Sendai Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sendai.
Climate overview of Sendai
Sendai, Miyagi, Japan, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in August, while winters cool to 6°C (43°F) in January.
Rain/snowfall is high, totalling around 1433 mm (56 in) per year. July is the wettest month and February the driest. The city also experiences a distinct rainy season from July to September, with warm summers and cold winters. April is the sunniest month, averaging 6.5 hours of sunshine per day.
Sendai Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sendai - and find the best time to visit.
Monthly Temperature in Sendai
Depending on the time of the year, temperatures range from comfortable to chilly in Sendai. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in August, the warmest time of the year, to a chilly 6°C (43°F) during cooler months like January.
At night, you can expect temperatures ranging from 22°C (72°F) in August to around -1°C (30°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Sendai
Sendai has a relatively rain/snowy climate with high precipitation levels, averaging 1433 mm (56 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, July it receives heavy rainfall, averaging 194 mm (7.6 in) of precipitation, recorded across 21 rainy days. In contrast, the driest month February brings less snow/rainfall, with 62 mm (2.4 in) over 21 snowy/rainy days. For more details, please visit our Sendai 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 Sendai
While the amount of sunshine in Sendai varies throughout the year, all seasons offer their own charm. Enjoy up to 6.5 hours of daily sun in April, and experience slightly darker atmosphere in July, with about 4.1 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Sendai by Month
The relative humidity is high throughout the year in Sendai.
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
Wind Speed in Sendai
The mean wind speed varies between 2 m/s (4 knots) and 4 m/s (8 knots) throughout the year. It is lowest in June, July and August and highest during March. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Sendai
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, August and October
- Warmest weather: 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 -1°C (30°F).
Frequently asked questions about the climate in Sendai
What is the best time to visit Sendai?
June, August and October typically offer the most optimal weather in Sendai. In contrast, January, February, March and December tend to have less optimal conditions. Sendai has a distinct rainy season from July to September, with warm summers and cold winters.
What temperatures can I expect in Sendai?
Daytime highs range from 6°C (43°F) in January to 28°C (82°F) in August. Nighttime lows range from -1°C (30°F) to 22°C (72°F). Temperatures vary considerably through the year.
How much rain does Sendai get?
Annual rainfall is around 1433 mm (56 in). July is the wettest month with 194 mm (7.6 in), while February is the driest with 62 mm (2.4 in).
How sunny is Sendai?
Sendai 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.
Sendai 3-Day Forecast
Sendai on the map
Sendai is highlighted - select any city to see its climate.
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