Buena Park, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Buena Park weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——85°67°—
- MondayJul 6Mostly Clear——85°62°0°
- TuesdayJul 7Mostly Clear——90°64°+5°
- WednesdayJul 8Clear——93°71°+3°
- ThursdayJul 9Clear——89°73°-4°
- FridayJul 10Overcast——87°72°-2°
- SaturdayJul 11Overcast——84°72°-3°
AQI 61 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 18.4 µg/m³ (AQI 68) with a 0.82 fine-to-coarse ratio and 5 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
Ozone × UV × Sky
Ozone at AQI 32 now. With UV 12 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 50 around 1 PM.
- Present
- AQI 32
- UV peak
- 11.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 50
PM × Wind × Precip
PM2.5 at 18.4 µg/m³ (AQI 68) with a 0.82 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- 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
- 11:08 PM
- Moonset
- 11:11 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Buena Park at a glance
- Today vs. normal: 79°F — typical for the season
- Last frost: March 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 90620, 90621
16-Day Forecast — Buena Park
- Sun85°67°1%
- Mon85°62°0%
- Tue90°64°0%
- Wed93°71°0%
- Thu89°73°0%
- Fri87°72°0%
- Sat84°72°0%
- Sun88°71°1%
- Mon97°74°5%
- Tue96°77°9%
- Wed98°78°3%
- Thu101°82°10%
- Fri99°80°10%
- Sat95°78°10%
- Sun97°77°19%
- Mon99°77°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Buena Park
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
In Buena Park, August runs warmest near 73°F and January coldest around 54°F, while February is the wettest month (2.5 inches) and August the driest (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 54° | 2.3″ | 9 |
| February | 56° | 2.5″ | 8 |
| March | 58° | 2.0″ | 9 |
| April | 61° | 0.9″ | 7 |
| May | 64° | 0.3″ | 4 |
| June | 68° | 0.0″ | 2 |
| July | 72° | 0.1″ | 1 |
| August | 73° | 0.0″ | 0 |
| September | 72° | 0.0″ | 2 |
| October | 68° | 0.3″ | 3 |
| November | 60° | 1.1″ | 6 |
| December | 54° | 1.8″ | 7 |
Regional context
By the nearest station's NOAA NCEI 1991-2020 normals, Buena Park sees 54°F Januarys and 72°F Julys, a 18°F range, plus around 11.3 inches of precipitation across 57 days.
Cool-season fronts carry Buena Park's rain: February logs 2.5 inches on 7.6 days, against August's 0.0 inches on 0.2 — winter does the heavy lifting in Buena Park. That cool-season-wet pattern aligns Buena Park with places like La Palma, CA, La Mirada, CA and Cypress, CA.
Buena Park rarely sees a hard freeze — its coldest month sits near 54°F — so planting spans most of the calendar. Heat peaks in August around 73°F, which confines cool-season crops to the shoulders of summer. Buena Park's coastal lots stay 4-7°F milder overnight than Buena Park's inland parcels.
Similar climates: La Palma, CA, La Mirada, CA, Cypress, CA, Cerritos, CA, Stanton, CA.
Frequently asked
- When does it freeze in Buena Park?
- Buena Park's last spring frost lands near mid-March, and in Buena Park the first fall frost follows around mid-December.
- What is the rainy season in Buena Park?
- Buena Park sees its heaviest rain in February (around 2.5 inches), part of roughly 11 inches a year.
- What is the warmest month in Buena Park?
- Buena Park peaks in August, when the mean runs near 73°F.
- What is the coldest month in Buena Park?
- January is Buena Park's coldest month, averaging about 54°F.
- When can I start a vegetable garden in Buena Park?
- Around mid-March, start frost-hardy crops in Buena Park; tomatoes and basil belong a fortnight later.
- How many rainy days does Buena Park get?
- Expect roughly 57 wet days a year in Buena Park.
- What hardiness zone is Buena Park?
- Since January in Buena Park averages 54°F, Buena Park's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Buena Park?
- Buena Park'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 Buena Park?
- See this week's day-by-day rain chances for Buena Park in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Buena Park?
- Current conditions for Buena Park and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Buena Park forecast updated?
- The Buena Park forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Buena Park?
- Today's sunrise and sunset times for Buena Park 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 Buena Park?
- The next few days in Buena Park's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The hot-summer Mediterranean climate of Buena Park, California carries typical Januarys near 54°F and Julys around 72°F — 18°F of seasonal travel.
Buena Park sees close to 11 inches of precipitation annually, falling across some 57 wet days.
Buena Park sits at 33.9°N; that 18°F seasonal swing frames planting windows and frost dates across Buena Park.
ZIP codes in Buena Park
- 90621
- 90620
- 90622
- 90624