Weather in Petaluma, California
Fog and sun in daily rhythm. Day 58 of spring. Read this microseason across nine climate regions →
Petaluma, CA
Saturday, May 16 at 11:59 PM
74
°
Clear
Feels like
68°
Humidity
41%
Wind
14 mph
Sunrise
5:58 AM
Sunset
8:15 PM
Petaluma, CA
Hour by hour · 24h
76°
4p
73°
5p
71°
6p
67°
7p
62°
8p
58°
9p
54°
10p
52°
11p
51°
12a
50°
1a
49°
2a
48°
3a
47°
4a
47°
5a
47°
6a
48°
7a
56°
8a
61°
9a
65°
10a
70°
11a
74°
12p
77°
1p
76°
2p
77°
3p
Petaluma, CA
7-day forecast
- TodayMay 16Overcast—75°52°
- SundayMay 17Overcast—74°48°
- MondayMay 18Clear—84°51°
- TuesdayMay 19Partly Cloudy—91°55°
- WednesdayMay 20Overcast—89°51°
- ThursdayMay 21Overcast—91°52°
- FridayMay 22Overcast—82°49°
Petaluma, CA
Next 24 hours · Mild now
Petaluma, CA
Anemometer · 24h winds · from true
From · True
WNW
291° · backing 8°
Direction
WNW
291°
Sustained
14
mph
Gust
21
mph
Peak 24h
29
avg 12
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
−24h−18h−12h−6hnow
Petaluma, CA
Air quality
38
AQI
Good
- PM 2.5
- 6.1 μg/m³
- PM 10
- 9.5 μg/m³
- NO₂
- 0.4 μg/m³
- Ozone
- 82.0 μg/m³
- UV Index
- 4.2 Moderate
Petaluma, CA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
12:30 PM
Sunrise
5:58 AM
Daylight
14h 17m
Sunset
8:15 PM
Civil dusk
3:46 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Petaluma, CA
The moon
New Moon
0% illuminated
- Moonrise
- 12:26 PM
- Moonset
- 2:34 AM
- In sign
- ♉︎ Taurus
Petaluma, CA
Microseason · 28 of 72
May 16–20
Fog and sun in daily rhythm
weather
Petaluma at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 5 (climatological average for this latitude)
- Microseason: 28 of 72, May 16–20
- Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.
Right now in the garden
Warm-season window is open
As of May 16, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.