Ukiah weather in October

In October, Ukiah sees average daytime highs of 73°F and overnight lows near 47°F, with 2.2 in of rain across 4.6 wet days and about 11 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 77°F in the first days to 67°F by the end. The sky is clear or mostly clear about 65% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 24 min by month's end. Set against the rest of the year, October is Ukiah's 5th-clearest and 11th-windiest month. For the whole year in context, see Ukiah's year-round climate.

Daytime high
73°
5th warmest
Overnight low
47°
8th coldest
Rainfall
2.2 in
4.6 wet days
Daylight
11 hours
6:29 AM – 5:27 PM
Cloud cover
32%
5th clearest
Wind
4 mph
11th windiest
Solar energy
4.12 kWh/m²
Travel score
8.1
out of 10

Ukiah is city in and county seat of Mendocino County, California, United States.

Density
1,301/km²
people per km²
Founded
1876

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 77°F in the first days to 67°F by the end.

A typical October day in Ukiah reaches about 73°F in the afternoon and slips back to 47°F overnight — a 25°F spread between the day's warmth and the night's chill. On most days the high lands between 60°F and 84°F. Set against its neighbours, October runs about 9°F cooler than September and about 13°F warmer than November.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17851
27750
37750
47750
57650
67649
77649
87549
97549
107548
117448
127448
137448
147448
157347
167347
177347
187247
197247
207147
217146
227146
237046
247046
256945
266945
276845
286845
296744
306744
316644

How October really feels in Ukiah

Once humidity and wind are folded in, October 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

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

Ukiah weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan54° / 37°7.212.41.99.63.0
Feb56° / 38°6.710.82.310.53.6
Mar59° / 40°6.011.8211.74.5
Apr63° / 42°3.18.30.5135.9
May70° / 47°1.95.4014.17.5
Jun78° / 53°0.62.2014.78.6
Jul85° / 57°0.00.3014.57.1
Aug85° / 57°0.10.4013.57.2
Sep82° / 54°0.31.4012.38.3
Oct73° / 47°2.24.60118.1
Nov60° / 40°4.38.50.39.95.0
Dec53° / 36°7.812.21.39.32.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 10% of October, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18416
28416
38317
48317
58218
68119
78119
88020
98020
107921
117921
127822
137822
147723
157624
167624
177426
187426
197327
207327
217228
227129
237030
246931
257030
266931
276832
286733
296733
306634
316535

Chance of precipitation in October

Any precipitation

Ukiah gets around 2.2 in of rain over 4.6 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 21% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
110
210
310
411
511
611
711
812
912
1012
1112
1212
1312
1412
1513
1613
1713
1814
1914
2015
2115
2216
2317
2417
2518
2618
2719
2819
2920
3020
3121

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October 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%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11982
12982
13982
14982
15982
16982
17982
18982
19982
20982
21982
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

Wind in October

Winds average 4 mph in October.

Across October, 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.

0246810151015202531
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
314calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over October. Sunrise moves from 6:14 AM to 6:46 AM, and sunset from 5:50 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:145:50
211.66:155:48
311.56:165:46
411.56:175:45
511.46:185:43
611.46:195:42
711.36:205:40
811.36:215:39
911.36:225:37
1011.26:235:35
1111.26:245:34
1211.16:255:32
1311.16:265:31
1411.06:275:29
1511.06:285:28
1611.06:295:27
1710.96:305:25
1810.96:315:24
1910.86:325:22
2010.86:335:21
2110.86:355:20
2210.76:365:18
2310.76:375:17
2410.66:385:16
2510.66:395:14
2610.66:405:13
2710.56:415:12
2810.56:425:11
2910.46:435:09
3010.46:445:08
3110.46:465:07

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.12 kWh/m².

For context, solar energy here swings from a low near 1.92 kWh/m² to a high of 8.22 kWh/m² in July across the year — October's 4.12 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
34.9Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.6Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.0Bright
194.0Moderate
203.9Moderate
213.9Moderate
223.8Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in October

Hazard calendar for Ukiah

In seasonPeak

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

Ukiah's rainy season runs November–March, when most of the year's rain falls.

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

Is October a good time to visit Ukiah?

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

8.1
Sightseeing
3rd-best month of the year
5.9
Beach & pool
5th-best month of the year

October is one of the better times to visit Ukiah for general sightseeing.

What to pack for Ukiah in October

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

In October, Ukiah sees daytime highs around 73°F and nights near 47°F. Worth packing: light clothes. About 5 days see rain.

light clothes

Sea temperature near Ukiah in October

The nearest coast averages about 55°F in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 29 mi away) is warmest in September at about 55°F and coldest in April near 52°F.

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

50°52°54°56°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°F)Comfort
Jan53Bracing
Feb53Bracing
Mar53Bracing
Apr52Bracing
May52Bracing
Jun52Bracing
Jul53Bracing
Aug54Bracing
Sep55Bracing
Oct55Bracing
Nov55Bracing
Dec54Bracing

UV index in Ukiah in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

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

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateLowJul 10UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May9Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep6High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Ukiah in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ukiah is worst in September — around 31 µg/m³ PM2.5 (moderate), about 5.8× the cleanest month (June, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1031 µg/m³Jun 106 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar9Good
Apr8Good
May6Good
Jun5Good
Jul14Moderate
Aug29Moderate
Sep31Moderate
Oct14Moderate
Nov8Good
Dec6Good
Location & terrain

Where is Ukiah?

Ukiah sits at 39.2°N, 123.2°W, 633 ft above sea level, in United States. The nearest listed city is Clearlake, 34 mi away.

Topography around Ukiah

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

Within 2 miles, the terrain around Ukiah has significant variations in elevation — a maximum elevation change of 1,765 ft around an average of 827 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,415 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,362 ft.

The land around Ukiah is covered by trees (51%), artificial surfaces (25%) and grassland (20%) within 2 miles, trees (72%) and grassland (24%) within 10 miles, and trees (59%) and water (21%) within 50 miles.

2 miles
1,765 ft
10 miles
3,415 ft
50 miles
7,362 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Clearlake 34 mi · Windsor 47 mi · Santa Rosa 56 mi · Rohnert Park 62 mi · Agua Caliente 69 mi · Petaluma 70 mi · Napa 77 mi · Novato 80 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 Ukiah (39.1502°, -123.2078°, elevation 633 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).