Click on a day for an hourly weather forecast
The temperatures in Tacoma in September are quite cold with temperatures between 9°C and 22°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Tacoma during the month of September. 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 Tacoma in September 2025.
If you’re planning to visit Tacoma in the near future, we highly recommend that you review the 14 day weather forecast for Tacoma before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 0° | 12 | 17 | 2 | 166 mm | Awful | Tacoma in January |
| February | 8° / 0° | 10 | 13 | 5 | 119 mm | Awful | Tacoma in February |
| March | 10° / 1° | 12 | 17 | 3 | 134 mm | Awful | Tacoma in March |
| April | 13° / 3° | 8 | 21 | 1 | 96 mm | Bad | Tacoma in April |
| May | 18° / 5° | 6 | 25 | 0 | 74 mm | Good | Tacoma in May |
| June | 21° / 7° | 3 | 27 | 0 | 54 mm | Good | Tacoma in June |
| July | 26° / 10° | 1 | 30 | 0 | 21 mm | Perfect | Tacoma in July |
| August | 26° / 11° | 2 | 29 | 0 | 32 mm | Perfect | Tacoma in August |
| September | 22° / 9° | 4 | 26 | 0 | 70 mm | Good | Tacoma in September |
| October | 15° / 6° | 8 | 23 | 0 | 140 mm | Ok | Tacoma in October |
| November | 10° / 2° | 12 | 17 | 1 | 168 mm | Bad | Tacoma in November |
| December | 6° / 0° | 11 | 17 | 3 | 138 mm | Awful | Tacoma in December |