Irvine, California Weather
California lilac blooms in winter light. Day 50 of autumn. Read this microseason across nine climate regions →
Irvine weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:29 PM PST · Open-Meteo
- TodayNov 10Clear——85°61°—
- WednesdayNov 11Clear——82°61°-3°
- ThursdayNov 12Overcast26%—78°61°-4°
- FridayNov 13Light Showers67%0.01″71°64°-7°
- SaturdayNov 14Showers67%0.26″68°63°-3°
- SundayNov 15Overcast27%—70°64°+2°
- MondayNov 16Drizzle50%0.01″66°62°-4°
Air quality now AQI 42 · Good
AQI 42 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 65 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 65 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29.
- Present
- AQI 65
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 5.2 µg/m³ (AQI 29), ratio 0.68 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.68
- 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).
When the wind is in the west, the weather is at its best.
- Moonrise
- 7:54 AM
- Moonset
- 5:01 PM
- In sign
- ♐︎ Sagittarius
California lilac blooms in winter light
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Irvine at a glance
- Today vs. normal: Today averages 73°F (high 85°F, low 61°F), 7°F above the 66°F normal for Nov 10
- Last frost: None in most years — 32°F in 4% of 1991–2020 years (NOAA station 7 km away)
- Microseason: Nov 6–10
- Planting calendar: November — plant lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash; harvest lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Irvine
- Tue85°61°0%
- Wed82°61°0%
- Thu78°61°26%
- Fri71°64°67%
- Sat68°63°67%
- Sun70°64°27%
- Mon66°62°50%
- Tue68°59°40%
- Wed68°58°33%
- Thu68°61°34%
- Fri71°61°30%
- Sat72°61°11%
- Sun73°58°13%
- Mon75°61°13%
- Tue73°62°6%
- Wed73°61°11%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Irvine
Interactive wind and temperature map centered on Irvine — it loads in your browser. Open the full weather map.
Right now in the garden
Year-round growing
As of November 10, sowing here runs through the year. Freezes are uncommon, so there is no frost date to plan around; heat and rainfall set the calendar instead. This city's planting calendar for November: plant lettuce, peas, spinach, radishes, tomatoes, peppers, beans, and squash; harvest lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, and winter squash.
Sun & seasons in Irvine
Irvine sits in Orange County, where the year’s longest day runs 14h 23m of daylight and its shortest just 9h 55m — a swing of +4h 29m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Los Angeles, the state’s largest city, lies about 47 miles to the NW. The nearest town Irvine tracks is Santa Ana, roughly 7 miles to the WNW.
Air quality in Irvine
Air quality in Irvine’s county has held roughly steady since 2020; its cleanest year on record was 2023 (median AQI 52). See the full air-quality history for Irvine.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | lettuce, peas, spinach, radishes | lettuce, peas, spinach, radishes |
| February | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| March | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| May | lettuce, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| July | lettuce, peas, tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| September | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| October | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| November | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
| December | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, summer squash, winter squash |
A year in weather
August is Irvine's warmest stretch (~77°F) and December its coldest (~59°F); precipitation crests in January at 3.2 inches and ebbs in August to 0.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 60° | 3.2″ | 5 |
| February | 60° | 3.0″ | 5 |
| March | 63° | 1.8″ | 3 |
| April | 65° | 0.7″ | 2 |
| May | 68° | 0.4″ | 1 |
| June | 72° | 0.1″ | 0 |
| July | 76° | 0.1″ | 0 |
| August | 77° | 0.0″ | 0 |
| September | 76° | 0.1″ | 0 |
| October | 71° | 0.6″ | 1 |
| November | 65° | 1.0″ | 2 |
| December | 59° | 2.4″ | 4 |
Regional context
Similar climates Tustin, CA, Laguna Woods, CA, Lake Forest, CA
By the nearest station's NOAA NCEI 1991-2020 normals, Irvine sees 60°F Januarys and 76°F Julys, a 16°F range, plus around 13.5 inches of precipitation across 23 days.
Irvine's moisture rides winter storm tracks: January brings 3.2 inches over 4.5 wet days, while August sees only 0.0 inches across 0.0 days in the dry warm season. That groups Irvine with places like Tustin, CA, Laguna Woods, CA and Lake Forest, CA on the same cool-season storm track.
Freezes are uncommon in Irvine, where the coldest month averages 59°F; cool-season crops grow fall through spring. Summer heat in August (about 77°F) is the binding constraint, not cold. Irvine's open lawns chill fastest on clear nights.
Similar climates: Tustin, CA, Laguna Woods, CA, Lake Forest, CA, North Tustin, CA, Newport Beach, CA.
Frequently asked
- When does it freeze in Irvine?
- Most years Irvine doesn't freeze: the nearest NOAA station reached 32°F in 4% of 1991–2020 years, so Irvine has no reliable frost date.
- What is the rainy season in Irvine?
- January is the wettest month in Irvine, about 3.2 inches on average; the year totals roughly 14 inches.
- What is the warmest month in Irvine?
- Irvine peaks in August, when the mean runs near 77°F.
- What is the coldest month in Irvine?
- December is Irvine's coldest month, averaging about 59°F.
- When can I start a vegetable garden in Irvine?
- Any season works in Irvine: without a reliable freeze, Irvine's heat, not frost, decides when greens and tomatoes do best.
- How many rainy days does Irvine get?
- Irvine records around 23 days of measurable precipitation annually.
- What hardiness zone is Irvine?
- With December around 59°F, Irvine's zone reflects that minimum — the USDA ZIP map confirms Irvine's band.
- What is the 10-day forecast for Irvine?
- Irvine'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 Irvine?
- See this week's day-by-day rain chances for Irvine in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Irvine?
- Current conditions for Irvine and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Irvine forecast updated?
- The Irvine forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Irvine?
- Today's sunrise and sunset times for Irvine 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 Irvine?
- The next few days in Irvine's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Irvine sits at 33.7°N; its climate zone is hot-summer Mediterranean (Köppen approximation).
ZIP codes in Irvine
- 92602
- 92603
- 92604
- 92606
- 92612
- 92614
- 92616
- 92617
- 92618
- 92619
- 92620
- 92650
- 92697
- 92698