Santa Maria River Mouth Weather Forecast
- 64
- 85
Mostly Sunny
- 61
- 79
Partly Sunny
- 59
- 73
Mostly Cloudy
- 58
- 64
Breezy
- 58
- 65
Breezy
- 57
- 64
Partly Sunny
Today 9 Sep Santa Barbara County Central Coast Beaches
Partly cloudy with a 20 percent chance of Showers in the Morning, then sunny in the afternoon. Highs from the lower to mid 80s at the Beaches to the lower to mid 90s inland. Northwest Winds around 15 Mph in the afternoon.
Tonight 9 Sep Santa Barbara County Central Coast Beaches
Mostly clear in the evening then partly cloudy. Lows in the upper 50s and 60s. Northwest Winds around 15 Mph in the evening.
Santa Maria River Mouth Temperature Statistics
September Temperature
Santa Maria Public Airport/Capt G Allan Hancock Field (12.4 miles)
Lowest 1 September, 2026
52.6 °FAverage September
65.8 °FHighest 5 September, 2026
82.7 °F
Climate (2021–2026)
Santa Maria Public Airport/Capt G Allan Hancock Field (12.4 miles)
Average Low 2021–2026
48.3 °FAverage 2021–2026
57.6 °FAverage High 2021–2026
69.5 °F