5b98ab6c-42a0-5584-8cbb-cf5f15864060 · no UN/LOCODE · North America
Nantucket Boat Basin
Nantucket, United States · 41.285°N 70.097°W
A short, expensive, fog-and-reservation harbour. The basin is the town. Off-island weather windows, ferry wash and a July–August closed list define the place.
Live channels · not a chart · not a reservation
EstimateClear at 2026-08-26T20:15 America/New_York. Wind 3 kn from SSW, gusts 6 kn. It is after local sunset. If this harbour publishes a night-entry restriction, treat it as active until sunrise. Model significant wave 0.5 m from S — coastal model, not a harbour sounding. SST 22.3 °C. Next published low 2026-08-26 05:29 (NOAA CO-OPS).
- Wind
- 3 kn SSW
- Gusts
- 6 kn
- Waves
- 0.5 m
- Twilight
- Night
Max LOA
65 m
ReportedMax draft
3 m
ReportedVHF
09
VerifiedAugust band
VERY_HIGH
EstimateServices
- Fuel
diesel
Marina operator rate card / facilities sheet · 2026-06-01
Verified- Potable water
Yes
Marina operator rate card / facilities sheet · 2026-06-01
Verified- Wi-Fi
STRONG
Marina operator rate card / facilities sheet · 2026-06-01
Reported- Security
Marina access control
Marina operator rate card / facilities sheet · 2026-06-01
Reported
Shore power: 120V, 208V, 240V, 480V · 32A, 63A, 125A, 400A · 60Hz
Waste: pump-out yes · black yes · grey yes
Fees — labelled estimates
High-season daily bands. Not a quote, not live availability.
- 30 m reference · ~400 USDEstimate
- 50 m reference · ~900 USDEstimate
Contacts by role
- HARBOURMASTERVHF09Verified
- EMERGENCYPHONElocal emergency numberReported
Allocation kinds — kept separate
Season contracts + nightly remainder. No VTS product.
Captain notes
- Have Hyannis or Martha's Vineyard as weather overflow.
- Reservation is necessary and still not sufficient in race weeks.
Port entry & formalities
Decision-support intelligence only. Not legal advice. Not clearance authorization. maritimIQ does not authorize entry and does not determine formal status.
A port-of-entry label does not invent 24-hour customs or immigration service.
Pilotage
NOT_COVERED — No matching PILOTAGE rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
PORT_ENTRY · NOT_COVERED · UNKNOWN
No matching PORT_ENTRY rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
ADVANCE_NOTICE · NOT_COVERED · UNKNOWN
No matching ADVANCE_NOTICE rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
PILOTAGE · NOT_COVERED · UNKNOWN
No matching PILOTAGE rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
TOWAGE · NOT_COVERED · UNKNOWN
No matching TOWAGE rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
CUSTOMS · NOT_COVERED · UNKNOWN
No matching CUSTOMS rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
IMMIGRATION · NOT_COVERED · UNKNOWN
No matching IMMIGRATION rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
HEALTH · NOT_COVERED · UNKNOWN
No matching HEALTH rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
SECURITY · NOT_COVERED · UNKNOWN
No matching SECURITY rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
COMMERCIAL · NOT_COVERED · UNKNOWN
No matching COMMERCIAL rule is recorded for this harbour/jurisdiction. That is NOT_COVERED, not NOT_REQUIRED.
NOAD · APPLICABILITY_UNKNOWN · SOURCE_BACKED
Notice of Arrival may be required under 33 CFR 160.203. Harbor Intelligence does not submit NOAD.
EMSWE · NOT_COVERED · UNKNOWN
EMSWe does not apply outside the EU.
Sample evaluation factsAt 2026-08-25T23:30:00Z. Missing vessel facts stay UNKNOWN. This is not clearance.
Navigational warnings
UNKNOWN COVERAGE — warning intelligence is unavailable without the canonical database.