Today's tide
Today's tides
ft above MLLW- High1:36 AM9.1 ft
- Low7:30 AM0.9 ft
- High1:44 PM9.9 ft
- Low8:02 PM0.1 ft
Tomorrow's tide (predicted)
Tomorrow's tides
ft above MLLW- High2:16 AM8.7 ft
- Low8:10 AM1.3 ft
- High2:23 PM9.6 ft
- Low8:44 PM0.5 ft
| Tide | Time | Height |
|---|---|---|
| High | 1:36 AM | 9.1 ft |
| Low | 7:30 AM | 0.9 ft |
| High | 1:44 PM | 9.9 ft |
| Low | 8:02 PM | 0.1 ft |
Best windows today
- Fishing5:00 to 9:00 PM
Today's best window (6:00 to 7:00 AM) has passed. Dawn light with the outgoing tide around the 7:30 AM low. Second window 6:00 to 7:00 PM.
- Tidepools & shelling6:00 to 7:00 PM
Today's best window (7:00 to 8:00 AM) has passed. The 0.9 ft low at 7:30 AM falls in full daylight. The tide returns fast here, so start heading back by 8:30 AM.
- SurfingNext: Wed 10:00 AM to 12:00 PMEarlier today: 9:00 to 11:00 AM
Today's best window (9:00 to 11:00 AM) has passed.
- Shallow boat launchAvoid 7:00 to 8:00 AM
Under 1.5 ft around low water. Launch before 7:00 AM.
Best windows tomorrow
- Fishing6:00 to 8:00 AM
Dawn light with the outgoing tide around the 8:10 AM low.
- Tidepools & shelling7:00 to 9:00 AM
The 1.3 ft low at 8:10 AM falls in full daylight. The tide returns fast here, so start heading back by 9:10 AM.
- Surfing10:00 AM to 12:00 PM
Mid tide from 10:00 AM to 12:00 PM. No wind sensor at this station.
- Shallow boat launchAvoid 8:00 to 9:00 AM
Under 1.5 ft around low water. Launch before 8:00 AM.
Next 7 days
October calendar →| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Range, ft |
|---|---|---|---|---|---|
| TodayTue 13 | H1:36a9.1 | L7:30a0.9 | H1:44p9.9 | L8:02p0.1 | 9.7 |
| WedOct 14 | H2:16a8.7 | L8:10a1.3 | H2:23p9.6 | L8:44p0.5 | 9.1 |
| ThuOct 15 | H2:59a8.3 | L8:53a1.6 | H3:06p9.2 | L9:29p0.8 | 8.4 |
| FriOct 16 | H3:44a8.0 | L9:39a2.0 | H3:53p8.9 | L10:18p1.1 | 7.8 |
| SatOct 17 | H4:33a7.7 | L10:28a2.2 | H4:44p8.6 | L11:10p1.4 | 7.2 |
| SunOct 18 | H5:27a7.5 | L11:23a2.4 | H5:40p8.4 | 6.0 | |
| MonOct 19 | L12:06a1.6 | H6:25a7.5 | L12:21p2.4 | H6:39p8.3 | 6.8 |
Neap tides Sunday. Smaller range, so highs and lows stay close to average. Spring and neap tides
Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 8446009.
Nearby stations
Currents
No current prediction station nearby.
Station details
- Datum
- Mean lower low water
- Predictions
- NOAA, from this station's own tide records
- Live gauge
- None
- Coordinates
- 42.083° N, 70.647° W
- Time zone
- Eastern, UTC−4
- Station ID
- NOAA 8446009
About the tides at Brant Rock
Brant Rock has a semidiurnal tide: two highs and two lows of similar height each day, about 12 hours and 25 minutes apart. With a mean range of about 9.1 ft, the shoreline here changes a lot between high and low water. That is larger than most Massachusetts stations on this site. From the average lower low to the average higher high, the difference is 9.9 ft. Looking a year ahead, predictions peak at 11.5 ft on July 6 and bottom out at −1.6 ft on January 23.
Predictions for Brant Rock come from this station's own tide records. There is no live sensor, so the table shows forecast only. NOAA measured the tide here in 1990 to set up these predictions. The nearest other station is Duxbury, 3 mi away.
Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.