Click on a day for an hourly weather forecast
The temperatures in Hamamatsu in May are comfortable with low of 15°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Hamamatsu during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Hamamatsu in May 2025.
If you’re planning to visit Hamamatsu in the near future, we highly recommend that you review the 14 day weather forecast for Hamamatsu before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 3° | 5 | 24 | 2 | 72 mm | Bad | Hamamatsu in January |
| February | 10° / 4° | 6 | 21 | 1 | 100 mm | Ok | Hamamatsu in February |
| March | 13° / 7° | 7 | 24 | 0 | 171 mm | Bad | Hamamatsu in March |
| April | 17° / 11° | 8 | 22 | 0 | 218 mm | Ok | Hamamatsu in April |
| May | 22° / 15° | 7 | 24 | 0 | 240 mm | Ok | Hamamatsu in May |
| June | 24° / 19° | 10 | 20 | 0 | 292 mm | Good | Hamamatsu in June |
| July | 28° / 23° | 13 | 18 | 0 | 421 mm | Good | Hamamatsu in July |
| August | 30° / 25° | 10 | 21 | 0 | 297 mm | Ok | Hamamatsu in August |
| September | 27° / 22° | 10 | 20 | 0 | 312 mm | Good | Hamamatsu in September |
| October | 22° / 17° | 8 | 23 | 0 | 243 mm | Ok | Hamamatsu in October |
| November | 17° / 11° | 5 | 25 | 0 | 128 mm | Good | Hamamatsu in November |
| December | 11° / 6° | 5 | 25 | 1 | 89 mm | Ok | Hamamatsu in December |