Grey clouds cover the sky as Sendai enters April, with rain falling on an average of 9-10 days. This is when the temperature touches the special double digits, and you get 10℃-18℃ on average. The sun gets friendly with the rain. The average temperature is of 10.9 °C (52 °F), with a minimum of 6.3 °C (43.3 °F) and a maximum of 15.5 °C (59.9 °F).
By this time, you should definitely be able to see cherry blossoms in Tsutsujigaoka Park and Nishi Park.
The average temperature in May is of 16.0 °C (61 °F), with a minimum of 11.7 °C (53.1 °F) and a maximum of 20.2 °C (68.4 °F). So, now we are getting to the warmth of the matter. Cherry blossoms should still be in bloom at the start of the month so it is the right mix and the perfect time to view this beautiful wonder.
The temperatures in June are pleasantly comfortable, that is because the average temperature is of 19.6 °C (67 °F), with a minimum of 16.1 °C (61 °F) and a maximum of 23.1 °C (73.6 °F).
The weather is wonderful, but places and events might get a little crowded. Tourism peaks in June and festivals are warming up for their yearly parade. Don’t be surprised if you experience rain as June is also the start of the rainy season (tsuyu (梅雨) in the Tohoku area of Japan.
In Sendai Miyagi the rain falls for 152.2 days and collects up to 720mm (28.35″) of precipitation.
The average annual highest temperature in Sendai is 30.0°C (86.0°F).
Snowfalls in Sendai during the months of December through April.
The wettest months in Sendai are August and October.
The warmest time of year in Sendai is around August, where temperatures usually get up to 30.0°C (86.0°F).
May has the most sunshine, with an average of 9.5h of sunshine.
The most humid month in Sendai, Japan, is July, with an average relative humidity of 84%.
The warmest month in Sendai is August, with an average high-temperature of 27.8°C (82°F) and an average low-temperature of 21.4°C (70.5°F).
The month with the warmest seawater is August, with an average sea temperature of 23.9°C (75°F).