Hakodate, Hokkaido Weather by Month and Climate Averages

Hakodate, Hokkaido gets 1150 mm of precipitation a year over about 157 rainy days. August is the warmest month (average high 26°C) and January the coldest (average low -7°C).

Hakodate climate at a glance

Humid continental climate

Hakodate, Hokkaido has warm summers and cold winters. Daytime highs range from about 1°C in January to 26°C in August. August is usually the wettest month. The most comfortable time to visit is typically May to July and September to October, when daytime highs sit near 20°C.

How much rain does Hakodate get?

Hakodate gets 1150 mm of precipitation in an average year, spread over about 157 days with measurable rain. That is more rainy days than 83% of Japan.

August is the wettest month, with 146 mm. February is the driest, with 65 mm. December has the most rainy days, about 20.

The longest dry spell in the last five years lasted 11 days, to September 10, 2021.

Hakodate weather by month

Hakodate weather in January

In January, Hakodate averages a high of 1°C and a low of -7°C. It gets 76 mm of precipitation over about 19 rainy days. The sun is out about 35% of daylight hours. The January record high is 10°C (2009) and the record low is -16°C (1970).

Hakodate weather in February

In February, Hakodate averages a high of 2°C and a low of -6°C. It gets 65 mm of precipitation over about 17 rainy days. The sun is out about 34% of daylight hours. The February record high is 13°C (2026) and the record low is -16°C (1978).

Hakodate weather in March

In March, Hakodate averages a high of 6°C and a low of -3°C. It gets 66 mm of precipitation over about 16 rainy days. The sun is out about 43% of daylight hours. The March record high is 17°C (2018) and the record low is -12°C (1986).

Hakodate weather in April

In April, Hakodate averages a high of 12°C and a low of 2°C. It gets 65 mm of precipitation over about 10 rainy days. The sun is out about 50% of daylight hours. The April record high is 23°C (2015) and the record low is -8°C (1978).

Hakodate weather in May

In May, Hakodate averages a high of 17°C and a low of 8°C. It gets 84 mm of precipitation over about 10 rainy days. The sun is out about 40% of daylight hours. The May record high is 28°C (2019) and the record low is -2°C (1977). May is one of the most comfortable months to visit.

Hakodate weather in June

In June, Hakodate averages a high of 21°C and a low of 12°C. It gets 79 mm of precipitation over about 9 rainy days. The sun is out about 32% of daylight hours. The June record high is 29°C (1987) and the record low is 3°C (1983). June is one of the most comfortable months to visit.

Hakodate weather in July

In July, Hakodate averages a high of 24°C and a low of 17°C. It gets 112 mm of precipitation over about 10 rainy days. The sun is out about 28% of daylight hours. The July record high is 33°C (1976) and the record low is 7°C (1976). July is one of the most comfortable months to visit.

Hakodate weather in August

In August, Hakodate averages a high of 26°C and a low of 18°C. It gets 146 mm of precipitation over about 10 rainy days. The sun is out about 28% of daylight hours. The August record high is 36°C (2023) and the record low is 10°C (1979).

Hakodate weather in September

In September, Hakodate averages a high of 23°C and a low of 14°C. It gets 138 mm of precipitation over about 10 rainy days. The sun is out about 35% of daylight hours. The September record high is 33°C (2012) and the record low is 3°C (1980). September is one of the most comfortable months to visit.

Hakodate weather in October

In October, Hakodate averages a high of 17°C and a low of 7°C. It gets 97 mm of precipitation over about 11 rainy days. The sun is out about 46% of daylight hours. The October record high is 26°C (2025) and the record low is -3°C (1975). October is one of the most comfortable months to visit.

Hakodate weather in November

In November, Hakodate averages a high of 10°C and a low of 1°C. It gets 109 mm of precipitation over about 16 rainy days. The sun is out about 41% of daylight hours. The November record high is 21°C (2003) and the record low is -9°C (1974).

Hakodate weather in December

In December, Hakodate averages a high of 3°C and a low of -4°C. It gets 114 mm of precipitation over about 20 rainy days. The sun is out about 34% of daylight hours. The December record high is 16°C (1990) and the record low is -14°C (1974).

Sunshine, humidity and wind in Hakodate

April is the sunniest month in Hakodate, with sunshine about 50% of daylight hours. July is the cloudiest, at 28%. Over the year the sun shines about 37% of daylight hours. Hakodate is cloudier than 58% of Japan.

Humidity peaks in July at 90% and is lowest in November at 70%.

Hakodate has about 1 days a year above 32°C. Hakodate is cooler than 99% of Japan.

First and last freeze in Hakodate

The first fall freeze in Hakodate typically comes around November 8, and the last spring freeze around April 17. That leaves a frost-free growing season of about 205 days.

Hakodate weather records

The hottest temperature on record at the Hakodate station is 36°C, on August 10, 2023. The coldest is -16°C, on February 16, 1978.

The wettest day on record brought 270 mm of rain, on September 18, 1990.

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

The best time to visit Hakodate

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

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

Spring (March–May) is chilly, with average highs around 12°C and lows near 2°C.

Summer (June–August) is warm, with average highs around 24°C and lows near 16°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 17°C and lows near 7°C.

Monthly climate

MonthPrecipRain daysHumiditySunshineSea tempRecord highRecord low
January76 mm1971%35%-13°10°-16°
February65 mm1771%34%-14°13°-16°
March66 mm1672%43%-14°17°-12°
April65 mm1074%50%-13°23°-8°
May84 mm1082%40%-12°28°-2°
June79 mm988%32%-10°29°
July112 mm1090%28%-7°33°
August146 mm1087%28%-5°36°10°
September138 mm1078%35%-5°33°
October97 mm1171%46%-7°26°-3°
November109 mm1670%41%-9°21°-9°
December114 mm2070%34%-11°16°-14°

From ERA5 reanalysis. Sunshine is estimated from cloud cover.

Hakodate climate questions

How much rain does Hakodate get?

Hakodate gets 1150 mm of precipitation in an average year, over about 157 rainy days.

What is the wettest month in Hakodate?

August is the wettest month in Hakodate, with 146 mm. February is the driest, with 65 mm.

How many rainy days does Hakodate have a year?

Hakodate has about 157 days with measurable rain in an average year. December has the most, about 20.

What is the hottest month in Hakodate?

August is the warmest month in Hakodate, with an average high of 26°C.

What is the coldest month in Hakodate?

January is the coldest month in Hakodate, with an average low of -7°C.

What is the record high temperature in Hakodate?

The record high at the Hakodate station is 36°C, set on August 10, 2023. The record low is -16°C, on February 16, 1978.

What is the sunniest month in Hakodate?

April is the sunniest month in Hakodate, with sunshine about 50% of daylight hours. July is the cloudiest.

When is the first frost in Hakodate?

The first fall freeze in Hakodate typically comes around November 8. The last spring freeze is around April 17.

What is the best time to visit Hakodate?

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

Source: NOAA GHCN-Daily station HAKODATE (5 km away).

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Normals from NOAA GHCN-Daily station HAKODATE.