Tidewindow

San Diego (Cabrillo) tide windows

NOAA 9410170

San Diego Bay reference station, the standard prediction source for the protected rocky intertidal zone at Cabrillo National Monument.

Covers: Cabrillo National Monument tidepools · Sunset Cliffs · Ocean Beach

Next best window · computed 2026-08-18

Sep 12, 2026 (Sat): the tide bottoms at 0.5 ft at 4:44 PM — walkable 3:35 PM–5:55 PM, arrive by 3:44 PM. 43 · Fair

sunset+1.0 ft walkable0.5 ft · 4:44 PM

Every daylight window, next 30 days

Heights in feet MLLW from NOAA station 9410170 (San Diego) predictions. ✳ = federal holiday.

DateLowHeightWindowDaylightScore
Sat1:17 AM0.8 ft12:05 AM–2:25 AMnight0 · Skip
Sun1:55 AM0.4 ft12:15 AM–3:35 AMnight0 · Skip
Mon2:26 AM0.1 ft12:35 AM–4:20 AMnight0 · Skip
Tue2:53 AM-0.1 ft12:55 AM–4:55 AMnight0 · Skip
Wed3:18 AM-0.2 ft1:25 AM–5:20 AMnight0 · Skip
Thu3:42 AM-0.2 ft1:50 AM–5:40 AMnight0 · Skip
Fri4:06 AM-0.1 ft2:20 AM–5:55 AMnight0 · Skip
Sat4:30 AM0.1 ft2:55 AM–6:05 AMnight0 · Skip
Sun4:54 AM0.5 ft3:40 AM–6:10 AMnight0 · Skip
Mon5:17 AM0.9 ft4:55 AM–5:15 AMnight0 · Skip
Thu10:08 PM1.0 ft9:50 PM–10:15 PMnight0 · Skip
Fri11:43 PM0.5 ft10:05 PM–1:30 AMnight0 · Skip
Sun12:46 AM-0.0 ft10:45 PM–3:00 AMnight0 · Skip
Mon ✳1:34 AM-0.4 ft11:25 PM–3:55 AMnight0 · Skip
Tue2:14 AM-0.7 ft12:00 AM–4:30 AMnight0 · Skip
Wed2:50 AM-0.7 ft12:45 AM–5:00 AMnight0 · Skip
Thu3:22 AM-0.5 ft1:25 AM–5:20 AMnight0 · Skip
Thu3:22 PM0.8 ft2:45 PM–4:00 PM1h 15m22 · Skip
Fri3:52 AM-0.2 ft2:10 AM–5:35 AMnight0 · Skip
Fri4:03 PM0.6 ft3:00 PM–5:05 PM2h 5m35 · Skip
Sat4:19 AM0.3 ft2:55 AM–5:40 AMnight0 · Skip
Sat4:44 PM0.5 ft3:35 PM–5:55 PM2h 20m43 · Fair
Sun4:45 AM0.9 ft4:15 AM–5:15 AMnight0 · Skip
Sun5:26 PM0.6 ft4:20 PM–6:35 PM2h 15m42 · Fair
Mon6:11 PM0.8 ft5:25 PM–7:05 PM1h 31m24 · Skip

Monthly calendars

July 2026August 2026September 2026

What's in the pools right now

Research-grade observations within 5 km in the last 60 days, via iNaturalist (data © contributors, CC BY-NC).

SpeciesScientific nameObservations
Pismo ClamTivela stultorum3
Gould BeanclamDonax gouldii2
Pacific OysterMagallana gigas2
Giant Rock ScallopCrassadoma gigantea1
Angular UnicornAcanthinucella spirata1
Spiny Cup-and-SaucerCrucibulum spinosum1
California Sunset ClamGari californica1
Clipped SemeleSemele decisa1

Quick answers

When is the next good low tide at San Diego (Cabrillo)?

Sep 12, 2026 (Sat): a 0.5 ft low at 4:44 PM, walkable from 3:35 PM to 5:55 PM — score 43/100. Computed from NOAA station 9410170 predictions.

How low does the tide need to be at San Diego (Cabrillo)?

Tidewindow counts a window whenever the predicted height falls below +1.0 ft MLLW, and scores depth from +0.5 ft (0 points) to −2.0 ft (50 points). The lower the tide, the more of the intertidal zone is exposed — minus tides (below 0 ft) are when Cabrillo National Monument tidepools is at its best.

How many daylight minus tides does San Diego (Cabrillo) get in the next 30 days?

0 of the next 30 days' 10 minus tides overlap daylight by at least 30 minutes, as of 2026-08-18. The full list is in the table above.

Safety: tide predictions are astronomical forecasts, not observations — wind and swell change actual water levels. Follow posted rules at protected areas, and never turn your back on the ocean. See our methodology for exactly how windows and scores are computed.