Somis, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Somis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——80°60°—
- MondayJul 6Foggy——78°57°-2°
- TuesdayJul 7Clear——87°58°+9°
- WednesdayJul 8Clear——91°63°+4°
- ThursdayJul 9Clear——93°64°+2°
- FridayJul 10Partly Cloudy——92°64°-1°
- SaturdayJul 11Overcast——96°64°+4°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.4 µg/m³ (AQI 57), ratio 0.67 with 10 mph wind — characteristic of long-range haze transport rather than a local source.
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 39 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 56 around 1 PM.
- Present
- AQI 39
- UV peak
- 10.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 56
PM × Wind × Precip
PM2.5 at 12.4 µg/m³ (AQI 57), ratio 0.67 with 10 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.67
- Wind
- breezy
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:12 PM
- Moonset
- 11:15 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Somis at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: March 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 93066
16-Day Forecast — Somis
- Sun80°60°1%
- Mon78°57°0%
- Tue87°58°0%
- Wed91°63°0%
- Thu93°64°0%
- Fri92°64°0%
- Sat96°64°1%
- Sun84°64°3%
- Mon95°64°5%
- Tue101°74°6%
- Wed97°72°1%
- Thu100°74°10%
- Fri100°77°9%
- Sat96°70°6%
- Sun97°74°3%
- Mon96°67°6%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
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
The year in Somis tops out in August (~70°F) and dips lowest in December (~56°F), with February wettest at 2.9 inches and August driest at 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 57° | 2.9″ | 4 |
| February | 57° | 2.9″ | 5 |
| March | 58° | 2.0″ | 3 |
| April | 60° | 0.6″ | 1 |
| May | 62° | 0.3″ | 1 |
| June | 66° | 0.1″ | 0 |
| July | 69° | 0.0″ | 0 |
| August | 70° | 0.0″ | 0 |
| September | 70° | 0.1″ | 0 |
| October | 65° | 0.5″ | 1 |
| November | 61° | 0.9″ | 2 |
| December | 56° | 1.7″ | 3 |
Frequently asked
- When does it freeze in Somis?
- Somis's last spring frost lands near mid-March, and in Somis the first fall frost follows around mid-December.
- What is the rainy season in Somis?
- February is the wettest month in Somis, about 2.9 inches on average; the year totals roughly 12 inches.
- What is the warmest month in Somis?
- On average August tops the year in Somis at about 70°F.
- What is the coldest month in Somis?
- The coldest stretch in Somis falls in December, around 56°F on average.
- When can I start a vegetable garden in Somis?
- In Somis, sow peas and hardy greens around mid-March; Somis's tomatoes and peppers wait two weeks more.
- How many rainy days does Somis get?
- Somis averages about 19 days with measurable rain or snow each year.
- What hardiness zone is Somis?
- With December around 56°F, Somis's zone reflects that minimum — the USDA ZIP map confirms Somis's band.
- What is the 10-day forecast for Somis?
- Somis's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Somis?
- See this week's day-by-day rain chances for Somis in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Somis?
- Current conditions for Somis and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Somis forecast updated?
- The Somis forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Somis?
- Today's sunrise and sunset times for Somis are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Somis?
- The next few days in Somis's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Somis, California, the hot-summer Mediterranean climate runs from about 57°F in January to 69°F in July, a 12°F seasonal range.
Somis sees close to 12 inches of precipitation annually, falling across some 19 wet days.
Somis's 12°F range, set by its 34.3°N position, drives frost timing and what thrives in Somis.
ZIP codes in Somis
- 93066