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Belvedere, California Weather

Bay laurel fragrance sweetens shade. Day 90 of spring. Read this microseason across nine climate regions →

Belvedere weather forecast — hour by hour, 7-day outlook, NOAA radar

Belvedere, CA
Tuesday, June 16 at 6:15 PM
63
°
Clear
Feels like
59°
Humidity
82%
Wind
15 mph
Sunrise
10:47 PM
Sunset
1:34 PM
Belvedere, CA
Hour by hour · 24h
24-Hour ForecastBelvedere, CA: 24-hour forecast. Temperatures range from 57 to 64 degrees Fahrenheit.
L 57°H 64°
Belvedere, CA
7-day forecast
  1. Today
    Jun 16
    Foggy
    —
    —
    70°54°—
  2. Wednesday
    Jun 17
    Foggy
    —
    —
    64°55°-6°
  3. Thursday
    Jun 18
    Foggy
    —
    —
    64°54°0°
  4. Friday
    Jun 19
    Overcast
    —
    —
    65°57°+1°
  5. Saturday
    Jun 20
    Overcast
    —
    —
    66°52°+1°
  6. Sunday
    Jun 21
    Overcast
    —
    —
    67°52°+1°
  7. Monday
    Jun 22
    Mostly Clear
    —
    —
    67°53°0°
Belvedere, CA
Next 24 hours · Cool now
55°61°67°12p6p12a6anow 63°high 64°low 57°
Belvedere, CA
Anemometer · 24h winds · from true
NESW
From · True
WSW
255° · backing 11°
Direction
WSW
255°
Sustained
15
mph
Gust
24
mph
Peak 24h
24
avg 9
Beaufort · 4 · MOD BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 9 · pk 24
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2714SUSTGUST
−24h−18h−12h−6hnow
Sustained 15 mph with gusts pulsing to 24 — flags snap, branches bend.
Belvedere, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1011.0
-1.4 mb in 3h · falling · 29.85 inHg
Now
1011.0
mb
3h
-1.4
mb
12h
-2.2
mb
24h
-2.7
mb
Regime · CHANGE
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 1011–1014
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW1014.31011.11011.1
−24h−18h−12h−6hnow
Pressure slipping through the change line — wetter air on the way.
Belvedere, CA
Air quality
43
AQI
Good
→+4 in 6h

AQI 43 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 15.1 µg/m³ (AQI 62), ratio 0.69 with 15 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.

PM 2.5DRIVERModerate
15.1μg/m³
PM 10Good
22μg/m³
NO₂Good
4μg/m³
OzoneModerate
80μg/m³
UV IndexLow
1.3

What's driving it

Ozone × UV × Sky

Ozone at AQI 38 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

Present
AQI 38
UV peak
1.0 at earlier today
Sky at peak
overcast
Projected peak
AQI 38

PM × Wind × Precip

PM2.5 at 15.1 µg/m³ (AQI 62), ratio 0.69 with 15 mph wind — characteristic of long-range haze transport rather than a local source.

PM2.5/PM10
0.69
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).

7-DAY AQI TREND50100WEDTHUFRISATSUNMONTUEWED7-DAY PM2.5 TREND · μg/m³300
Belvedere, CA
Sky cover · visibility · 24h
Cloud cover
13%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
32.0mi
UNLIMITED
43 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
01:15 UTC · Belvedere, CA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
01:15 UTC · Belvedere, CA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Belvedere, CA
Satellite · infrared · animated
Belvedere, CA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Belvedere, CA
Almanac · Tuesday, June 16
A summer fog for fair, a winter fog for rain.
Civil dawn
5:17 AM
Sunrise
10:47 PM
Daylight
14h 47m
Sunset
1:34 PM
Civil dusk
9:06 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Belvedere, CA
The moon
Waxing Crescent
5% illuminated
Moonrise
8:24 AM
Moonset
10:44 PM
In sign
♋︎ Cancer
Belvedere, CA
Microseason
Jun 16–20

Bay laurel fragrance sweetens shade

bird
Jan 146% of the yearDec 31

Read this microseason across nine climate regions →

Belvedere at a glance

  • Today vs. normal: 14°F below the seasonal normal for this latitude
  • Last frost: April 3 (climatological average for this latitude)
  • Microseason: Jun 16–20
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Belvedere

  1. Tue70°54°1%
  2. Wed64°55°1%
  3. Thu64°54°8%
  4. Fri65°57°9%
  5. Sat66°52°6%
  6. Sun67°52°1%
  7. Mon67°53°1%
  8. Tue70°53°1%
  9. Wed71°54°1%
  10. Thu74°53°1%
  11. Fri74°51°0%
  12. Sat65°53°0%
  13. Sun64°53°0%
  14. Mon66°54°0%
  15. Tue69°56°0%
  16. Wed74°56°3%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of June 17, 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.

