Kent, WA weather in September
Expect mild weather with some rain in Kent in September, with highs near 72°F and lows near 54°F. Rain falls on about 8 days. Great for outdoor plans.
- Normal high
- 72°F
- Normal low
- 54°F
- Wet days
- 8
- 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 | 67°F |
| Normal low | 56°F | 51°F |
| Chance of a wet day | 23% | 35% |
| Sunrise / sunset | 6:28 am / 7:49 pm | 7:06 am / 6:51 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 am55°Fdew point 51°F
- 9 am60°Fdew point 52°F
- Noon66°Fdew point 52°F
- 3 pm69°Fdew point 51°F
- 6 pm65°Fdew point 50°F
- 9 pm61°Fdew point 51°F
NOAA hourly normals (local standard time) from Seattle Tacoma Intl Airport (6 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F21 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph4 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 snow8 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 0.8 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, 1991-20202020: average high 74°F
- Coolest September2004: average high 65°F
- Wettest September2013: 6.2 in
- Driest September1991: no measurable precipitation
- Highest reading93°F (September 11, 2013)
- Lowest reading42°F (September 30, 2009)
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 | 78°F | 72°F | 61°F |
| Normal low | 57°F | 54°F | 47°F |
| Wet days | 5 | 8 | 14 |
| Comfortable days | 21 | 21 | 6 |
| Daylight | 14.2 h | 12.6 h | 10.8 h |
Highs change by -6°F from August and -11°F into October.
Nearby alternatives in September
- Warmer: Leavenworth, WA75 mi · high 78°F · 4 wet days
- Drier: Leavenworth, WA75 mi · high 78°F · 4 wet days
- Cooler: Port Angeles, WA75 mi · high 66°F · 9 wet days
How Kent ranks in September
- Normal high333rd warmest of 378 cities; 4th of 9 in Washington
- Wet days209th driest of 378
- Comfortable days12th most of 342
What to pack for Kent in September
- A rain jacket or umbrella – rain on about 8 days
Heating and cooling
September has 102 heating degree days and 30 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Kent in September?
The normal high is 72°F and the normal low is 54°F. From 1991 to 2020 the hottest September reading was 93°F (September 11, 2013).
Does it rain a lot in Kent in September?
About 8 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 (6.2 in); the driest was in 1991, with no measurable precipitation.
Is September a good time to visit Kent?
September ranks 4th of 12 months on our comfort score for Kent (79 out of 100). It has about 21 comfortable days. The best months are June, July and August.
Where the numbers come from
- Temperature, rain and humidity and wind by hour: Seattle Tacoma Intl Airport (USW00024233), 5.7 mi NW of the city center, 370 ft (327 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Seattle Sand Pt WSFO (USW00094290), 21 mi N of the city center, 60 ft . NOAA normals and daily records, 1991-2020.
- Frost dates: Kent (USC00454169), 2.5 mi N of the city center, 30 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Seattle-Tacoma International Airport (727930-24233), 5.8 mi NW of the city center, 369 ft (326 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).