Oxnard, California Weather
Coastal fog thickens at dawn. Day 76 of spring. Read this microseason across nine climate regions →
Oxnard weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Foggy——66°57°—
- ThursdayJun 4Foggy——71°56°+5°
- FridayJun 5Foggy——71°58°0°
- SaturdayJun 6Overcast——68°62°-3°
- SundayJun 7Mostly Clear——68°61°0°
- MondayJun 8Overcast——69°61°+1°
- TuesdayJun 9Partly Cloudy——71°62°+2°
PM2.5/PM10 ratio 0.62 with 8 mph wind — characteristic of long-range haze transport rather than a local source. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 41. Overcast through the UV peak window (cloud cover ~86%) — afternoon ozone should stay flat.
- Present
- AQI 41
- UV peak
- 9.7 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 27
PM × Wind × Precip
PM2.5/PM10 ratio 0.62 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.62
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
The higher the clouds, the finer the weather.
- Moonrise
- 5:32 AM
- Moonset
- 3:19 PM
- In sign
- ♑︎ Capricorn
Coastal fog thickens at dawn
Oxnard at a glance
- Today vs. normal: 14°F below the seasonal normal for this latitude
- Last frost: March 12 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
August marks Oxnard's warmest month (~67°F mean), while January brings the coldest temperatures (~56°F). February delivers peak rainfall at 3.3 inches, contrasting sharply with August's dry period of 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 56° | 2.9″ | 4 |
| February | 57° | 3.3″ | 4 |
| March | 57° | 2.3″ | 3 |
| April | 59° | 0.7″ | 2 |
| May | 61° | 0.3″ | 1 |
| June | 64° | 0.1″ | 0 |
| July | 67° | 0.0″ | 0 |
| August | 67° | 0.0″ | 0 |
| September | 67° | 0.1″ | 0 |
| October | 65° | 0.5″ | 1 |
| November | 60° | 0.7″ | 2 |
| December | 56° | 2.1″ | 3 |
Regional context
Oxnard belongs to a hot-summer Mediterranean climate region that encompasses nearby cities with comparable temperature ranges, seasonal patterns, and growing conditions.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
California poppies typically begin their spring bloom cycle in late March across Oxnard's coastal areas.
Red-winged blackbirds start establishing territories in local wetlands during early April.
Frequently asked
- When does it freeze in Oxnard?
- Spring's final frost in Oxnard generally occurs around mid-March, while the season's first frost returns around mid-December.
- What is the rainy season in Oxnard?
- February stands as the wettest month, delivering about 3.3 inches of rain on average, contributing to the city's annual total of roughly 13 inches.
- What is the warmest month in Oxnard?
- August typically brings the warmest weather, with temperatures averaging about 67°F.
- What is the coldest month in Oxnard?
- January usually delivers the coldest conditions, averaging about 56°F.
- When can I start a vegetable garden in Oxnard?
- Cool-season crops like peas and lettuce can be planted around the last spring frost in mid-March, while warm-season crops such as tomatoes and peppers should wait 1–2 weeks after.
- How many rainy days does Oxnard get?
- Oxnard experiences about 19 rainy days per year on average.
- What hardiness zone is Oxnard?
- Oxnard's USDA hardiness zone depends on its lowest average winter temperature; the USDA's online lookup tool provides the current zone designation using the city ZIP.
Climate
Oxnard, California experiences a hot-summer Mediterranean climate zone. Winter temperatures in January hover near 56°F, while July averages 67°F — creating an 11°F seasonal swing.
Throughout the year, Oxnard collects about 13 inches of precipitation across roughly 19 rainy days.
Several factors determine the local weather patterns: latitude at 34.2°N, proximity to large water bodies, and elevation. These elements influence plant growth cycles, frost timing, and daily weather conditions.