January 1–5: New year in coastal mist.January 6–10: Hills hold the winter cold.January 11–15: Light lengthens over wet earth.January 16–20: The green pulse quickens.January 21–25: Spring green spreads inland.January 26–31: Winter's grip releases.February 1–5: Fog lifts, flowers open.February 6–10: Blooms erupt across chaparral.February 11–15: Winter blooms at their peak.February 16–20: Rivers recede, flowers spread.February 21–25: Earth warms, flowers rush upslope.February 26–28: Spring advances on cool winds.March 1–5: Grass and trees bud and break.March 6–10: Insects wake and feed.March 11–15: Blossoms crown the hillsides.March 16–20: Monarch chrysalis emergence.March 21–25: Light overtakes dark at equinox.March 26–31: California poppy ablaze.April 1–5: Spring rain feeds the seedlings.April 6–10: Warblers flood the understory.April 11–15: Allen's hummingbirds in courtship dives.April 16–20: Coastal fog settles; sun breaks midday.April 21–25: Oak canopies full and green.April 26–30: Chaparral awakens after spring rains.May 1–5: Coastal wildflowers at their peak.May 6–10: Gray whales complete their migration north.May 11–15: Redwood coast in cool shade.May 16–20: Fog and sun in daily rhythm.May 21–25: Summer approaches; hills turn gold.May 26–31: Dry season begins; tule fog in valleys.June 1–5: Coastal fog thickens at dawn.June 6–10: California poppies fade as heat rises.June 11–15: Summer solstice light stretched thin.June 16–20: Bay laurel fragrance sweetens shade.June 21–25: Longest daylight, driest air.June 26–30: Fog banks mask the turning tide.July 1–5: Summer heat deepens across the valleys.July 6–10: Warm winds drive dryness inland.July 11–15: Pacific high settles in firmly.July 16–20: Young hawks take to the thermals.July 21–25: Peak fire season, peak heat.July 26–31: Chaparral poised for ignition.August 1–5: August begins in scorching stillness.August 6–10: Autumn's first cool breath arrives.August 11–15: Cool winds signal the turning year.August 16–20: Evening cicada chorus.August 21–25: Marine layer descent.August 26–31: Monarch staging begins.September 1–5: Fire season intensity.September 6–10: Dew on drying grasses.September 11–15: Raptor passage begins.September 16–20: Equinox descent.September 21–25: Ceanothus blooms again.September 26–30: Insects retreat below.October 1–5: Creeks begin to whisper.October 6–10: Santa Ana wind season.October 11–15: Wildflower anticipation.October 16–20: Chaparral embers glow.October 21–25: First atmospheric river looms.October 26–31: Rains return at last.November 1–5: Coast live oak leaves turn amber.November 6–10: California lilac blooms in winter light.November 11–15: First rain greens the chaparral.November 16–20: Coastal fog thickens as storms approach.November 21–25: Thanksgiving rains swell the valleys.November 26–30: Autumn's last breath yields to winter.December 1–5: December arrives, storms accelerate.December 6–10: Winter solstice season intensifies.December 11–15: Deep winter: rivers at flood stage.December 16–20: Winter salmon runs peak in northern rivers.December 21–25: Winter solstice: the sun turns.December 26–31: Year's end in wind and rain.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · June 16–20

Bay laurel fragrance sweetens shade

In cooler coastal canyons, bay laurel foliage releases its sharp, anise-like scent as temperatures climb.

Day 168 of 365 · Wedge 34 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

In Belvedere, September runs warmest near 63°F and January coldest around 52°F, while December is the wettest month (4.8 inches) and July the driest (0.0 inches).

MonthMean tempPrecipRainy days
January52°4.4″8
February54°4.4″8
March56°3.1″7
April56°1.6″4
May58°0.7″2
June60°0.2″1
July60°0.0″0
August62°0.1″0
September63°0.1″0
October62°0.9″2
November57°2.6″5
December53°4.8″8

Regional context

Belvedere swings from 52°F in January to 60°F in July (8°F) per NOAA NCEI 1991-2020 normals; precipitation in Belvedere runs about 22.9 inches on roughly 45 measurable days.

Belvedere's moisture rides winter storm tracks: December brings 4.8 inches over 8.0 wet days, while July sees only 0.0 inches across 0.0 days in the dry warm season. It is a winter-storm rhythm Belvedere shares with places like Tiburon, CA, Sausalito, CA and Marin City, CA.

With a coldest-month mean of 52°F, Belvedere stays mostly frost-free and grows year-round. The September peak near 63°F is Belvedere's real limit, pushing cool-season vegetables to spring and fall. Across Belvedere, elevation and tree cover drive a 4-7°F spread in Belvedere's overnight lows.

Similar climates: Tiburon, CA, Sausalito, CA, Marin City, CA, Strawberry, CA, Alto, CA.

Frequently asked

When does it freeze in Belvedere?
Belvedere's last spring frost lands near mid-April, and in Belvedere the first fall frost follows around mid-November.
What is the rainy season in Belvedere?
Belvedere sees its heaviest rain in December (around 4.8 inches), part of roughly 23 inches a year.
What is the warmest month in Belvedere?
September is Belvedere's warmest month, averaging about 63°F.
What is the coldest month in Belvedere?
Belvedere bottoms out in January, with a mean near 52°F.
When can I start a vegetable garden in Belvedere?
Time tomatoes in Belvedere for two weeks after mid-April; peas and greens start at Belvedere's frost line.
How many rainy days does Belvedere get?
Belvedere records around 45 days of measurable precipitation annually.
What hardiness zone is Belvedere?
Belvedere's USDA zone comes from its January mean (52°F); enter the ZIP on the USDA lookup for the number.
What is the 10-day forecast for Belvedere?
Belvedere'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 Belvedere?
See this week's day-by-day rain chances for Belvedere in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Belvedere?
Current conditions for Belvedere and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Belvedere forecast updated?
The Belvedere forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Belvedere?
Day length in Belvedere peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Belvedere?
The next few days in Belvedere's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Belvedere, California occupies a hot-summer Mediterranean zone, with January means near 52°F and July around 60°F — a 8°F swing.

Yearly precipitation in Belvedere totals around 23 inches, spread over about 45 days of rain or snow.

The 8°F gap between Belvedere's summer and winter, at 37.9°N, shapes Belvedere's frost calendar.

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ZIP codes in Belvedere

  • 94920

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.