Cayucos, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cayucos, a community in San Luis Obispo County, California.
This Afternoon
68°F
Mostly Sunny
Mostly sunny, with a high near 68. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
7-day forecast for Cayucos
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Mostly Sunny | 10 to 15 mph WNW | 0% |
| Tonight | 57°F | Mostly Cloudy | 5 to 10 mph NW | 0% |
| Sunday | 66°F | Mostly Cloudy | 5 to 10 mph WNW | 1% |
| Sunday Night | 57°F | Mostly Cloudy | 5 to 10 mph WNW | 3% |
| Monday | 62°F | Partly Sunny | 5 to 15 mph W | 2% |
| Monday Night | 56°F | Mostly Cloudy | 5 to 10 mph NW | 1% |
| Tuesday | 65°F | Sunny | 5 to 10 mph NW | 0% |
| Tuesday Night | 58°F | Partly Cloudy | 0 to 10 mph NW | 0% |
| Wednesday | 77°F | Sunny | 5 to 10 mph NNW | 0% |
| Wednesday Night | 62°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 61°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph SSW | 1% |
| Friday Night | 59°F | Partly Cloudy | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Cayucos (35.440, -120.890). Updated through the day.
Growing snapshot for Cayucos
Last spring frost
Jan 19
First fall frost
Jan 14
Growing season
365 days
Hardiness zone
10a
More local growing data for Cayucos: nearby ZIP 93430 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Morro Bay Fire Dept, Ca (9.9 mi from Cayucos). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.