Kōriyama, Fukushima Weather by Month and Climate Averages

How much rain does Kōriyama get?

Kōriyama gets 1240 mm of precipitation in an average year, spread over about 105 days with measurable rain. That is fewer rainy days than 63% of Japan.

July is the wettest month, with 195 mm. February is the driest, with 32 mm. July has the most rainy days, about 14.

The longest dry spell in the last five years lasted 17 days, to February 4, 2022.

Kōriyama weather by month

Kōriyama weather in January

In January, Kōriyama averages a high of 5°C and a low of -4°C. It gets 38 mm of precipitation over about 6 rainy days. The sun is out about 40% of daylight hours. The January record high is 17°C (1988) and the record low is -13°C (1984).

Kōriyama weather in February

In February, Kōriyama averages a high of 6°C and a low of -3°C. It gets 32 mm of precipitation over about 6 rainy days. The sun is out about 40% of daylight hours. The February record high is 20°C (2021) and the record low is -12°C (1974).

Kōriyama weather in March

In March, Kōriyama averages a high of 10°C and a low of -1°C. It gets 65 mm of precipitation over about 8 rainy days. The sun is out about 37% of daylight hours. The March record high is 23°C (2018) and the record low is -12°C (1984).

Kōriyama weather in April

In April, Kōriyama averages a high of 16°C and a low of 4°C. It gets 90 mm of precipitation over about 8 rainy days. The sun is out about 39% of daylight hours. The April record high is 29°C (2018) and the record low is -6°C (1978).

Kōriyama weather in May

In May, Kōriyama averages a high of 22°C and a low of 9°C. It gets 105 mm of precipitation over about 9 rainy days. The sun is out about 33% of daylight hours. The May record high is 33°C (2019) and the record low is 1°C (1974). May is one of the most comfortable months to visit.

Kōriyama weather in June

In June, Kōriyama averages a high of 24°C and a low of 14°C. It gets 129 mm of precipitation over about 11 rainy days. The sun is out about 25% of daylight hours. The June record high is 34°C (1987) and the record low is 6°C (1970). June is one of the most comfortable months to visit.

Kōriyama weather in July

In July, Kōriyama averages a high of 28°C and a low of 19°C. It gets 195 mm of precipitation over about 14 rainy days. The sun is out about 21% of daylight hours. The July record high is 36°C (2024) and the record low is 7°C (1976).

Kōriyama weather in August

In August, Kōriyama averages a high of 29°C and a low of 20°C. It gets 159 mm of precipitation over about 12 rainy days. The sun is out about 29% of daylight hours. The August record high is 36°C (2015) and the record low is 11°C (1971).

Kōriyama weather in September

In September, Kōriyama averages a high of 25°C and a low of 16°C. It gets 185 mm of precipitation over about 11 rainy days. The sun is out about 22% of daylight hours. The September record high is 33°C (2000) and the record low is 5°C (1970). September is one of the most comfortable months to visit.

Kōriyama weather in October

In October, Kōriyama averages a high of 19°C and a low of 9°C. It gets 145 mm of precipitation over about 8 rainy days. The sun is out about 33% of daylight hours. The October record high is 28°C (2012) and the record low is -2°C (1970). October is one of the most comfortable months to visit.

Kōriyama weather in November

In November, Kōriyama averages a high of 13°C and a low of 3°C. It gets 57 mm of precipitation over about 6 rainy days. The sun is out about 46% of daylight hours. The November record high is 23°C (2023) and the record low is -6°C (1983).

Kōriyama weather in December

In December, Kōriyama averages a high of 8°C and a low of -2°C. It gets 40 mm of precipitation over about 6 rainy days. The sun is out about 44% of daylight hours. The December record high is 21°C (2004) and the record low is -12°C (1976).

Sunshine, humidity and wind in Kōriyama

November is the sunniest month in Kōriyama, with sunshine about 46% of daylight hours. July is the cloudiest, at 21%. Over the year the sun shines about 34% of daylight hours. Kōriyama is cloudier than 82% of Japan.

Humidity peaks in September at 82% and is lowest in April at 62%.

Kōriyama has about 10 days a year above 32°C. Kōriyama is cooler than 70% of Japan.

First and last freeze in Kōriyama

The first fall freeze in Kōriyama typically comes around November 12, and the last spring freeze around April 13. That leaves a frost-free growing season of about 213 days.

Kōriyama weather records

The hottest temperature on record at the Kōriyama station is 36°C, on July 17, 2012. The coldest is -13°C, on January 25, 1984.

The wettest day on record brought 301 mm of rain, on October 12, 2019.

39 all-time records have been set at the station since 1970.

The best time to visit Kōriyama

The most comfortable time to visit is typically May to June and September to October, when daytime highs sit near 22°C.

Winter (December–February) is chilly, with average highs around 6°C and lows near -3°C.

Spring (March–May) is mild, with average highs around 16°C and lows near 4°C.

Summer (June–August) is warm, with average highs around 27°C and lows near 18°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 19°C and lows near 9°C.

Kōriyama climate questions

How much rain does Kōriyama get?

Kōriyama gets 1240 mm of precipitation in an average year, over about 105 rainy days.

What is the wettest month in Kōriyama?

July is the wettest month in Kōriyama, with 195 mm. February is the driest, with 32 mm.

How many rainy days does Kōriyama have a year?

Kōriyama has about 105 days with measurable rain in an average year. July has the most, about 14.

What is the hottest month in Kōriyama?

August is the warmest month in Kōriyama, with an average high of 29°C.

What is the coldest month in Kōriyama?

January is the coldest month in Kōriyama, with an average low of -4°C.

What is the record high temperature in Kōriyama?

The record high at the Kōriyama station is 36°C, set on July 17, 2012. The record low is -13°C, on January 25, 1984.

What is the sunniest month in Kōriyama?

November is the sunniest month in Kōriyama, with sunshine about 46% of daylight hours. July is the cloudiest.

When is the first frost in Kōriyama?

The first fall freeze in Kōriyama typically comes around November 12. The last spring freeze is around April 13.

What is the best time to visit Kōriyama?

The most comfortable time to visit is typically May to June and September to October, when daytime highs sit near 22°C.