Lakeville (Petaluma River) and Golden Gate tides, with sun and moon. All times Pacific.
Shading: light = daylight (sunrise to sunset), purple = civil twilight (sun within 6° below the horizon), dark = night. The faint disc behind each day is the moon phase at noon. Heights are feet above MLLW, as in a NOAA tide table. Golden Gate uses NOAA's 6-minute predictions; Lakeville is a subordinate station that publishes only highs and lows, so its curve is cosine-interpolated between them. Data: NOAA CO-OPS predictions. Not for navigation.