Click on a day for an hourly weather forecast
The temperatures in Seaside in May are usually low and can range between 10°C and 18°C.
The wather in Seaside in May can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Seaside in May 2025.
If you’re planning to visit Seaside in the near future, we highly recommend that you review the 14 day weather forecast for Seaside before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 16° / 8° | 4 | 27 | 0 | 107 mm | Good | Seaside in January |
| February | 16° / 8° | 4 | 24 | 0 | 93 mm | Good | Seaside in February |
| March | 16° / 8° | 5 | 26 | 0 | 97 mm | Good | Seaside in March |
| April | 17° / 9° | 3 | 27 | 0 | 39 mm | Good | Seaside in April |
| May | 18° / 10° | 1 | 30 | 0 | 17 mm | Good | Seaside in May |
| June | 21° / 12° | 0 | 30 | 0 | 6 mm | Good | Seaside in June |
| July | 22° / 13° | 0 | 31 | 0 | 5 mm | Good | Seaside in July |
| August | 23° / 14° | 0 | 31 | 0 | 3 mm | Perfect | Seaside in August |
| September | 23° / 14° | 0 | 30 | 0 | 6 mm | Perfect | Seaside in September |
| October | 21° / 13° | 1 | 30 | 0 | 28 mm | Good | Seaside in October |
| November | 18° / 10° | 3 | 27 | 0 | 52 mm | Good | Seaside in November |
| December | 15° / 8° | 5 | 26 | 0 | 99 mm | Good | Seaside in December |