Port Angeles weather in September

In September, Port Angeles sees average daytime highs of 60°F and overnight lows near 47°F, with 2.6 in of rain across 9.2 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 62°F in the first days to 57°F by the end. The sky is clear or mostly clear about 44% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Port Angeles's 3rd-clearest and 12th-windiest month. For the whole year in context, see Port Angeles's year-round climate.

Daytime high
60°
3rd warmest
Overnight low
47°
10th coldest
Rainfall
2.6 in
9.2 wet days
Daylight
12 h 18 min
5:58 AM – 6:18 PM
Cloud cover
47%
3rd clearest
Wind
4 mph
12th windiest
Solar energy
4.18 kWh/m²
Travel score
5.0
out of 10

Port Angeles is city and county seat of Clallam County, Washington State, United States.

Density
517/km²
people per km²
Founded
1890

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 62°F in the first days to 57°F by the end.

A typical September day in Port Angeles reaches about 60°F in the afternoon and slips back to 47°F overnight — a 13°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 69°F. Set against its neighbours, September runs about 5°F cooler than August and about 9°F warmer than October.

30°40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
16249
26249
36249
46249
56249
66248
76148
86148
96148
106148
116148
126148
136048
146047
156047
166047
176047
185947
195947
205947
215946
225846
235846
245846
255846
265846
275745
285745
295745
305644

How September really feels in Port Angeles

Once humidity and wind are folded in, September averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Port Angeles weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 32°9.11913.28.60.0
Feb40° / 31°6.215.311.49.90.0
Mar42° / 33°7.219.31511.60.2
Apr46° / 36°4.917.11013.41.1
May53° / 41°3.814.62.914.92.8
Jun58° / 46°3.313.40.215.83.9
Jul64° / 50°1.67.2015.46.3
Aug64° / 51°2.07.4014.16.5
Sep60° / 47°2.69.2012.45.0
Oct51° / 41°6.0151.710.62.3
Nov43° / 34°9.419.110.390.4
Dec38° / 31°9.41914.88.20.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
26040
36040
46040
56040
66238
76238
86139
96139
106040
116040
125941
135941
145941
155842
165743
175743
185743
195743
205644
215743
225743
235743
245743
255743
265644
275644
285545
295545
305446

Chance of precipitation in September

Any precipitation

Port Angeles gets around 2.6 in of rain over 9.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 31% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
128
229
329
429
529
629
729
830
931
1031
1132
1232
1332
1433
1533
1633
1733
1833
1933
2033
2133
2233
2332
2432
2532
2631
2731
2832
2932
3033

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 4 mph in September, the calmest month.

Across September, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over September. Sunrise moves from 5:36 AM to 6:18 AM, and sunset from 6:50 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:366:50
213.25:386:48
313.15:396:46
413.15:416:44
513.05:426:42
612.95:446:40
712.95:456:38
812.85:466:36
912.85:486:33
1012.75:496:31
1112.65:516:29
1212.65:526:27
1312.55:536:25
1412.55:556:23
1512.45:566:21
1612.35:586:18
1712.35:596:16
1812.26:016:14
1912.26:026:12
2012.16:036:10
2112.06:056:08
2212.06:066:05
2311.96:086:03
2411.96:096:01
2511.86:115:59
2611.76:125:57
2711.76:135:55
2811.66:155:52
2911.66:165:50
3011.56:185:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.18 kWh/m².

For context, solar energy here swings from a low near 0.91 kWh/m² to a high of 6.47 kWh/m² in July across the year — September's 4.18 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.4Bright
124.3Bright
134.3Bright
144.2Bright
154.2Bright
164.1Bright
174.0Bright
184.0Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.3Moderate
Planning a trip in September

Hazard calendar for Port Angeles

In seasonPeak

None of Port Angeles's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Port Angeles's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Port Angeles?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
3rd-best month of the year
0.5
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Port Angeles for sightseeing.

What to pack for Port Angeles in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Port Angeles sees daytime highs around 60°F and nights near 47°F. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Port Angeles in September

The nearest coast averages about 52°F in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 53°F and coldest in January near 46°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

45°50°55°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°F)Comfort
Jan46Bracing
Feb46Bracing
Mar47Bracing
Apr48Bracing
May50Bracing
Jun52Bracing
Jul53Bracing
Aug53Bracing
Sep52Bracing
Oct50Bracing
Nov49Bracing
Dec47Bracing

UV index in Port Angeles in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Angeles peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowJul 17UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7Very high
Jun6High
Jul9Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Port Angeles?

Port Angeles sits at 48.1°N, 123.4°W, 72 ft above sea level, in United States. The nearest listed city is Victoria-Downtown, 22 mi away.

Topography around Port Angeles

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Port Angeles.

Within 2 miles, the terrain around Port Angeles has only modest variations in elevation — a maximum elevation change of 604 ft around an average of 154 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 6,348 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,720 ft.

The land around Port Angeles is covered by water (41%) and trees (26%) within 2 miles, water (46%) and trees (45%) within 10 miles, and trees (61%) and water (33%) within 50 miles.

2 miles
604 ft
10 miles
6,348 ft
50 miles
7,720 ft
treesgrasslandartificial surfacesbare terrainwater
September weather nearby: Victoria-Downtown 22 mi · Colwood 22 mi · Esquimalt 22 mi · Victoria 22 mi · Sooke 22 mi · Langford 23 mi · Oak Bay 24 mi · Carey 24 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Port Angeles (48.1181°, -123.4307°, elevation 72 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).