Today's tide
Today's tides
ft above MLLW- Low5:18 AM1.1 ft
- High11:28 AM10.4 ft
- Low5:53 PM0.0 ft
Tomorrow's tide (predicted)
Tomorrow's tides
ft above MLLW- High12:07 AM9.1 ft
- Low5:58 AM1.3 ft
- High12:07 PM10.2 ft
- Low6:34 PM0.2 ft
| Tide | Time | Height |
|---|---|---|
| Low | 5:18 AM | 1.1 ft |
| High | 11:28 AM | 10.4 ft |
| Low | 5:53 PM | 0.0 ft |
Best windows today
- Fishing4:00 to 5:00 PM
Moving water near sunset, as the tide falls toward the 5:53 PM low.
- Tidepools & shelling4:00 to 5:00 PM
Today's lowest water is at 5:53 PM, before sunrise or after sunset. Best daylight window is 4:00 to 5:00 PM.
- SurfingNext: Wed 8:00 to 10:00 AMEarlier today: 7:00 to 9:00 AM
Today's best window (7:00 to 9:00 AM) has passed.
- Shallow boat launchAvoid 4:00 to 8:00 PM
Under 1.5 ft around low water. Launch before 4:00 PM.
Best windows tomorrow
- Fishing6:00 to 7:00 AM
Dawn light with the incoming tide around the 12:07 PM high.
- Tidepools & shelling6:00 to 7:00 AM
Today's lowest water is at 6:34 PM, before sunrise or after sunset. Best daylight window is 6:00 to 7:00 AM.
- Surfing8:00 to 10:00 AM
Mid tide from 8:00 to 10:00 AM. No wind sensor at this station.
- Shallow boat launchAvoid 5:00 to 8:00 PM
Under 1.5 ft around low water. Launch before 5:00 PM.
Next 7 days
November calendar →| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Range, ft |
|---|---|---|---|---|---|
| TodayTue 10 | L5:18a1.1 | H11:28a10.4 | L5:53p0.0 | 10.3 spring tide | |
| WedNov 11 | H12:07a9.1 | L5:58a1.3 | H12:07p10.2 | L6:34p0.2 | 9.9 |
| ThuNov 12 | H12:48a8.8 | L6:39a1.5 | H12:48p10.0 | L7:15p0.5 | 9.4 |
| FriNov 13 | H1:30a8.6 | L7:20a1.8 | H1:30p9.7 | L7:57p0.8 | 8.9 |
| SatNov 14 | H2:13a8.4 | L8:04a2.0 | H2:14p9.4 | L8:42p1.1 | 8.4 |
| SunNov 15 | H2:59a8.2 | L8:51a2.2 | H3:02p9.2 | L9:30p1.3 | 7.9 |
| MonNov 16 | H3:48a8.2 | L9:43a2.3 | H3:53p9.0 | L10:19p1.4 | 7.6 |
Spring tides Tuesday. Lows drop to 0.0 ft, the best low-water days this week. Spring and neap tides
Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 8443970.
Nearby stations
Currents
South Boston, Pier 4, 0.2 n.mi. Nne of
- Max ebb4:25 AM 0.3 kn
- Slack6:05 AM
- Max flood9:39 AM 0.3 kn
- Slack11:33 AM
- Max ebb4:58 PM 0.4 kn
- Slack6:49 PM
- Max flood10:16 PM 0.3 kn
Current predictions for South Boston, Pier 4, 0.2 n.mi. Nne of, 1 mi away. Currents near inlets can be strong. Not for navigation.
Station details
- Datum
- Mean lower low water
- Predictions
- NOAA, from this station's own tide records
- Live gauge
- Every 6 minutes
- Coordinates
- 42.354° N, 71.050° W
- Time zone
- Eastern, UTC−5
- Station ID
- NOAA 8443970
About the tides at Boston
Expect two roughly equal high tides a day at Boston Harbor, each arriving about 50 minutes later than the day before. With a mean range of about 9.5 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 10.3 ft. Over the next two weeks the biggest daily range, 10.7 ft, comes on November 22, and the smallest, 7.3 ft, on November 19. Looking a year ahead, predictions peak at 11.8 ft on November 26 and bottom out at −1.8 ft on January 23.
A live NOAA gauge measures the water here, and predictions are calculated from this station's own records. It also reports air pressure. It was established in 1921. The nearest other station is Charlestown, 1 mi away. For tidal currents, see South Boston, Pier 4, 0.2 n.mi. Nne of.
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.