West Lake Sammamish weather in November

In November, West Lake Sammamish sees average daytime highs of 49°F and overnight lows near 38°F, with 9.0 in of precipitation across 18.7 wet days and about 9.1 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 53°F in the first days to 46°F by the end. The sky is clear or mostly clear about 16% of the time in November, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of November to 8 h 30 min by month's end. Set against the rest of the year, November is West Lake Sammamish's 10th-clearest and 3rd-windiest month. For the whole year in context, see West Lake Sammamish's year-round climate.

Daytime high
49°
9th warmest
Overnight low
38°
5th coldest
Precipitation
9.0 in
18.7 wet days
Daylight
9 hours
7:23 AM – 4:25 PM
Cloud cover
75%
10th clearest
Wind
6 mph
3rd windiest
Solar energy
1.21 kWh/m²
Travel score
1.6
out of 10

West Lake Sammamish is census designated place.

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

Temperature in November

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 53°F in the first days to 46°F by the end.

A typical November day in West Lake Sammamish reaches about 49°F in the afternoon and slips back to 38°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 43°F and 56°F. Set against its neighbours, November runs about 9°F cooler than October and about 5°F warmer than December.

20°30°40°50°60°70°151015202530
Avg high (°F)Avg low (°F)
15340
25340
35340
45240
55240
65240
75240
85139
95139
105139
115139
125039
135039
145039
154938
164938
174938
184938
194838
204837
214837
224737
234737
244736
254736
264636
274636
284636
294636
304635

How November really feels in West Lake Sammamish

Once humidity and wind are folded in, November averages 0 days that feel above 90°F and 9 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
9
wind chill below the day's low

The story in November is cold — wind chill drags the overnight "feels like" below the raw low.

West Lake Sammamish weather by month

How November compares with the rest of the year at a glance. November is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan45° / 35°8.318.73.68.70.8
Feb48° / 36°5.815.52.69.91.5
Mar52° / 37°6.518.71.811.62.2
Apr57° / 41°5.416.50.213.33.4
May63° / 46°3.812.8014.95.1
Jun67° / 50°3.211.4015.75.9
Jul74° / 54°1.36.5015.47.7
Aug74° / 54°1.65.7014.17.9
Sep68° / 49°3.49012.46.6
Oct58° / 43°6.615.1010.63.9
Nov49° / 38°9.018.719.11.6
Dec44° / 35°8.118.43.48.30.6

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in November.

Beyond those clear spells, partly cloudy skies cover about 9% of November, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
32971
42773
52773
62773
72674
82575
92575
102476
112476
122476
132476
142476
152278
162278
172278
182278
192278
202278
212278
222278
232377
242377
252476
262476
272674
282674
292674
302674

Chance of precipitation in November

Any precipitationSnow

West Lake Sammamish gets around 9.0 in of rain and snow over 18.7 wet days in November, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 61% and peaks near 65% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)Snow chance (%)
1540
2550
3550
4560
5570
6570
7581
8591
9601
10601
11611
12622
13622
14632
15633
16643
17643
18644
19654
20655
21655
22656
23656
24647
25647
26637
27627
28617
29618
30608

Humidity in November

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, November 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 November

Winds average 6 mph in November.

Across November, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (mph)Feels
15calm
25calm
35calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in November

DaylightNight

Daylight runs from about 9 h 42 min at the start of November to 8 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over November. Sunrise moves from 7:00 AM to 7:41 AM, and sunset from 4:44 PM to 4:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:004:44
29.77:024:42
39.67:034:41
49.67:054:39
59.57:064:38
69.57:084:37
79.47:094:35
89.47:114:34
99.37:124:33
109.37:144:31
119.37:154:30
129.27:174:29
139.27:184:28
149.17:204:27
159.17:214:26
169.07:234:25
179.07:244:24
189.07:264:23
198.97:274:22
208.97:284:21
218.87:304:20
228.87:314:19
238.87:324:18
248.77:344:18
258.77:354:17
268.77:364:16
278.67:384:16
288.67:394:15
298.67:404:15
308.57:414:14

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 1.21 kWh/m².

For context, solar energy here swings from a low near 0.9 kWh/m² to a high of 6.18 kWh/m² in July across the year — November's 1.21 kWh/m² sits near the bottom.

00.511.522.5151015202530
Solar energy (kWh/m²)Level
11.7Dim
21.6Dim
31.6Dim
41.6Dim
51.5Dim
61.5Dim
71.4Dim
81.4Dim
91.4Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.2Dim
151.2Dim
161.2Dim
171.2Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.1Dim
251.0Dim
261.0Dim
271.0Dim
281.0Dim
291.0Dim
301.0Dim
Planning a trip in November

Hazard calendar for West Lake Sammamish

In seasonPeak

In November, West Lake Sammamish sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

West Lake Sammamish'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 November a good time to visit West Lake Sammamish?

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

1.6
Sightseeing
9th-best month of the year
0.0
Beach & pool
8th-best month of the year

November is a weaker month for outdoor sightseeing in West Lake Sammamish.

What to pack for West Lake Sammamish in November

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

In November, West Lake Sammamish sees daytime highs around 49°F and nights near 38°F. Pack a warm layer and rain gear. About 19 days see rain.

a warm layerrain gear

UV index in West Lake Sammamish in November

LowModerateHighVery highExtreme

Clear-sky midday UV in November peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in West Lake Sammamish peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 17 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 17UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in West Lake Sammamish in November

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.

Air quality in West Lake Sammamish is worst in September — around 22 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodSep 1322 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar12Moderate
Apr12Good
May11Good
Jun10Good
Jul10Good
Aug18Moderate
Sep22Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

Where is West Lake Sammamish?

West Lake Sammamish sits at 47.6°N, 122.1°W, 30 ft above sea level, in United States. The nearest listed city is City of Sammamish, 3.7 mi away.

Topography around West Lake Sammamish

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of West Lake Sammamish.

Within 2 miles, the terrain around West Lake Sammamish has significant variations in elevation — a maximum elevation change of 1,076 ft around an average of 272 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,005 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,695 ft.

The land around West Lake Sammamish is covered by trees (52%) and water (32%) within 2 miles, trees (66%) within 10 miles, and trees (76%) within 50 miles.

2 miles
1,076 ft
10 miles
3,005 ft
50 miles
9,695 ft
treesgrasslandartificial surfacesbare terrainwater
November weather nearby: City of Sammamish 3.7 mi · Sammamish 4.3 mi · Issaquah 4.3 mi · Bellevue 5.0 mi · Mercer Island 5.6 mi · Redmond 6.8 mi · Union Hill-Novelty Hill 8.1 mi · Columbia City 8.1 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 West Lake Sammamish (47.5776°, -122.1012°, elevation 30 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).