Bay Point, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Bay Point weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Mostly Clear——77°56°—
- MondayJul 6Overcast——76°54°-1°
- TuesdayJul 7Overcast——82°54°+6°
- WednesdayJul 8Clear——88°56°+6°
- ThursdayJul 9Clear——90°60°+2°
- FridayJul 10Overcast——93°59°+3°
- SaturdayJul 11Overcast——93°65°0°
AQI 30 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.2 µg/m³, PM10 at 8.3 µg/m³ — typical background levels with no transport signature.
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 6.2 µg/m³, PM10 at 8.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.75
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:27 PM
- Moonset
- 11:26 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Bay Point at a glance
- Today vs. normal: 73°F — typical for the season
- Last frost: April 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Bay Point
- Sun77°56°0%
- Mon76°54°0%
- Tue82°54°0%
- Wed88°56°0%
- Thu90°60°0%
- Fri93°59°0%
- Sat93°65°0%
- Sun81°66°1%
- Mon97°70°3%
- Tue98°69°4%
- Wed98°67°1%
- Thu99°65°2%
- Fri102°71°3%
- Sat96°68°3%
- Sun92°64°0%
- Mon92°61°0%
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 | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Bay Point peaks at about 70°F in July and bottoms near 49°F in January; January brings the heaviest rain (3.5 inches) and July the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.5″ | 13 |
| February | 51° | 3.3″ | 12 |
| March | 53° | 2.7″ | 13 |
| April | 58° | 1.4″ | 9 |
| May | 64° | 0.5″ | 4 |
| June | 68° | 0.0″ | 1 |
| July | 70° | 0.0″ | 1 |
| August | 70° | 0.0″ | 1 |
| September | 69° | 0.1″ | 1 |
| October | 64° | 0.6″ | 4 |
| November | 55° | 2.2″ | 8 |
| December | 49° | 3.2″ | 12 |
Regional context
Per NOAA NCEI 1991-2020 normals, Bay Point runs from a 49°F January mean to 70°F in July, a 22°F seasonal spread, with near 17.5 inches of precipitation across about 79 wet days.
Precipitation in Bay Point peaks in the cool season: January averages 3.5 inches across 13.3 storm-fed days, while July bottoms out at 0.0 inches over just 0.9 rainy days. That cool-season-wet pattern aligns Bay Point with places like Clyde, CA, Pittsburg, CA and Concord, CA.
With a coldest-month mean of 49°F, Bay Point stays mostly frost-free and grows year-round. The July peak near 70°F is Bay Point's real limit, pushing cool-season vegetables to spring and fall. Within Bay Point, low or inland lots lose 3-5°F overnight versus Bay Point's coastal ground.
Similar climates: Clyde, CA, Pittsburg, CA, Concord, CA, Clayton, CA, Pacheco, CA.
Frequently asked
- When does it freeze in Bay Point?
- Frost typically leaves Bay Point by mid-April and returns to Bay Point near mid-November.
- What is the rainy season in Bay Point?
- Bay Point sees its heaviest rain in January (around 3.5 inches), part of roughly 18 inches a year.
- What is the warmest month in Bay Point?
- The warmest stretch in Bay Point comes in July, around 70°F on average.
- What is the coldest month in Bay Point?
- On average January is the chilliest month in Bay Point, about 49°F.
- When can I start a vegetable garden in Bay Point?
- Time tomatoes in Bay Point for two weeks after mid-April; peas and greens start at Bay Point's frost line.
- How many rainy days does Bay Point get?
- Expect roughly 79 wet days a year in Bay Point.
- What hardiness zone is Bay Point?
- Bay Point sits in the USDA zone set by January lows near 49°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Bay Point?
- Bay Point'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 Bay Point?
- See this week's day-by-day rain chances for Bay Point in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Bay Point?
- Current conditions for Bay Point and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Bay Point forecast updated?
- The Bay Point forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Bay Point?
- Today's sunrise and sunset times for Bay Point 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 Bay Point?
- The next few days in Bay Point's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Bay Point, California occupies a hot-summer Mediterranean zone, with January means near 49°F and July around 70°F — a 21°F swing.
Yearly precipitation in Bay Point totals around 18 inches, spread over about 79 days of rain or snow.
Latitude 38.0°N gives Bay Point its 21°F swing, and with it the rhythm of Bay Point's growing season.
ZIP codes in Bay Point
- 94565