Half Moon Bay Tide Chart (CA)

Half Moon Bay (CA) tide times, Sep 5 – Sep 13

Day	Time	Tide	Height
Sat Sep 5	12:24 AM	Low	0.1 ft (0.02 m)
	7:43 AM	High	3.7 ft (1.14 m)
	11:14 AM	Low	3.3 ft (1.01 m)
	5:41 PM	High	5.9 ft (1.79 m)
Sun Sep 6	1:32 AM	Low	-0.2 ft (-0.06 m)
	8:44 AM	High	4.1 ft (1.24 m)
	12:48 PM	Low	3.2 ft (0.97 m)
	6:56 PM	High	6.0 ft (1.83 m)
Mon Sep 7	2:32 AM	Low	-0.5 ft (-0.14 m)
	9:24 AM	High	4.4 ft (1.34 m)
	2:06 PM	Low	2.8 ft (0.85 m)
	8:05 PM	High	6.2 ft (1.88 m)
Tue Sep 8	3:21 AM	Low	-0.6 ft (-0.17 m)
	9:59 AM	High	4.8 ft (1.45 m)
	3:10 PM	Low	2.2 ft (0.68 m)
	9:07 PM	High	6.2 ft (1.90 m)
Wed Sep 9	4:04 AM	Low	-0.5 ft (-0.15 m)
	10:31 AM	High	5.1 ft (1.55 m)
	4:03 PM	Low	1.7 ft (0.52 m)
	10:01 PM	High	6.2 ft (1.88 m)
Thu Sep 10	4:43 AM	Low	-0.3 ft (-0.08 m)
	11:02 AM	High	5.4 ft (1.64 m)
	4:52 PM	Low	1.2 ft (0.37 m)
	10:51 PM	High	5.9 ft (1.81 m)
Fri Sep 11	5:19 AM	Low	0.1 ft (0.04 m)
	11:34 AM	High	5.6 ft (1.71 m)
	5:39 PM	Low	0.9 ft (0.26 m)
	11:41 PM	High	5.6 ft (1.70 m)
Sat Sep 12	5:54 AM	Low	0.7 ft (0.20 m)
	12:05 PM	High	5.7 ft (1.74 m)
	6:26 PM	Low	0.6 ft (0.19 m)
Sun Sep 13	12:32 AM	High	5.1 ft (1.57 m)
	6:27 AM	Low	1.2 ft (0.37 m)
	12:37 PM	High	5.7 ft (1.74 m)
	7:12 PM	Low	0.5 ft (0.16 m)

Half Moon Bay is semidiurnal — paired highs (3.7 and 5.9 ft today) and paired lows of similar size. An average swing here this week moves 4.4 ft of water. A 6.8 ft swing — Half Moon Bay's biggest this table — runs from the 9:07 PM high on Tue Sep 8 into the next low. Half Moon Bay tops out at 6.2 ft (Tue Sep 8 9:07 PM) and bottoms at -0.6 ft (Tue Sep 8 3:21 AM).

Moving-water windows — Half Moon Bay

Half Moon Bay mid-swing times below mark predicted peak flow on its 4.4 ft average cycle (why moving water matters):

• Sat Sep 5: 4:03 AM — 3.7 ft flood · 9:28 AM — 0.4 ft ebb · 2:27 PM — 2.6 ft flood · 9:36 PM — 6.1 ft ebb
• Sun Sep 6: 5:08 AM — 4.3 ft flood · 10:46 AM — 0.9 ft ebb · 3:52 PM — 2.8 ft flood · 10:44 PM — 6.5 ft ebb

Tide charts near Half Moon Bay

• Santa Cruz tide chart~73 km
• Bodega Bay tide chart~103 km
• Pismo Beach tide chart~302 km

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 6.2 ft predicted peak; offshore wind can hold it under. All Half Moon Bay times station-local, refreshed 2026-09-05.