Alum Rock weather in November

In November, Alum Rock sees average daytime highs of 63°F and overnight lows near 44°F, with 1.9 in of rain across 5.7 wet days and about 10 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 67°F in the first days to 59°F by the end. The sky is clear or mostly clear about 48% of the time in November, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of November to 9 h 36 min by month's end. Set against the rest of the year, November is Alum Rock's 7th-clearest and 8th-windiest month. For the whole year in context, see Alum Rock's year-round climate.

Daytime high
63°
8th warmest
Overnight low
44°
5th coldest
Rainfall
1.9 in
5.7 wet days
Daylight
10 hours
6:54 AM – 4:51 PM
Cloud cover
45%
7th clearest
Wind
4 mph
8th windiest
Solar energy
2.96 kWh/m²
Travel score
6.2
out of 10

Alum Rock is census-designated place in Santa Clara County, California.

Density
7,068/km²
people per km²

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 67°F in the first days to 59°F by the end.

A typical November day in Alum Rock reaches about 63°F in the afternoon and slips back to 44°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 55°F and 72°F. Set against its neighbours, November runs about 10°F cooler than October and about 7°F warmer than December.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
16847
26747
36747
46747
56646
66646
76646
86546
96546
106545
116445
126445
136445
146344
156344
166344
176244
186244
196243
206243
216143
226143
236042
246042
256042
266042
275942
285942
295941
305941

Alum Rock weather by month

How November compares with the rest of the year at a glance. November is the 8th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan56° / 40°4.49.19.74.1
Feb58° / 42°4.49.210.64.4
Mar61° / 44°3.39.211.75.4
Apr65° / 45°1.65.712.96.7
May71° / 49°0.83.4148.1
Jun77° / 53°0.20.814.59.1
Jul82° / 57°0.10.214.38.8
Aug82° / 57°0.00.313.48.8
Sep80° / 56°0.10.612.38.9
Oct73° / 51°1.02.8118.6
Nov63° / 44°1.95.7106.2
Dec56° / 40°3.98.89.54.0

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in November.

Beyond those clear spells, partly cloudy skies cover about 13% of November, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
26931
36931
46832
56733
66733
76634
86535
96436
106436
116238
126139
136139
146040
155941
165842
175842
185941
195842
205842
215743
225743
235743
245743
255644
265644
275545
285545
295446
305446

Chance of precipitation in November

Any precipitation

Alum Rock gets around 1.9 in of rain over 5.7 wet days in November. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 26% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
115
215
316
416
516
616
717
817
917
1017
1118
1218
1318
1418
1518
1618
1719
1819
1919
2019
2120
2221
2321
2422
2522
2623
2724
2824
2925
3026

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1982
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
27991
28991
29991
30991

Wind in November

Winds average 4 mph in November.

Across November, 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 November

DaylightNight

Daylight runs from about 10 h 24 min at the start of November to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over November. Sunrise moves from 6:38 AM to 7:08 AM, and sunset from 5:04 PM to 4:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
110.46:385:04
210.46:395:03
310.46:405:02
410.36:415:01
510.36:425:00
610.36:434:59
710.26:444:58
810.26:454:57
910.26:464:56
1010.16:484:56
1110.16:494:55
1210.16:504:54
1310.06:514:53
1410.06:524:53
1510.06:534:52
1610.06:544:51
179.96:554:51
189.96:564:50
199.96:574:50
209.96:584:49
219.86:594:49
229.87:004:48
239.87:014:48
249.87:024:47
259.77:034:47
269.77:044:47
279.77:054:46
289.77:064:46
299.77:074:46
309.67:084:46

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 2.96 kWh/m².

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 7.99 kWh/m² in June across the year — November's 2.96 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.6Moderate
23.5Moderate
33.5Moderate
43.4Moderate
53.4Moderate
63.3Moderate
73.3Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.0Moderate
143.0Moderate
153.0Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.5Moderate
292.5Moderate
302.5Moderate
Planning a trip in November

Hazard calendar for Alum Rock

In seasonPeak

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

Alum Rock's rainy season runs December–March, 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 Alum Rock?

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

6.2
Sightseeing
8th-best month of the year
1.7
Beach & pool
8th-best month of the year

November is a reasonable time to visit Alum Rock for sightseeing.

What to pack for Alum Rock in November

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

In November, Alum Rock sees daytime highs around 63°F and nights near 44°F. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Alum Rock in November

The nearest coast averages about 56°F in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 mi away) is warmest in August at about 59°F and coldest in April near 54°F.

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

52°54°56°58°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan54Bracing
Feb54Bracing
Mar54Bracing
Apr54Bracing
May54Bracing
Jun55Bracing
Jul57Bracing
Aug59Bracing
Sep59Bracing
Oct58Bracing
Nov56Bracing
Dec55Bracing

UV index in Alum Rock in November

LowModerateHighVery highExtreme

Clear-sky midday UV in November peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alum Rock peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 15UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Moderate

Air quality in Alum Rock 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 Alum Rock is worst in August — around 34 µg/m³ PM2.5 (moderate), about 4.9× the cleanest month (June, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 1832 µg/m³Jun 157 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar13Moderate
Apr10Good
May8Good
Jun7Good
Jul9Good
Aug34Moderate
Sep16Moderate
Oct14Moderate
Nov15Moderate
Dec12Good
Location & terrain

Where is Alum Rock?

Alum Rock sits at 37.4°N, 121.8°W, 151 ft above sea level, in United States. The nearest listed city is San Jose, 4.3 mi away.

Topography around Alum Rock

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

Within 2 miles, the terrain around Alum Rock has significant variations in elevation — a maximum elevation change of 1,129 ft around an average of 240 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,921 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,373 ft.

The land around Alum Rock is covered by artificial surfaces (73%) within 2 miles, artificial surfaces (42%), grassland (33%) and trees (22%) within 10 miles, and grassland (29%), trees (25%) and water (25%) within 50 miles.

2 miles
1,129 ft
10 miles
3,921 ft
50 miles
4,373 ft
treesgrasslandcroplandartificial surfaceswaterwetland
November weather nearby: San Jose 4.3 mi · Milpitas 6.2 mi · Santa Clara 6.8 mi · Campbell 8.7 mi · Sunnyvale 11 mi · Cupertino 12 mi · Los Gatos 12 mi · Saratoga 13 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 Alum Rock (37.3661°, -121.8272°, elevation 151 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. 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).