Oxnard, CA Climate & Monthly Averages
Oxnard has a semi-arid climate. August is the hottest month, averaging 75° by day; January is the coldest at 63°.
Temperature stays steady in Oxnard; moisture changes
Oxnard runs on a dry-summer rhythm: the warmest months are also the driest. July averages 2 mm (0.1 in) while the wet season peaks in January at 3.4 inches (87 mm). Highs range from 63°F (17°C) to 75°F (24°C).
What changes when temperature does not
8 months average under 20 mm of rain, the longest unbroken stretch running April through November. January sits at the other end of the year: 63°F (17°C) by day, 48°F (9°C) at night. Warmth peaks in August: highs of 75°F (24°C), lows of 62°F (17°C). Sunshine averages 10.8 hours a day over the year - sunnier than 91% of the 3496 cities in our dataset, peaking in July at 13.2 hours.
January is the wettest month at 3.4 inches (87 mm) over 6 days; July is the driest. The gridded 2015-2024 daily record for this location tops out at 100°F (38°C) and bottoms at 36°F (2°C) - decade extremes, not all-time station records.
More climate facts for Oxnard
- Hottest month: August - highs near 75°F (24°C)
- Coldest month: January - highs near 63°F (17°C)
- Decade extremes (2015-2024): 100°F (38°C) high · 36°F (2°C) low
- Wettest month: January (6 rainy days) · Sunniest: July (13.2 h sun/day)
- Climate type: semi-arid
- Annual swing: 7°C between the average warmest and coolest month · day to night: 8°C
- Average humidity: 74%
Pick dates by rain and sunshine in Oxnard
Choose dates by rain, not just temperature
The best time to visit Oxnard is generally January to June, when temperatures sit either side of the peak heat rather than in it. Daytime temperatures in that window sit near 65°F (19°C), with rain on about 4 days a month. For the same question asked the other way round, see where else is warm in January.
What to pack
Pack for Oxnard with light layers that can absorb a mild swing through the day. August nights average 62°F (17°C), so evenings rarely match the afternoons.
Where Oxnard sits among other climates
- Rain or snow reaches the ground on 33 days a year - fewer wet days than all but 5% of the 3496 cities we track.
- 61% of the year's precipitation falls in its wettest three months - more seasonal than 92% of the 3496 cities we track.
- Annual precipitation is 14.8 inches (375 mm) - drier than all but 10% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.
Small temperature shifts, month by month
Each card shows the average high and low. The bar places that month between Oxnard's coldest night and warmest afternoon.
January
- Rain
- 6 days
- Sunshine
- 8.4 h
- Daylight
- 10.1 h
February
- Rain
- 5 days
- Sunshine
- 9.3 h
- Daylight
- 10.9 h
March
- Rain
- 7 days
- Sunshine
- 10.4 h
- Daylight
- 11.9 h
April
- Rain
- 2 days
- Sunshine
- 11.4 h
- Daylight
- 13.0 h
May
- Rain
- 1 day
- Sunshine
- 12.2 h
- Daylight
- 13.9 h
June
- Rain
- 0 days
- Sunshine
- 12.4 h
- Daylight
- 14.4 h
July
- Rain
- 0 days
- Sunshine
- 13.2 h
- Daylight
- 14.2 h
August
- Rain
- 0 days
- Sunshine
- 12.3 h
- Daylight
- 13.4 h
September
- Rain
- 1 day
- Sunshine
- 11.3 h
- Daylight
- 12.3 h
October
- Rain
- 2 days
- Sunshine
- 10.3 h
- Daylight
- 11.3 h
November
- Rain
- 2 days
- Sunshine
- 9.4 h
- Daylight
- 10.3 h
December
- Rain
- 5 days
- Sunshine
- 8.4 h
- Daylight
- 9.9 h
Looking for warmer alternatives? Browse warm places by month, or compare Oxnard's coolest part of the year: January, March, December.
Monthly temperature and rain table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 63° | 48° | 6 | 3.4 in | 8.4 h/day | 10.1 h | 19% | 71% |
| February | 64° | 48° | 5 | 2.6 in | 9.3 h/day | 10.9 h | 17% | 68% |
| March | 64° | 49° | 7 | 3.0 in | 10.4 h/day | 11.9 h | 22% | 75% |
| April | 66° | 52° | 2 | 0.6 in | 11.4 h/day | 13.0 h | 8% | 75% |
| May | 65° | 54° | 1 | 0.3 in | 12.2 h/day | 13.9 h | 4% | 80% |
| June | 70° | 58° | 0 | 0.1 in | 12.4 h/day | 14.4 h | 1% | 80% |
| July | 74° | 61° | 0 | 0.1 in | 13.2 h/day | 14.2 h | 2% | 81% |
| August | 75° | 62° | 0 | 0.4 in | 12.3 h/day | 13.4 h | 2% | 81% |
| September | 75° | 62° | 1 | 0.3 in | 11.3 h/day | 12.3 h | 4% | 80% |
| October | 74° | 58° | 2 | 0.3 in | 10.3 h/day | 11.3 h | 5% | 70% |
| November | 69° | 52° | 2 | 0.7 in | 9.4 h/day | 10.3 h | 8% | 63% |
| December | 64° | 48° | 5 | 3.0 in | 8.4 h/day | 9.9 h | 17% | 67% |
Questions about Oxnard's even temperatures
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The subtle seasons of Oxnard
Spring (March through May)
Spring runs cool rather than cold here - highs near 65°F (18°C), nights near 52°F (11°C), and rain comes on about 10 days over the three months. Daylight is generous - around 11.3 hours of sun a day.
Summer (June through August)
Summer brings comfortable warmth here - highs near 73°F (23°C), nights near 60°F (16°C), and precipitation is sparse, near 14 mm (0.6 in) for the season. Daylight is generous - around 12.6 hours of sun a day.
Fall (September through November)
Through fall, Oxnard is mild and warm: 73°F (23°C) by day, 57°F (14°C) after dark, and precipitation is sparse, near 1.3 inches (33 mm) for the season. Daylight is generous - around 10.3 hours of sun a day.
Winter (December through February)
Winter is mild here - highs near 63°F (17°C), nights near 48°F (9°C), and rain comes on about 16 days over the three months.
Oxnard temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.