Climateby Month

Port Angeles, WA weather in September

NOAA 1991-2020 normals and daily records · Port Angeles all year

September in Port Angeles: mild, with some rain. Highs 66°F, lows 47°F, about 9 wet days. A great month for outdoor plans.

Normal high
66°F
Normal low
47°F
Wet days
9
1.3 in total
Muggy days
0
dew point 65°F+

How September changes from start to finish

Normal values at the start and end of September
September 1September 30
Normal high69°F62°F
Normal low49°F45°F
Chance of a wet day25%35%
Sunrise / sunset6:31 am / 7:55 pm7:11 am / 6:55 pm
Daylight13.4 h11.7 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

  1. 6 am50°Fdew point 48°F
  2. 9 am58°Fdew point 53°F
  3. Noon64°Fdew point 53°F
  4. 3 pm64°Fdew point 53°F
  5. 6 pm60°Fdew point 52°F
  6. 9 pm54°Fdew point 51°F

NOAA hourly normals (local standard time) from Quillayute State Airport (53 mi away); average wind 4 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F15 of 30
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph1 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 snow9 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 1.3 in; a dry September brings about 0.5 in and a wet one about 1.6 in (25th and 75th percentiles). About 1 day brings half an inch or more.

How September varies from year to year

  • Warmest September, 1991-20202014: average high 69°F
  • Coolest September2010: average high 62°F
  • Wettest September2013: 5.3 in
  • Driest September2012: 0.05 in
  • Highest reading88°F (September 10, 2020)
  • Lowest reading33°F (September 30, 1999)

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

AugustSeptemberOctober
Normal high70°F66°F57°F
Normal low51°F47°F42°F
Wet days6914
Comfortable days23153
Daylight14.3 h12.6 h10.8 h

Highs change by -4°F from August and -9°F into October.

Nearby alternatives in September

How Port Angeles ranks in September

  • Normal high369th warmest of 378 cities; 9th of 9 in Washington
  • Wet days252nd driest of 378
  • Comfortable days78th most of 342

What to pack for Port Angeles in September

  • A rain jacket or umbrella – rain on about 9 days

Heating and cooling

September has 254 heating degree days and 2 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How cold is Port Angeles in September?

The normal high is 66°F and the normal low is 47°F. From 1991 to 2020 the coldest September reading was 33°F (September 30, 1999).

Does it rain a lot in Port Angeles in September?

About 9 days in September have at least 0.01 in of precipitation, and the normal total is 1.3 in. The wettest September in 1991-2020 was in 2013 (5.3 in); the driest was in 2012 (0.05 in).

Is September a good time to visit Port Angeles?

September ranks 3rd of 12 months on our comfort score for Port Angeles (71 out of 100). It has about 15 comfortable days. The best months are July and August.

Where the numbers come from

  • Temperature, rain and frost dates: Port Angeles Intl Airport (USW00094266), 3.1 mi W of the city center, 288 ft (222 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snowfall: Elwha RS (USC00452548), 10 mi SW of the city center, 360 ft (294 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Snow depth: Sequim 2 E (USC00457544), 17 mi E of the city center, 50 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Quillayute State Airport (USW00094240), 53 mi WSW of the city center, 185 ft (119 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Quillayute Airport (727970-94240), 54 mi WSW of the city center, 185 ft (119 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).