Ōsaki, Miyagi Weather by Month and Climate Averages

How much rain does Ōsaki get?

Ōsaki gets 919 mm of precipitation in an average year, spread over about 81 days with measurable rain. That is fewer rainy days than 99% of Japan.

September is the wettest month, with 135 mm. February is the driest, with 25 mm. July has the most rainy days, about 10.

The longest dry spell in the last five years lasted 22 days, to January 13, 2023.

Ōsaki weather by month

Ōsaki weather in January

In January, Ōsaki averages a high of 5°C and a low of -3°C. It gets 31 mm of precipitation over about 5 rainy days. The sun is out about 44% of daylight hours. The January record high is 15°C (1973) and the record low is -11°C (2021).

Ōsaki weather in February

In February, Ōsaki averages a high of 6°C and a low of -3°C. It gets 25 mm of precipitation over about 5 rainy days. The sun is out about 45% of daylight hours. The February record high is 19°C (1993) and the record low is -11°C (1977).

Ōsaki weather in March

In March, Ōsaki averages a high of 9°C and a low of 0°C. It gets 55 mm of precipitation over about 6 rainy days. The sun is out about 41% of daylight hours. The March record high is 21°C (2021) and the record low is -8°C (1970).

Ōsaki weather in April

In April, Ōsaki averages a high of 14°C and a low of 5°C. It gets 69 mm of precipitation over about 7 rainy days. The sun is out about 43% of daylight hours. The April record high is 28°C (2018) and the record low is -3°C (1981).

Ōsaki weather in May

In May, Ōsaki averages a high of 19°C and a low of 11°C. It gets 83 mm of precipitation over about 7 rainy days. The sun is out about 36% of daylight hours. The May record high is 31°C (2016) and the record low is 1°C (1992). May is one of the most comfortable months to visit.

Ōsaki weather in June

In June, Ōsaki averages a high of 22°C and a low of 16°C. It gets 92 mm of precipitation over about 8 rainy days. The sun is out about 28% of daylight hours. The June record high is 34°C (2022) and the record low is 7°C (2010). June is one of the most comfortable months to visit.

Ōsaki weather in July

In July, Ōsaki averages a high of 26°C and a low of 19°C. It gets 115 mm of precipitation over about 10 rainy days. The sun is out about 22% of daylight hours. The July record high is 36°C (2011) and the record low is 8°C (1976). July is one of the most comfortable months to visit.

Ōsaki weather in August

In August, Ōsaki averages a high of 27°C and a low of 21°C. It gets 105 mm of precipitation over about 8 rainy days. The sun is out about 30% of daylight hours. The August record high is 37°C (2007) and the record low is 13°C (1980).

Ōsaki weather in September

In September, Ōsaki averages a high of 24°C and a low of 17°C. It gets 135 mm of precipitation over about 9 rainy days. The sun is out about 24% of daylight hours. The September record high is 34°C (2000) and the record low is 7°C (1981).

Ōsaki weather in October

In October, Ōsaki averages a high of 19°C and a low of 10°C. It gets 120 mm of precipitation over about 7 rainy days. The sun is out about 39% of daylight hours. The October record high is 28°C (2018) and the record low is 1°C (1983). October is one of the most comfortable months to visit.

Ōsaki weather in November

In November, Ōsaki averages a high of 13°C and a low of 4°C. It gets 53 mm of precipitation over about 5 rainy days. The sun is out about 50% of daylight hours. The November record high is 24°C (1979) and the record low is -4°C (1970).

Ōsaki weather in December

In December, Ōsaki averages a high of 7°C and a low of -1°C. It gets 37 mm of precipitation over about 6 rainy days. The sun is out about 44% of daylight hours. The December record high is 22°C (1990) and the record low is -8°C (1976).

Sunshine, humidity and wind in Ōsaki

November is the sunniest month in Ōsaki, with sunshine about 50% of daylight hours. July is the cloudiest, at 22%. Over the year the sun shines about 37% of daylight hours. Ōsaki is cloudier than 58% of Japan.

Humidity peaks in July at 84% and is lowest in March at 66%.

Ōsaki has about 4 days a year above 32°C. Ōsaki is cooler than 84% of Japan.

First and last freeze in Ōsaki

The first fall freeze in Ōsaki typically comes around November 22, and the last spring freeze around April 4. That leaves a frost-free growing season of about 232 days.

Ōsaki weather records

The hottest temperature on record at the Ōsaki station is 37°C, on August 15, 2007. The coldest is -11°C, on February 17, 1978.

The wettest day on record brought 188 mm of rain, on September 21, 2011.

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

The best time to visit Ōsaki

The most comfortable time to visit is typically May to July and October, when daytime highs sit near 21°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 5°C.

Summer (June–August) is warm, with average highs around 25°C and lows near 18°C. It can feel humid.

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

Ōsaki climate questions

How much rain does Ōsaki get?

Ōsaki gets 919 mm of precipitation in an average year, over about 81 rainy days.

What is the wettest month in Ōsaki?

September is the wettest month in Ōsaki, with 135 mm. February is the driest, with 25 mm.

How many rainy days does Ōsaki have a year?

Ōsaki has about 81 days with measurable rain in an average year. July has the most, about 10.

What is the hottest month in Ōsaki?

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

What is the coldest month in Ōsaki?

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

What is the record high temperature in Ōsaki?

The record high at the Ōsaki station is 37°C, set on August 15, 2007. The record low is -11°C, on February 17, 1978.

What is the sunniest month in Ōsaki?

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

When is the first frost in Ōsaki?

The first fall freeze in Ōsaki typically comes around November 22. The last spring freeze is around April 4.

What is the best time to visit Ōsaki?

The most comfortable time to visit is typically May to July and October, when daytime highs sit near 21°C.