Osaki Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Osaki.
Climate overview of Osaki
Temperatures in Osaki, Miyagi, Japan, vary greatly throughout the year. August is the hottest month at 29°C (84°F), while January is the coldest at 5°C (41°F).
With around 1443 mm (57 in) of annual rain/snowfall, Osaki has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has a distinct rainy season from July to September, with warm summers and cold winters. The wettest month is July. April is the sunniest month, averaging 6.5 hours of sunshine per day.
Osaki Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Osaki - and find the best time to visit.
Monthly Temperature in Osaki
The climate in Osaki is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a comfortable 29°C (84°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 5°C (41°F).
At night, temperatures range from around 21°C (70°F) in August to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Osaki
Osaki has a notably wet climate with abundant precipitation, recording 1443 mm (57 in) of rain/snowfall per year. Osaki can be quite wet during July, receiving approximately 197 mm (7.8 in) of precipitation over 20 rainy days.
In contrast, during the driest month (February), you will experience much drier conditions, with 66 mm (2.6 in) of precipitation spread across 21 snowy/rainy days. For more details, please visit our Osaki Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Osaki
Osaki experiences moderate variation in sunshine hours across the seasons. With 6.5 hours daily sunshine in April, it dips to 4.1 hours in July, offering a balanced mix of sunny and overcast days.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Osaki by Month
The relative humidity is high throughout the year in Osaki.
The city experiences its highest humidity in July, reaching 84%. In March, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Osaki
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, August and October
- Warmest weather: July and August
- Most sunshine: April and May
- Seasonal pattern: A distinct rainy season from July to September, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Osaki
What is the best time to visit Osaki?
May, June, August and October typically offer the most optimal weather in Osaki. In contrast, January, February, March and December tend to have less optimal conditions. Osaki has a distinct rainy season from July to September, with warm summers and cold winters.
What temperatures can I expect in Osaki?
Daytime highs range from 5°C (41°F) in January to 29°C (84°F) in August. Nighttime lows range from -3°C (27°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Osaki get?
Annual rainfall is around 1443 mm (57 in). July is the wettest month with 197 mm (7.8 in), while February is the driest with 66 mm (2.6 in).
How sunny is Osaki?
Osaki receives around 1,843 hours of sunshine per year. April is the sunniest month with 195 hours, while July is the cloudiest with just 124 hours.
Osaki 3-Day Forecast
Osaki on the map
Osaki is highlighted - select any city to see its climate.
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