La Costa Beach Weather Forecast
- 73
- 80
Partly Sunny
- 72
- 79
Mostly Cloudy
- 68
- 74
Chance Rain Showers
- 66
- 72
Slight Chance Thunderstorms
- 66
- 74
Patchy Fog
- 66
- 75
Mostly Sunny
Today 16 Sep Malibu Coast
Low Clouds and fog in the morning then sunny. Highs in the upper 70s to mid 80s.
Tonight 16 Sep Malibu Coast
Clear in the evening then partly cloudy. Lows in the mid 60s to lower 70s.
La Costa Beach Temperature Statistics
September Temperature
Santa Monica, Santa Monica Municipal Airport (10.6 miles)
Lowest 11 September, 2025
63 °FAverage September
70.2 °FHighest 2 September, 2025
80.1 °F
Climate (2020–Present)
Santa Monica, Santa Monica Municipal Airport (10.6 miles)
Average Low 2020–2025
55.8 °FAverage 2020–2025
62.4 °FAverage High 2020–2025
69.6 °F