marina · Massachusetts

Onset Bay, Mass Anchorage Area

Gale Warning is active now until Wed 8 PM.

Right now

updated 10:54 AM
Sky
Sunny

52°F · sets 5:56 PM

Wind
East-northeast 17 kt

gusts 19 kt

Tide
Ebb

Low tide 12:13 PM

Water
59.5°F

Water level not reported

Latest observations plus the current-hour NWS sky forecast. The call itself runs on the hourly forecast; nearby NDBC 44020 observations do not replace it.

Official warningGale Warning

Gale Warning issued October 19 at 10:03AM EDT until October 21 at 8:00PM EDT by NWS Boston/Norton MA In effect through 10/21/2026, 8:00:00 PM EDT.

Read the NWS alert

How the day develops

Available forecast · 11 kt peak wind · 3 ft peak seas · Long-period swell

Drag the handle to time-travel. Let go to come back to now.

Right nowNo-Go

Right now. No-Go. Seas are the limiting factor. 2 feet every 10 seconds, 0.5 feet under your 2.5 foot limit. sunny, wind east 7 knots, comfortably under the limit, tide falling, low tide at 12:13 PM.

Tide chart

Onset Bay, Mass Anchorage Area tides

Onset Bay, Mass Anchorage Area uses NOAA CO-OPS Sandwich Marina (8447180). The canonical chart for that station is Sandwich Marina.

High
6:12 AM · 6.91 ft
Low · next
12:13 PM · 2.29 ft
High
6:25 PM · 7.72 ft

Water temperature 59.5°F at Oct 19, 10:10 AM EDT from NDBC 44020. Nantucket Harbor water temperature.

Nearby harbors

Nearby boating conditions

Local source coverage

Marine forecast and boating conditions for Onset Bay, Mass Anchorage Area

Onset Bay, Mass Anchorage Area is a Northeast boating destination in Massachusetts, with local wind, wave, tide, and aviation weather conditions from nearby reporting stations.

This marina in Massachusetts uses Nantucket Sound (44020, 22.0 NM away) for marine observations, Sandwich Marina (8447180, 6.8 NM away) for tide predictions, and New Bedford Regional (KEWB, 14.2 NM away) for nearby aviation weather context.

Boat or Nope continuously checks the source bindings behind this planning page.