Climate and average weather in Oxnard

In Oxnard, the summers are warm, dry, and clear and the winters are mild and mostly clear.

Best: late April to mid November

Over the course of the year, the temperature in Oxnard typically varies from 49°F to 75°F, and is rarely below 44°F or above 82°F. August is the hottest month of the year, while February is the coldest.

Based on the travel score, the best time of year to visit Oxnard for warm-weather activities is from late April to mid November.

Hottest
Aug
75°
Coldest
Feb
49°
Wettest
Feb
3.7 in
Driest
Aug
0.0 in
Rain / yr
15.5 in
32 wet days
Daylight
9.7–14.3 h
shortest–longest
Elevation
52 ft
34.2°N
Clearest
Aug
14% cloud

Oxnard is city in Ventura County, California, United States.

Density
2,041/km²
people per km²
Founded
1903

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

Oxnard weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late April to mid November.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Oxnard, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.5 months, from June 27 to October 9, with daily high temperatures above 72°F. The hottest month of the year in Oxnard is August, with an average high of 75°F and low of 64°F.

The cool season lasts 4.3 months, from November 30 to April 8, with daily high temperatures below 64°F. The coldest month of the year in Oxnard is February, with an average low of 49°F and high of 61°F.

Days typically run about 12°F warmer than nights year-round.

40°50°60°70°80°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)Avg low (°F)
Jan6149
Feb6149
Mar6251
Apr6552
May6756
Jun7059
Jul7463
Aug7564
Sep7463
Oct7159
Nov6654
Dec6149

Average hourly temperature in Oxnard

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 75°F, and coldest before dawn in February, near 49°F.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Oxnard weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 49°3.75.6105.9
Feb61° / 49°3.76.110.75.7
Mar62° / 51°2.65.111.76.3
Apr65° / 52°0.92.812.87.3
May67° / 56°0.41.513.87.9
Jun70° / 59°0.10.314.28.7
Jul74° / 63°0.10.4149.3
Aug75° / 64°0.00.113.39.6
Sep74° / 63°0.10.512.29.3
Oct71° / 59°0.7211.18.5
Nov66° / 54°0.92.810.27.6
Dec61° / 49°2.34.99.86.1

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Oxnard gets about 15.5 in of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.

The wetter season lasts 5.3 months, from around Nov 8 to Apr 17, peaking in February at about 24% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 17.

February is the wettest month by volume, with 3.7 in over about 6 wet days; August is the driest, with 0.0 in.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetFeb 21 · 24%Aug 17 · 0%
Rain on a day (%)Rain days
Jan186
Feb226
Mar175
Apr93
May52
Jun10
Jul10
Aug00
Sep21
Oct62
Nov103
Dec165

Monthly rainfall

Over a full year, Oxnard collects about 15.5 in of rain across 32 wet days — roughly 1.3 in in an average month.

It doesn’t fall evenly. February is the wettest month with 3.7 in, while August is the driest at just 0.0 in. The three wettest months alone bring about 65% of the year’s total.

00.511.522.533.544.5JanFebMarAprMayJunJulAugSepOctNovDec3.73.72.60.90.40.10.10.00.10.70.92.3
Rainfall (in)Rain days
Jan3.76
Feb3.76
Mar2.65
Apr0.93
May0.42
Jun0.10
Jul0.10
Aug0.00
Sep0.11
Oct0.72
Nov0.93
Dec2.35

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Oxnard, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around May 10 and lasts for 5.9 months, ending around November 4. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 96% of the time on average.

The cloudier part of the year begins around November 5 and lasts for 5.4 months, ending around April 17. The cloudiest month is February, when it is overcast or mostly cloudy 39% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecAug 18 · 96%Feb 25 · 60%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6337
Feb6139
Mar6733
Apr7822
May8119
Jun8911
Jul937
Aug964
Sep937
Oct8416
Nov7624
Dec6733

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 14, brings about 14 h 18 min of light; the shortest, around December 13, only 9 h 42 min — a swing of roughly 4 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan10.07:075:05
Feb10.76:495:33
Mar11.76:145:58
Apr12.85:316:23
May13.85:006:46
Jun14.24:497:05
Jul14.05:007:05
Aug13.35:226:39
Sep12.25:455:57
Oct11.16:085:16
Nov10.26:364:48
Dec9.87:014:45

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Oxnard averages about 20 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 14 and 28 days.

The sunnier stretch runs 5.4 months, from around May 25 to Nov 4. The sunniest month is August, with roughly 27 sunny days (brilliant).

The greyest month is February, down near 15 sunny days — about 46% fewer than the August peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 1128 daysFeb 2714 days
Sunny daysSky
Jan16Bright
Feb14Mixed
Mar16Bright
Apr19Bright
May20Bright
Jun23Brilliant
Jul27Brilliant
Aug28Brilliant
Sep26Brilliant
Oct23Bright
Nov19Bright
Dec17Bright

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Oxnard, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.4 months, from around June 23 to October 4. The muggiest month is July, when the air feels humid, muggy or worse about 50% of the time.

