Antioch in Fall

In fall (September, October and November), Antioch sees average daytime highs around 74°F and overnight lows near 53°F, with 2.7 in of rain over about 9 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.

Over the season highs ease from about 84°F in early September to 61°F by late November. The sky is clear or mostly clear about 66% of the time across fall, and the air most often feels dry.

Fall is Antioch's 2nd-best season to visit on our travel score. For the whole year in context, see Antioch's year-round climate.

Avg daytime high
74°F
2nd-warmest season
Avg overnight low
53°F
Rainfall
2.7 in
9 wet days
Avg wind
5 mph
Travel score
7.8
2nd-best season
Months
Sep · Oct · Nov

Temperature in Antioch in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 84°F in early September to 61°F by late November.

A typical fall day in Antioch reaches about 74°F and drops to 53°F overnight. The warmest of the three months is September, the coolest November.

40°60°80°SepOctNov

Antioch weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan57° / 43°3.799.74.2
Feb61° / 45°3.58.810.55.2
Mar66° / 48°2.78.311.76.4
Apr70° / 50°1.24.7137.6
May76° / 54°0.63148.5
Jun82° / 57°0.10.714.68.3
Jul84° / 59°0.00.214.47.7
Aug84° / 59°0.10.213.57.7
Sep82° / 58°0.00.312.38.3
Oct76° / 54°0.92.8118.6
Nov65° / 47°1.85.49.96.6
Dec57° / 43°3.48.49.44.3

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 66% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitation

Antioch gets around 2.7 in of rain over 9 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%10%20%30%40%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

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

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 5 mph across fall.

0246810SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 54 min in early September to 9 h 36 min by late November. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 4.4 kWh/m².

0246SepOctNov
Planning a trip in fall

Is fall a good time to visit Antioch?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

7.8
Sightseeing
2nd-best month of the year
6.3
Beach & pool
2nd-best month of the year

fall is one of the better times to visit Antioch for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Antioch in Fall

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

In fall, Antioch sees daytime highs around 74°F and nights near 53°F. Pack light clothes and sun protection. About 9 days see rain.

light clothessun protection

UV index in Antioch in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages 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 Antioch peaks around June 23 at about 10 (very high) — 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 highHighModerateJun 23UV 10Dec 15UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep6High
Oct5High
Nov2Moderate
Dec2Low

Air quality in Antioch in Fall

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Antioch is worst in August — around 27 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (June, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateAug 2126 µg/m³Jun 138 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar15Moderate
Apr12Good
May9Good
Jun8Good
Jul11Good
Aug27Moderate
Sep23Moderate
Oct17Moderate
Nov19Moderate
Dec14Moderate
Location & terrain

Where is Antioch?

Antioch sits at 38.0°N, 121.8°W, 43 ft above sea level, in United States. The nearest listed city is Pittsburg, 4.3 mi away.

Topography around Antioch

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

Within 2 miles, the terrain around Antioch has only modest variations in elevation — a maximum elevation change of 253 ft around an average of 59 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,501 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,452 ft.

The land around Antioch is covered by artificial surfaces (54%) within 2 miles, grassland (43%) within 10 miles, and grassland (33%) and trees (23%) within 50 miles.

2 miles
253 ft
10 miles
3,501 ft
50 miles
4,452 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Fall weather nearby: Pittsburg 4.3 mi · Oakley 5.0 mi · Brentwood 8.1 mi · Bay Point 8.7 mi · Concord 12 mi · Pleasant Hill 14 mi · Walnut Creek 16 mi · Danville 17 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 Antioch (38.0049°, -121.8058°, elevation 43 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.