Oceanside, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Oceanside weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——75°64°—
- MondayJul 6Overcast——75°64°0°
- TuesdayJul 7Overcast——79°63°+4°
- WednesdayJul 8Clear——81°63°+2°
- ThursdayJul 9Clear——79°65°-2°
- FridayJul 10Partly Cloudy——79°63°0°
- SaturdayJul 11Overcast——79°64°0°
AQI 44 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.3 µg/m³ (AQI 55) with a 0.71 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 11.3 µg/m³ (AQI 55) with a 0.71 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.71
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:04 PM
- Moonset
- 11:08 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Oceanside at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: March 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 92054, 92056, 92057, 92058
16-Day Forecast — Oceanside
- Sun75°64°0%
- Mon75°64°1%
- Tue79°63°0%
- Wed81°63°0%
- Thu79°65°0%
- Fri79°63°0%
- Sat79°64°1%
- Sun80°67°3%
- Mon81°68°10%
- Tue81°68°11%
- Wed84°70°6%
- Thu88°72°13%
- Fri94°76°19%
- Sat95°76°14%
- Sun83°73°13%
- Mon87°72°9%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Oceanside
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
Oceanside's warmest month is August (~70°F mean) and its coldest is December (~53°F). Rainfall peaks in February (2.9 inches) and bottoms out in August (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 54° | 2.4″ | 3 |
| February | 54° | 2.9″ | 5 |
| March | 56° | 1.7″ | 3 |
| April | 58° | 0.9″ | 2 |
| May | 62° | 0.3″ | 1 |
| June | 66° | 0.1″ | 0 |
| July | 69° | 0.1″ | 0 |
| August | 70° | 0.0″ | 0 |
| September | 69° | 0.1″ | 0 |
| October | 64° | 0.6″ | 1 |
| November | 57° | 0.8″ | 2 |
| December | 53° | 2.0″ | 3 |
Regional context
Oceanside's climate, from NOAA NCEI 1991-2020 station normals, pairs 54°F Januarys with 69°F Julys — a 16°F swing. About 11.9 inches of precipitation falls over roughly 20 days a year.
Oceanside's moisture rides winter storm tracks: February brings 2.9 inches over 4.6 wet days, while August sees only 0.0 inches across 0.1 days in the dry warm season. That cool-season-wet pattern aligns Oceanside with places like Vista, CA, Camp Pendleton South, CA and Carlsbad, CA.
Oceanside rarely sees a hard freeze — its coldest month sits near 53°F — so planting spans most of the calendar. Heat peaks in August around 70°F, which confines cool-season crops to the shoulders of summer. Across Oceanside, elevation and tree cover drive a 4-7°F spread in Oceanside's overnight lows.
Similar climates: Vista, CA, Camp Pendleton South, CA, Carlsbad, CA, Bonsall, CA, Lake San Marcos, CA.
Naturalist notes
California poppies begin their spring bloom across Oceanside's coastal areas in late March.
Allen's hummingbirds return from their winter range in April, establishing territories along the coastline.
Frequently asked
- When does it freeze in Oceanside?
- In Oceanside, expect the last spring frost near mid-March; Oceanside's first autumn frost comes around mid-December.
- What is the rainy season in Oceanside?
- Rainfall in Oceanside peaks in February near 2.9 inches, out of about 12 inches annually.
- What is the warmest month in Oceanside?
- On average August tops the year in Oceanside at about 70°F.
- What is the coldest month in Oceanside?
- The coldest stretch in Oceanside falls in December, around 53°F on average.
- When can I start a vegetable garden in Oceanside?
- Hardy spring crops go in near mid-March in Oceanside; tender peppers and squash wait 10–14 days.
- How many rainy days does Oceanside get?
- Oceanside records around 20 days of measurable precipitation annually.
- What hardiness zone is Oceanside?
- With December around 53°F, Oceanside's zone reflects that minimum — the USDA ZIP map confirms Oceanside's band.
- What is the 10-day forecast for Oceanside?
- Oceanside'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 Oceanside?
- See this week's day-by-day rain chances for Oceanside in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Oceanside?
- Current conditions for Oceanside and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Oceanside forecast updated?
- The Oceanside forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Oceanside?
- Today's sunrise and sunset times for Oceanside 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 Oceanside?
- The next few days in Oceanside's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Oceanside, California, the hot-summer Mediterranean climate runs from about 54°F in January to 69°F in July, a 15°F seasonal range.
In a typical year Oceanside records about 12 inches of precipitation on around 20 days.
Oceanside's 15°F range, set by its 33.2°N position, drives frost timing and what thrives in Oceanside.
ZIP codes in Oceanside
- 92058
- 92054
- 92057
- 92056
- 92049
- 92051
- 92052
- 92068