Click on a day for an hourly weather forecast
The temperatures in Niigata in May are usually low and can range between 12°C and 19°C.
You can expect about 3 to 8 days of rain in Niigata 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 Niigata in May 2025.
If you’re planning to visit Niigata in the near future, we highly recommend that you review the 14 day weather forecast for Niigata before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 1° | 20 | 6 | 6 | 181 mm | Awful | Niigata in January |
| February | 5° / 1° | 15 | 9 | 4 | 118 mm | Awful | Niigata in February |
| March | 9° / 4° | 12 | 19 | 1 | 128 mm | Bad | Niigata in March |
| April | 14° / 7° | 9 | 21 | 0 | 112 mm | Ok | Niigata in April |
| May | 19° / 12° | 7 | 24 | 0 | 116 mm | Ok | Niigata in May |
| June | 23° / 17° | 9 | 21 | 0 | 130 mm | Good | Niigata in June |
| July | 27° / 22° | 13 | 18 | 0 | 272 mm | Good | Niigata in July |
| August | 28° / 23° | 12 | 19 | 0 | 191 mm | Good | Niigata in August |
| September | 25° / 20° | 10 | 20 | 0 | 169 mm | Good | Niigata in September |
| October | 19° / 14° | 10 | 21 | 0 | 157 mm | Ok | Niigata in October |
| November | 14° / 9° | 13 | 17 | 0 | 178 mm | Ok | Niigata in November |
| December | 8° / 4° | 19 | 10 | 2 | 235 mm | Awful | Niigata in December |