California Tide Charts

High tide arrives at a different time at each station. Alameda reaches 6.59 ft at 1:44 pm; Alameda Creek reaches 6.2 ft at 2:11 pm; Alameda Naval Air Station reaches 6.55 ft at 1:38 pm. The table above lists the next high and the next low for all 192 California stations.

Gold Street Bridge, Alviso Slough, where high and low water differ by 9.9 ft today. The smallest of the 192 California stations with a range today is Snodgrass Slough at 2.4 ft. Range varies along a coast because the shape of a bay or estuary amplifies or damps the same ocean tide.

Yes, at Alameda Creek, Alameda Naval Air Station, Alcatraz Island and 92 others. The lowest is -0.34 ft at 10:46 pm. A minus tide is water below mean lower low water, the zero point for US predictions, and it exposes ground that is normally covered.

Not all alike. 188 are mixed semidiurnal and 4 are diurnal. Each station page classifies itself from its own predictions rather than from a regional rule, because the pattern changes along a single coast.

NOAA states roughly ten minutes on timing and half a foot on height for a reference station in ordinary weather. 66 of the 192 stations here are reference stations; the rest are subordinate, with times and heights derived from one by a published offset, so expect a little more spread. Weather is the bigger factor either way. A storm surge or a strong onshore wind can raise real water well above the prediction, which is astronomy only.