Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in San Marino, California

Fog and sun in daily rhythm. Day 59 of spring. Read this microseason across nine climate regions →

San Marino, CA
Sunday, May 17 at 1:06 AM
67
°
Mostly Clear
Feels like
65°
Humidity
69%
Wind
8 mph
Sunrise
5:49 AM
Sunset
7:47 PM
San Marino, CA
Hour by hour · 24h
72°
6p
68°
7p
66°
8p
62°
9p
60°
10p
60°
11p
60°
12a
58°
1a
57°
2a
59°
3a
59°
4a
61°
5a
59°
6a
60°
7a
61°
8a
62°
9a
64°
10a
64°
11a
65°
12p
65°
1p
69°
2p
72°
3p
73°
4p
71°
5p
L 57°H 73°
San Marino, CA
7-day forecast
  1. Today
    May 16
    Overcast
    76°59°
  2. Sunday
    May 17
    Light Drizzle
    75°57°
  3. Monday
    May 18
    Overcast
    81°54°
  4. Tuesday
    May 19
    Partly Cloudy
    85°63°
  5. Wednesday
    May 20
    Overcast
    83°66°
  6. Thursday
    May 21
    Overcast
    82°62°
  7. Friday
    May 22
    Clear
    82°64°
San Marino, CA
Anemometer · 24h winds · from true
NESW
From · True
WSW
240° · veering 18°
Direction
WSW
240°
Sustained
8
mph
Gust
10
mph
Peak 24h
13
avg 5
Beaufort · 3 · GENTLE 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 5 · pk 13 @ 5:00p
−24h−18h−12h−6hnow
Light breeze veering 18° from the wsw.
San Marino, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
988.3
-0.5 mb in 3h · falling · 29.18 inHg
Now
988.3
mb
3h
-0.5
mb
12h
-2.7
mb
24h
-2.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 987992
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
San Marino, CA
Air quality
57
AQI
Moderate
PM 2.5
14.5 μg/m³
PM 10
22.7 μg/m³
NO₂
5.4 μg/m³
Ozone
113.0 μg/m³
UV Index
0.7 Low
San Marino, CA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
12:23 PM
Sunrise
5:49 AM
Daylight
13h 58m
Sunset
7:47 PM
Civil dusk
3:16 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
San Marino, CA
The moon
New Moon
0% illuminated
Moonrise
1:06 PM
Moonset
3:17 AM
In sign
♉︎ Taurus
San Marino, CA
Microseason · 28 of 72
May 16–20

Fog and sun in daily rhythm

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

San Marino at a glance

  • Today vs. normal: 11°F below the seasonal normal for this latitude
  • Last frost: March 12 (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

Peak growing season

As of May 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.

ZIP codes in San Marino

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.