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Weather in Arroyo Grande, CA · National Weather Service + NOAA

Arroyo Grande has milder winters than most of California

Arroyo Grande has warm winters and cool summers, with very little rain. A typical July afternoon reaches 65°, a January night drops to 48°, and snow is almost unheard of. In November, a normal day reaches 66° and a normal night drops to 51°.

Winter 62°/48°Spring 63°/50°Summer 65°/56°Fall 67°/54°
Right now
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Sunrise 6:25 am · sunset 5:06 pm

Getting the latest forecast from the National Weather Service…

What stands out about Arroyo Grande’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Milder winters than most of CaliforniaJanuary nights average 48°, milder than 1,561 of 1,618 California towns.It hardly ever freezesOnly 15% of years see a night at 32° or below.Cool summersJuly afternoons average 65°, cooler than 100% of U.S. towns.Snow is rareAbout 0.1 inches in a normal year, so most winters see none.
A normal year

Where today sits in Arroyo Grande’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
62° / 48°
Snow is rare
Spring
63° / 50°
Frost is rare by spring
Summer
65° / 56°
1 days reach 90° in a normal year
Fall now
67° / 54°
Mild well into the fall
Best months to be outside
MarAprMayJunJulAugSepOctNov
Highs of 62–84° and lows of 40° or more
How much snow does Arroyo Grande get?Almost none.When is it wettest?January, with 3.4 inches.Is it warmer than it used to be?+2.0° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Arroyo Grande.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Arroyo Grande itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Morro Bay Fire Dept, CA (22 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.