Weather in San Buenaventura, California
Fog and sun in daily rhythm. Day 59 of spring. Read this microseason across nine climate regions →
- TodayMay 16Foggy—66°54°
- SundayMay 17Overcast—69°52°
- MondayMay 18Overcast—77°55°
- TuesdayMay 19Clear—74°59°
- WednesdayMay 20Overcast—74°60°
- ThursdayMay 21Overcast—73°61°
- FridayMay 22Mostly Clear—71°58°
- PM 2.5
- 8.8 μg/m³
- PM 10
- 21.7 μg/m³
- NO₂
- 0.9 μg/m³
- Ozone
- 105.0 μg/m³
- UV Index
- 2.0 Low
When the dew is on the grass, rain will never come to pass.
- Moonrise
- 1:10 PM
- Moonset
- 3:22 AM
- In sign
- ♉︎ Taurus
Fog and sun in daily rhythm
San Buenaventura at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: March 13 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Peak growing season
As of May 17, 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
San Buenaventura's warmest month is August, with a mean temperature near 67°F, and its coldest is January at about 56°F. Rainfall peaks in February with 3.3 inches and drops to a low of 0.0 inches in August.
| 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
San Buenaventura belongs to the hot-summer Mediterranean climate region — a group of cities that share similar temperature ranges, seasonal patterns, and growing conditions.
Similar climates: Los Angeles, CA, San Francisco, CA, San Diego, CA, Riverside, CA, Sacramento, CA.
Naturalist notes
By mid-May, scrub jays are gathering nest material and ferrying it into the oaks; their squabbling over territory grows louder in the warming mornings.
A late-May evening sky near 34°N stays light past 8 p.m., and Antares makes a low, ruddy appearance just above the southern horizon after dusk.
Frequently asked
- When does it freeze in San Buenaventura?
- The last spring frost in San Buenaventura generally occurs around mid-March; the first fall frost typically arrives around mid-December.
- What is the rainy season in San Buenaventura?
- February is the wettest month, averaging roughly 3.3 inches of rain. The city receives about 13 inches annually.
- What is the warmest month in San Buenaventura?
- August is usually the warmest month, averaging about 67°F.
- What is the coldest month in San Buenaventura?
- January is typically the coldest month, averaging around 56°F.
- When can I start a vegetable garden in San Buenaventura?
- Cool-season crops such as peas and lettuce can be sown around the last spring frost in mid-March. Warm-season crops like tomatoes and peppers should wait until one to two weeks after that date.
- How many rainy days does San Buenaventura get?
- San Buenaventura averages about 19 rainy days per year.
- What hardiness zone is San Buenaventura?
- San Buenaventura's USDA hardiness zone reflects its lowest average winter temperature; the current zone can be found by searching the city's ZIP code in the USDA's online look-up tool.
Climate
San Buenaventura, California has a hot-summer Mediterranean climate. Average January temperatures sit near 56°F, while July comes in around 67°F, yielding a seasonal swing of just 11°F.
Precipitation totals roughly 13 inches over the course of the year, spread across about 19 rainy days.
Latitude (34.3°N), proximity to large bodies of water, and local elevation set the seasonal rhythm. Those factors influence what can grow, when frost is likely, and how the daily weather story unfolds.