Tacoma, WA weather in September
September in Tacoma: mild, with some rain. Highs 71°F, lows 53°F, about 7 days with rain. A great month for outdoor plans.
- Normal high
- 71°F
- Normal low
- 53°F
- Wet days
- 7
- 1.6 in total
- Muggy days
- 0
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 75°F | 66°F |
| Normal low | 55°F | 50°F |
| Chance of a wet day | 19% | 32% |
| Sunrise / sunset | 6:29 am / 7:50 pm | 7:07 am / 6:52 pm |
| Daylight | 13.4 h | 11.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical September day
- 6 am50°Fdew point 48°F
- 9 am60°Fdew point 52°F
- Noon67°Fdew point 52°F
- 3 pm70°Fdew point 50°F
- 6 pm66°Fdew point 50°F
- 9 pm58°Fdew point 51°F
NOAA hourly normals (local standard time) from Tacoma Mcchord AFB (7 mi away); average wind 5 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F24 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph2 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow7 of 30
- Notable rainat least 0.10 in4 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 1.6 in; a dry September brings about 0.5 in and a wet one about 2.1 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How September varies from year to year
- Warmest September, 1991-20202009: average high 74°F
- Coolest September1996: average high 67°F
- Wettest September2013: 8.3 in
- Driest September1993: no measurable precipitation
- Highest reading87°F (September 14, 2000)
- Lowest reading38°F (September 23, 2000)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 77°F | 71°F | 61°F |
| Normal low | 57°F | 53°F | 47°F |
| Wet days | 4 | 7 | 15 |
| Comfortable days | 22 | 24 | 7 |
| Daylight | 14.2 h | 12.6 h | 10.9 h |
Highs change by -6°F from August and -10°F into October.
Nearby alternatives in September
- Warmer: Leavenworth, WA87 mi · high 78°F · 4 wet days
- Drier: Leavenworth, WA87 mi · high 78°F · 4 wet days
How Tacoma ranks in September
- Normal high342nd warmest of 378 cities; 6th of 9 in Washington
- Wet days169th driest of 378
- Comfortable days3rd most of 342
Heating and cooling
September has 111 heating degree days and 16 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Tacoma in September?
The normal high is 71°F and the normal low is 53°F. From 1991 to 2020 the hottest September reading was 87°F (September 14, 2000).
Does it rain a lot in Tacoma in September?
About 7 days in September have at least 0.01 in of precipitation, and the normal total is 1.6 in. The wettest September in 1991-2020 was in 2013 (8.3 in); the driest was in 1993, with no measurable precipitation.
Is September a good time to visit Tacoma?
September ranks 4th of 12 months on our comfort score for Tacoma (82 out of 100). It has about 24 comfortable days. The best months are June, July and August.
Where the numbers come from
- Temperature, rain and frost dates: Tacoma #1 (USC00458278), 1.6 mi ESE of the city center, 25 ft (225 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Mcmillin Rsvr (USC00455224), 12 mi SE of the city center, 579 ft (329 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Tacoma Mcchord AFB (USW00024207), 7.3 mi SSW of the city center, 289 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Mcchord AFB Airport (742060-24207), 7.3 mi SSW of the city center, 322 ft (72 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).