Ichinoseki, Iwate Weather by Month and Climate Averages

How much rain does Ichinoseki get?

Ichinoseki gets 1378 mm of precipitation in an average year, spread over about 106 days with measurable rain. That is fewer rainy days than 61% of Japan.

September is the wettest month, with 186 mm. February is the driest, with 38 mm. July has the most rainy days, about 12.

The longest dry spell in the last five years lasted 22 days, to February 15, 2024.

Ichinoseki weather by month

Ichinoseki weather in January

In January, Ichinoseki averages a high of 5°C and a low of -3°C. It gets 49 mm of precipitation over about 8 rainy days. The sun is out about 41% of daylight hours. The January record high is 17°C (1988) and the record low is -11°C (1985).

Ichinoseki weather in February

In February, Ichinoseki averages a high of 6°C and a low of -3°C. It gets 38 mm of precipitation over about 7 rainy days. The sun is out about 42% of daylight hours. The February record high is 18°C (2016) and the record low is -12°C (1980).

Ichinoseki weather in March

In March, Ichinoseki averages a high of 9°C and a low of -1°C. It gets 83 mm of precipitation over about 8 rainy days. The sun is out about 39% of daylight hours. The March record high is 24°C (2018) and the record low is -8°C (1981).

Ichinoseki weather in April

In April, Ichinoseki averages a high of 15°C and a low of 4°C. It gets 108 mm of precipitation over about 8 rainy days. The sun is out about 42% of daylight hours. The April record high is 32°C (1998) and the record low is -4°C (1988).

Ichinoseki weather in May

In May, Ichinoseki averages a high of 19°C and a low of 9°C. It gets 138 mm of precipitation over about 9 rainy days. The sun is out about 35% of daylight hours. The May record high is 34°C (2019) and the record low is 0°C (1971). May is one of the most comfortable months to visit.

Ichinoseki weather in June

In June, Ichinoseki averages a high of 22°C and a low of 14°C. It gets 159 mm of precipitation over about 10 rainy days. The sun is out about 27% of daylight hours. The June record high is 34°C (2022) and the record low is 4°C (1985). June is one of the most comfortable months to visit.

Ichinoseki weather in July

In July, Ichinoseki averages a high of 26°C and a low of 18°C. It gets 167 mm of precipitation over about 12 rainy days. The sun is out about 21% of daylight hours. The July record high is 37°C (2023) and the record low is 5°C (1976). July is one of the most comfortable months to visit.

Ichinoseki weather in August

In August, Ichinoseki averages a high of 27°C and a low of 20°C. It gets 161 mm of precipitation over about 10 rainy days. The sun is out about 25% of daylight hours. The August record high is 37°C (2015) and the record low is 11°C (1991).

Ichinoseki weather in September

In September, Ichinoseki averages a high of 24°C and a low of 16°C. It gets 186 mm of precipitation over about 11 rainy days. The sun is out about 23% of daylight hours. The September record high is 34°C (1985) and the record low is 7°C (2010).

Ichinoseki weather in October

In October, Ichinoseki averages a high of 19°C and a low of 9°C. It gets 146 mm of precipitation over about 8 rainy days. The sun is out about 36% of daylight hours. The October record high is 28°C (2019) and the record low is -1°C (1983). October is one of the most comfortable months to visit.

Ichinoseki weather in November

In November, Ichinoseki averages a high of 13°C and a low of 3°C. It gets 84 mm of precipitation over about 8 rainy days. The sun is out about 45% of daylight hours. The November record high is 24°C (2023) and the record low is -4°C (1974).

Ichinoseki weather in December

In December, Ichinoseki averages a high of 7°C and a low of -1°C. It gets 59 mm of precipitation over about 8 rainy days. The sun is out about 41% of daylight hours. The December record high is 19°C (2025) and the record low is -9°C (1976).

Sunshine, humidity and wind in Ichinoseki

November is the sunniest month in Ichinoseki, with sunshine about 45% of daylight hours. July is the cloudiest, at 21%. Over the year the sun shines about 35% of daylight hours. Ichinoseki is cloudier than 80% of Japan.

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

Ichinoseki has about 5 days a year above 32°C. Ichinoseki is cooler than 82% of Japan.

First and last freeze in Ichinoseki

The first fall freeze in Ichinoseki typically comes around November 18, and the last spring freeze around April 9. That leaves a frost-free growing season of about 223 days.

Ichinoseki weather records

The hottest temperature on record at the Ichinoseki station is 37°C, on August 15, 2007. The coldest is -12°C, on February 17, 1980.

The wettest day on record brought 200 mm of rain, on May 16, 1977.

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

The best time to visit Ichinoseki

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

Winter (December–February) is chilly, with average highs around 6°C and lows near -2°C.

Spring (March–May) is mild, with average highs around 14°C and lows near 4°C.

Summer (June–August) is warm, with average highs around 25°C and lows near 17°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 19°C and lows near 10°C.

Ichinoseki climate questions

How much rain does Ichinoseki get?

Ichinoseki gets 1378 mm of precipitation in an average year, over about 106 rainy days.

What is the wettest month in Ichinoseki?

September is the wettest month in Ichinoseki, with 186 mm. February is the driest, with 38 mm.

How many rainy days does Ichinoseki have a year?

Ichinoseki has about 106 days with measurable rain in an average year. July has the most, about 12.

What is the hottest month in Ichinoseki?

August is the warmest month in Ichinoseki, with an average high of 27°C.

What is the coldest month in Ichinoseki?

January is the coldest month in Ichinoseki, with an average low of -3°C.

What is the record high temperature in Ichinoseki?

The record high at the Ichinoseki station is 37°C, set on August 15, 2007. The record low is -12°C, on February 17, 1980.

What is the sunniest month in Ichinoseki?

November is the sunniest month in Ichinoseki, with sunshine about 45% of daylight hours. July is the cloudiest.

When is the first frost in Ichinoseki?

The first fall freeze in Ichinoseki typically comes around November 18. The last spring freeze is around April 9.

What is the best time to visit Ichinoseki?

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