Half Moon Bay Tide Chart (CA)

Half Moon Bay (CA) tide times, Jul 29 – Aug 6

Day	Time	Tide	Height
Wed Jul 29	5:43 AM	Low	-0.5 ft (-0.16 m)
	12:27 PM	High	4.4 ft (1.33 m)
	5:07 PM	Low	2.7 ft (0.83 m)
	11:00 PM	High	6.0 ft (1.82 m)
Thu Jul 30	6:14 AM	Low	-0.4 ft (-0.13 m)
	12:55 PM	High	4.5 ft (1.37 m)
	5:48 PM	Low	2.6 ft (0.79 m)
	11:37 PM	High	5.8 ft (1.76 m)
Fri Jul 31	6:43 AM	Low	-0.2 ft (-0.07 m)
	1:21 PM	High	4.7 ft (1.42 m)
	6:31 PM	Low	2.4 ft (0.74 m)
Sat Aug 1	12:17 AM	High	5.5 ft (1.66 m)
	7:10 AM	Low	0.1 ft (0.03 m)
	1:47 PM	High	4.8 ft (1.47 m)
	7:17 PM	Low	2.2 ft (0.68 m)
Sun Aug 2	1:01 AM	High	5.1 ft (1.54 m)
	7:37 AM	Low	0.5 ft (0.16 m)
	2:13 PM	High	5.0 ft (1.53 m)
	8:07 PM	Low	2.0 ft (0.60 m)
Mon Aug 3	1:51 AM	High	4.6 ft (1.40 m)
	8:05 AM	Low	1.0 ft (0.31 m)
	2:42 PM	High	5.2 ft (1.60 m)
	9:04 PM	Low	1.6 ft (0.50 m)
Tue Aug 4	2:49 AM	High	4.1 ft (1.25 m)
	8:35 AM	Low	1.5 ft (0.47 m)
	3:16 PM	High	5.5 ft (1.66 m)
	10:14 PM	Low	1.3 ft (0.39 m)
Wed Aug 5	4:06 AM	High	3.6 ft (1.10 m)
	9:12 AM	Low	2.1 ft (0.64 m)
	4:00 PM	High	5.7 ft (1.73 m)
	11:31 PM	Low	0.8 ft (0.25 m)
Thu Aug 6	5:47 AM	High	3.4 ft (1.03 m)
	10:01 AM	Low	2.6 ft (0.78 m)
	4:55 PM	High	5.9 ft (1.80 m)

Half Moon Bay runs mixed-semidiurnal water: two highs and two lows daily, unequal by ~1.3 ft between successive highs this week. An average swing here this week moves 3.5 ft of water. A 6.4 ft swing — Half Moon Bay's biggest this table — runs from the 11:00 PM high on Wed Jul 29 into the next low. Half Moon Bay tops out at 6.0 ft (Wed Jul 29 11:00 PM) and bottoms at -0.5 ft (Wed Jul 29 5:43 AM).

Moving-water windows — Half Moon Bay

Half Moon Bay mid-swing times below mark predicted peak flow on its 3.5 ft average cycle (why moving water matters):

• Wed Jul 29: 9:05 AM — 4.9 ft flood · 2:47 PM — 1.6 ft ebb · 8:03 PM — 3.2 ft flood
• Thu Jul 30: 2:37 AM — 6.4 ft ebb · 9:34 AM — 4.9 ft flood · 3:21 PM — 1.9 ft ebb · 8:42 PM — 3.2 ft flood

Half Moon Bay numbers: NOAA CO-OPS #9414131 (Pillar Point Harbor, Half Moon Bay), 6.4 km off Half Moon Bay center; this open-water pick beat 7 closer-in candidates. Onshore wind or a storm can push real water at Half Moon Bay above the 6.0 ft predicted peak; offshore wind can hold it under. All Half Moon Bay times station-local, refreshed 2026-07-29.