Tidewindow

Bar Harbor (Acadia) tide windows

NOAA 8413320

Downeast Maine station with a 10-plus-foot range. Low tide opens the Bar Island gravel bar and Acadia's Ship Harbor pools.

Covers: Bar Island land bridge · Ship Harbor · Wonderland

Next best window · computed 2026-10-04

Oct 25, 2026 (Sun): the tide bottoms at -0.6 ft at 4:43 PM — walkable 3:20 PM–6:10 PM, arrive by 3:43 PM. 59 · Fair

sunset+1.0 ft walkable-0.6 ft · 4:43 PM

Every daylight window, next 30 days

Heights in feet MLLW from NOAA station 8413320 (Bar Harbor) predictions. ✳ = federal holiday.

DateLowHeightWindowDaylightScore
Mon12:20 AM0.5 ft11:30 PM–1:10 AMnight0 · Skip
Tue1:27 AM0.3 ft12:30 AM–2:20 AMnight0 · Skip
Wed2:29 AM0.1 ft1:25 AM–3:30 AMnight0 · Skip
Wed2:52 PM0.5 ft2:00 PM–3:35 PM1h 35m22 · Skip
Thu3:23 AM-0.1 ft2:10 AM–4:30 AMnight0 · Skip
Thu3:47 PM-0.0 ft2:40 PM–4:55 PM2h 15m39 · Skip
Fri4:12 AM-0.3 ft2:55 AM–5:25 AMnight0 · Skip
Fri4:37 PM-0.4 ft3:20 PM–5:55 PM2h 35m54 · Fair
Sat4:57 AM-0.2 ft3:45 AM–6:10 AMnight0 · Skip
Sat5:23 PM-0.5 ft3:55 PM–6:45 PM2h 2m57 · Fair
Sun5:39 AM0.0 ft4:35 AM–6:40 AMnight0 · Skip
Sun6:06 PM-0.5 ft4:45 PM–7:25 PM1h 10m48 · Fair
Mon ✳6:20 AM0.4 ft5:30 AM–7:10 AM0h 26m0 · Skip
Mon ✳6:48 PM-0.3 ft5:30 PM–8:05 PM0h 24m0 · Skip
Tue6:59 AM0.8 ft6:45 AM–7:15 AM0h 30m11 · Skip
Tue7:29 PM0.1 ft6:20 PM–8:35 PMnight0 · Skip
Wed8:11 PM0.5 ft7:20 PM–9:05 PMnight0 · Skip
Thu8:56 PM0.9 ft8:50 PM–9:10 PMnight0 · Skip
Fri2:52 AM0.8 ft2:30 AM–3:15 AMnight0 · Skip
Fri3:15 PM0.7 ft2:40 PM–3:55 PM1h 15m24 · Skip
Sat3:33 AM0.4 ft2:40 AM–4:20 AMnight0 · Skip
Sat4:00 PM0.0 ft2:50 PM–5:10 PM2h 20m49 · Fair
Sun4:14 AM0.2 ft3:10 AM–5:15 AMnight0 · Skip
Sun4:43 PM-0.6 ft3:20 PM–6:10 PM2h 12m59 · Fair
Mon4:56 AM-0.0 ft3:50 AM–6:05 AMnight0 · Skip
Mon5:27 PM-1.0 ft3:50 PM–7:05 PM1h 41m52 · Fair
Tue5:39 AM-0.1 ft4:35 AM–6:45 AMnight0 · Skip
Tue6:13 PM-1.2 ft4:35 PM–7:55 PM0h 54m49 · Fair
Wed6:24 AM0.0 ft5:20 AM–7:25 AM0h 20m0 · Skip
Wed7:02 PM-1.2 ft5:25 PM–8:40 PM0h 3m0 · Skip
Thu7:13 AM0.3 ft6:20 AM–8:10 AM1h 4m21 · Skip
Thu7:54 PM-0.9 ft6:20 PM–9:30 PMnight0 · Skip
Fri8:07 AM0.6 ft7:30 AM–8:45 AM1h 15m24 · Skip
Fri8:51 PM-0.6 ft7:25 PM–10:20 PMnight0 · Skip
Sat9:06 AM0.9 ft8:55 AM–9:10 AM0h 15m0 · Skip
Sat9:53 PM-0.2 ft8:35 PM–11:10 PMnight0 · Skip
Sun9:59 PM0.2 ft8:50 PM–11:05 PMnight0 · Skip
Mon11:05 PM0.3 ft10:05 PM–12:05 AMnight0 · Skip

Next 7 days of high and low tides

The complete high/low sequence from NOAA station 8413320, in local time. Tidewindow's scored table above is the smaller decision set: lows under +1.0 ft with a usable shoreline window.

NOAA 8413320 predictions · feet MLLW · local time
DateTypeTimeHeight
SunLow11:29 AM1.5 ft
SunHigh5:45 PM11.0 ft
MonLow12:20 AM0.5 ft
MonHigh6:35 AM9.8 ft
MonLow12:41 PM1.4 ft
MonHigh6:56 PM11.0 ft
TueLow1:27 AM0.3 ft
TueHigh7:42 AM10.2 ft
TueLow1:50 PM1.0 ft
TueHigh8:03 PM11.2 ft
WedLow2:29 AM0.1 ft
WedHigh8:42 AM10.7 ft
WedLow2:52 PM0.5 ft
WedHigh9:03 PM11.4 ft
ThuLow3:23 AM-0.1 ft
ThuHigh9:34 AM11.2 ft
ThuLow3:47 PM-0.0 ft
ThuHigh9:57 PM11.6 ft
FriLow4:12 AM-0.3 ft
FriHigh10:22 AM11.6 ft
FriLow4:37 PM-0.4 ft
FriHigh10:46 PM11.6 ft
SatLow4:57 AM-0.2 ft
SatHigh11:05 AM11.9 ft
SatLow5:23 PM-0.5 ft
SatHigh11:31 PM11.5 ft
SunLow5:39 AM0.0 ft

Monthly calendars

July 2026August 2026September 2026October 2026November 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
Common PeriwinkleLittorina littorea19
Atlantic JackknifeEnsis leei8
Common Atlantic SlippersnailCrepidula fornicata7
Atlantic DogwhelkNucella lapillus7
Soft-shelled ClamMya arenaria5
Fuzzy OnchidorisOnchidoris muricata2
Eastern OysterCrassostrea virginica2
Flat PeriwinkleLittorina obtusata2
Eastern White SlippersnailCrepidula plana2
Tortoiseshell LimpetTestudinalia testudinalis2

Quick answers

When is the next good low tide at Bar Harbor (Acadia)?

Oct 25, 2026 (Sun): a -0.6 ft low at 4:43 PM, walkable from 3:20 PM to 6:10 PM — score 59/100. Computed from NOAA station 8413320 predictions.

How low does the tide need to be at Bar Harbor (Acadia)?

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 Bar Island land bridge is at its best.

How many daylight minus tides does Bar Harbor (Acadia) get in the next 30 days?

7 of the next 30 days' 17 minus tides overlap daylight by at least 30 minutes, as of 2026-10-04. 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.