The most comfortable stretch runs from around October 5 to June 22, and January is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 20 · 100%Jul 31 · 34%humiddrycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan99100
Feb99100
Mar99100
Apr97300
May762410
Jun2862100
Jul149464
Aug036567
Sep1051373
Oct484660
Nov91900
Dec99100

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in Oxnard is steady company: average speeds sit near 5 mphcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 18 · 6 mphOct 23 · 4 mph
Wind speed (mph)Feels
Jan5calm
Feb5calm
Mar5calm
Apr6calm
May5calm
Jun5calm
Jul5calm
Aug5calm
Sep4calm
Oct4calm
Nov4calm
Dec5calm

Best time to visit Oxnard

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Oxnard throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around early May, Oxnard is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 64°F and 82°F. Based on this score, the best time of year to visit Oxnard for general outdoor tourist activities is from late April to mid November, with a peak score in the second week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 13 · 9.6

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan5.9good
Feb5.7good
Mar6.3good
Apr7.3good
May7.9ideal
Jun8.7ideal
Jul9.3ideal
Aug9.6ideal
Sep9.3ideal
Oct8.5ideal
Nov7.6ideal
Dec6.1good

The beach/pool score favors clear, rainless days with daytime highs between 75°F and 93°F. Based on this score, the best time of year to visit Oxnard for hot-weather activities is from late June to early October, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 24 · 8.1

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Oxnard, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around August (highs near 75°F), the essentials are light clothes and sun protection. In the cold season around February (highs near 61°F), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Oxnard sees daytime highs around 75°F and nights near 64°F. Pack sun protection. Worth having: light clothes.

Sea temperature near Oxnard

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea offshore is warmest in August at about 67°F and coldest in March near 58°F.

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

55°60°65°70°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°F)Comfort
Jan58Bracing
Feb58Bracing
Mar58Bracing
Apr58Bracing
May60Cool
Jun63Cool
Jul66Cool
Aug67Cool
Sep67Cool
Oct65Cool
Nov62Cool
Dec60Cool

UV index (midday) in Oxnard by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Oxnard peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 10Dec 15UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5Moderate
Apr7Very high
May8Very high
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Average hourly UV index in Oxnard

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan2.50
Feb4.50
Mar50
Apr73
May7.54
Jun8.56
Jul8.56
Aug85.5
Sep6.53.5
Oct5.50
Nov20
Dec00

Air quality in Oxnard by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Oxnard is worst in December — around 78 µg/m³ PM2.5 (unhealthy), about 12.6× the cleanest month (January, 6 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyDec 1670 µg/m³Jan 246 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar8Good
Apr7Good
May7Good
Jun7Good
Jul11Good
Aug12Good
Sep11Good
Oct8Good
Nov14Moderate
Dec78Unhealthy
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Oxnard is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 50°F)Frost-free shaded

Growing degree days tally heat above 50°F: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Oxnard banks about 4,220 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°F·days)
Jan163
Feb147
Mar201
Apr254
May350
Jun443
Jul572
Aug607
Sep552
Oct465
Nov296
Dec170

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Oxnard receives about 5.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.9 and 8.1 kWh/m².

The brighter stretch of the year lasts 6.3 months, from around Mar 20 to Sep 27. The brightest month is June, averaging about 8.0 kWh/m² (intense).

The dimmest month is December, down near 3.0 kWh/m² — roughly 63% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 238.1 kWhDec 172.9 kWh
Solar energy (kWh/m²)Level
Jan3.1Moderate
Feb4.0Bright
Mar5.5Bright
Apr6.9Intense
May7.6Intense
Jun8.1Intense
Jul7.8Intense
Aug7.3Intense
Sep6.2Intense
Oct4.8Bright
Nov3.6Moderate
Dec3.0Moderate

Where is Oxnard?

Oxnard sits at 34.2°N, 119.2°W, 52 ft above sea level, in United States. The nearest listed city is Port Hueneme, 3.7 mi away.

Topography around Oxnard

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

Within 2 miles, the terrain around Oxnard has only modest variations in elevation — a maximum elevation change of 75 ft around an average of 52 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,667 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,806 ft.

The land around Oxnard is covered by artificial surfaces (81%) within 2 miles, water (35%) within 10 miles, and water (47%) within 50 miles.

2 miles
75 ft
10 miles
1,667 ft
50 miles
8,806 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Port Hueneme 3.7 mi · Camarillo 8.1 mi · Ventura 8.7 mi · Santa Paula 13 mi · Moorpark 18 mi · Thousand Oaks 19 mi · Fillmore 21 mi · Simi Valley 23 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 Oxnard (34.1975°, -119.177°, elevation 52 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).