Cayucos State Beach Weather Forecast
- 52
- 64
Sunny
- 54
- 64
Sunny
- 54
- 62
Partly Sunny
- 53
- 59
Patchy Fog
- 55
- 64
Patchy Fog
- 57
- 63
Patchy Fog
- 54
- 62
Mostly Sunny
Today 11 Dec San Luis Obispo County Beaches
Sunny. Highs in the upper 60s to mid 70s. Northeast Winds around 15 Mph in the morning.
Tonight 11 Dec San Luis Obispo County Beaches
Clear. Lows in the mid 40s to lower 50s. Northeast Winds around 15 Mph after midnight.
Cayucos State Beach Temperature Statistics
December Temperature
San Luis Obispo, San Luis Obispo County-Mc Chesney Field (20.5 miles)
Lowest 4 December, 2025
37 °FAverage December
56.6 °FHighest 9 December, 2025
80.1 °F
Climate (2020–Present)
San Luis Obispo, San Luis Obispo County-Mc Chesney Field (20.5 miles)
Average Low 2020–2025
50 °FAverage 2020–2025
60.3 °FAverage High 2020–2025
72.8 °F