and range from 5°C (41°F) in Morioka to 10°C (50°F) in Ichinoseki.

Find more detailed climate information for Iwate in March here.

In April the weather in Iwate ranges from less favorable in Morioka to mixed in Hanamaki. The temperatures range from low in Miyako with 11°C (52°F) to moderate in Ichinoseki with 16°C (61°F).

Find more detailed climate information for Iwate in April here.

In May the weather in Iwate ranges from mixed in Kamaishi to very good in Ichinoseki. The temperatures range from moderate in Miyako with 15°C (59°F) to pleasant in Ichinoseki with 21°C (70°F).

Find more detailed climate information for Iwate in May here.

In June the weather in Iwate ranges from good in Kamaishi to very good in Morioka. The temperatures range from pleasant in Miyako with 18°C (64°F) to high in Ichinoseki with 24°C (75°F).

Find more detailed climate information for Iwate in June here.

In July the weather in Iwate ranges from good in Shizukuishi to very good in Morioka. July is a summer month. The average maximum daytime temperatures are high and range from 22°C (72°F) in Miyako to 27°C (81°F) in Ichinoseki.

Find more detailed climate information for Iwate in July here.

In August the weather in Iwate is generally very good. August is a summer month. The average maximum daytime temperatures are high and range from 24°C (75°F) in Miyako to 29°C (84°F) in Ichinoseki. On average, this month is one of the warmest months of the year in Iwate. So be prepared and make sure to dress lightly.

Find more detailed climate information for Iwate in August here.

In September the weather in Iwate ranges from mixed in Kamaishi to very good in Morioka. September is a summer month. The average maximum daytime temperatures are high and range from 22°C (72°F) in Miyako to 25°C (77°F) in Ichinoseki.

Find more detailed climate information for Iwate in September here.

In October the weather in Iwate ranges from mixed in Morioka to good in Hanamaki. The temperatures range from moderate in Morioka with 16°C (61°F) to pleasant in Ichinoseki with 19°C (66°F).

Find more detailed climate information for Iwate in October here.

In November the weather in Iwate ranges from less favorable in Morioka to mixed in Hanamaki. The temperatures range from low in Morioka with 10°C (50°F) to moderate in Ichinoseki with 13°C (55°F).

Find more detailed climate information for Iwate in November here.

In December the weather in Iwate is generally less favorable. December is a winter month. The average maximum daytime temperatures are low and range from 3°C (37°F) in Morioka to 7°C (45°F) in Kamaishi. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Iwate in December here.