Kushiro, Hokkaido Weather by Month and Climate Averages

How much rain does Kushiro get?

Kushiro gets 1036 mm of precipitation in an average year, spread over about 99 days with measurable rain. That is fewer rainy days than 78% of Japan.

August is the wettest month, with 136 mm. January is the driest, with 38 mm. July has the most rainy days, about 11.

The longest dry spell in the last five years lasted 8 days, to May 22, 2022.

Kushiro weather by month

Kushiro weather in January

In January, Kushiro averages a high of -1°C and a low of -12°C. It gets 38 mm of precipitation over about 6 rainy days. The sun is out about 55% of daylight hours. The January record high is 7°C (1980) and the record low is -24°C (1985).

Kushiro weather in February

In February, Kushiro averages a high of 0°C and a low of -11°C. It gets 45 mm of precipitation over about 6 rainy days. The sun is out about 50% of daylight hours. The February record high is 8°C (1989) and the record low is -24°C (1977).

Kushiro weather in March

In March, Kushiro averages a high of 3°C and a low of -6°C. It gets 68 mm of precipitation over about 7 rainy days. The sun is out about 46% of daylight hours. The March record high is 16°C (2015) and the record low is -21°C (1977).

Kushiro weather in April

In April, Kushiro averages a high of 8°C and a low of 0°C. It gets 72 mm of precipitation over about 9 rainy days. The sun is out about 41% of daylight hours. The April record high is 23°C (1983) and the record low is -11°C (1984).

Kushiro weather in May

In May, Kushiro averages a high of 13°C and a low of 4°C. It gets 110 mm of precipitation over about 10 rainy days. The sun is out about 33% of daylight hours. The May record high is 26°C (2000) and the record low is -4°C (2001).

Kushiro weather in June

In June, Kushiro averages a high of 16°C and a low of 9°C. It gets 109 mm of precipitation over about 10 rainy days. The sun is out about 25% of daylight hours. The June record high is 32°C (2010) and the record low is -1°C (1985).

Kushiro weather in July

In July, Kushiro averages a high of 19°C and a low of 13°C. It gets 114 mm of precipitation over about 11 rainy days. The sun is out about 20% of daylight hours. The July record high is 33°C (2022) and the record low is 5°C (1979). July is one of the most comfortable months to visit.

Kushiro weather in August

In August, Kushiro averages a high of 22°C and a low of 16°C. It gets 136 mm of precipitation over about 11 rainy days. The sun is out about 20% of daylight hours. The August record high is 31°C (1984) and the record low is 7°C (1971).

Kushiro weather in September

In September, Kushiro averages a high of 20°C and a low of 12°C. It gets 133 mm of precipitation over about 10 rainy days. The sun is out about 32% of daylight hours. The September record high is 29°C (2010) and the record low is 2°C (1976). September is one of the most comfortable months to visit.

Kushiro weather in October

In October, Kushiro averages a high of 15°C and a low of 5°C. It gets 100 mm of precipitation over about 7 rainy days. The sun is out about 46% of daylight hours. The October record high is 23°C (2012) and the record low is -5°C (1970).

Kushiro weather in November

In November, Kushiro averages a high of 8°C and a low of -1°C. It gets 55 mm of precipitation over about 7 rainy days. The sun is out about 54% of daylight hours. The November record high is 17°C (1971) and the record low is -12°C (2016).

Kushiro weather in December

In December, Kushiro averages a high of 2°C and a low of -8°C. It gets 57 mm of precipitation over about 6 rainy days. The sun is out about 65% of daylight hours. The December record high is 12°C (2010) and the record low is -20°C (1974).

Sunshine, humidity and wind in Kushiro

December is the sunniest month in Kushiro, with sunshine about 65% of daylight hours. July is the cloudiest, at 20%. Over the year the sun shines about 41% of daylight hours. Kushiro is sunnier than 67% of Japan.

Humidity peaks in July at 90% and is lowest in December at 63%.

First and last freeze in Kushiro

The first fall freeze in Kushiro typically comes around October 22, and the last spring freeze around May 1. That leaves a frost-free growing season of about 174 days.

Kushiro weather records

The hottest temperature on record at the Kushiro station is 33°C, on July 31, 2022. The coldest is -24°C, on February 12, 1977.

The wettest day on record brought 181 mm of rain, on September 18, 2021.

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

The best time to visit Kushiro

The most comfortable time to visit is typically July and September, when daytime highs sit near 20°C.

Winter (December–February) is cold, with average highs around 1°C and lows near -10°C.

Spring (March–May) is chilly, with average highs around 8°C and lows near 0°C.

Summer (June–August) is mild, with average highs around 19°C and lows near 13°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 15°C and lows near 5°C.

Kushiro climate questions

How much rain does Kushiro get?

Kushiro gets 1036 mm of precipitation in an average year, over about 99 rainy days.

What is the wettest month in Kushiro?

August is the wettest month in Kushiro, with 136 mm. January is the driest, with 38 mm.

How many rainy days does Kushiro have a year?

Kushiro has about 99 days with measurable rain in an average year. July has the most, about 11.

What is the hottest month in Kushiro?

August is the warmest month in Kushiro, with an average high of 22°C.

What is the coldest month in Kushiro?

January is the coldest month in Kushiro, with an average low of -12°C.

What is the record high temperature in Kushiro?

The record high at the Kushiro station is 33°C, set on July 31, 2022. The record low is -24°C, on February 12, 1977.

What is the sunniest month in Kushiro?

December is the sunniest month in Kushiro, with sunshine about 65% of daylight hours. July is the cloudiest.

When is the first frost in Kushiro?

The first fall freeze in Kushiro typically comes around October 22. The last spring freeze is around May 1.

What is the best time to visit Kushiro?

The most comfortable time to visit is typically July and September, when daytime highs sit near 20°C.