Click on a day for an hourly weather forecast
The temperatures in Sendai in May are usually low and can range between 10°C and 20°C.
You can expect rain for roughly half of the month of May in Sendai. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Sendai in May 2025.
If you’re planning to visit Sendai in the near future, we highly recommend that you review the 14 day weather forecast for Sendai before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -4° | 11 | 1 | 27 | 157 mm | Awful | Sendai in January |
| February | 2° / -4° | 10 | 1 | 22 | 125 mm | Awful | Sendai in February |
| March | 7° / 0° | 10 | 7 | 15 | 160 mm | Awful | Sendai in March |
| April | 13° / 5° | 9 | 17 | 4 | 171 mm | Awful | Sendai in April |
| May | 20° / 10° | 8 | 23 | 0 | 171 mm | Ok | Sendai in May |
| June | 23° / 14° | 8 | 22 | 0 | 169 mm | Good | Sendai in June |
| July | 26° / 19° | 12 | 19 | 0 | 229 mm | Good | Sendai in July |
| August | 28° / 20° | 10 | 21 | 0 | 222 mm | Good | Sendai in August |
| September | 23° / 16° | 8 | 22 | 0 | 199 mm | Good | Sendai in September |
| October | 17° / 10° | 7 | 24 | 0 | 222 mm | Ok | Sendai in October |
| November | 11° / 5° | 8 | 18 | 5 | 119 mm | Awful | Sendai in November |
| December | 4° / -1° | 11 | 2 | 20 | 155 mm | Awful | Sendai in December |