Today's tide
Today's tides
ft above MLLW- High12:50 AM9.9 ft
- Low6:45 AM0.7 ft
- High1:00 PM10.5 ft
- Low7:13 PM0.0 ft
Tomorrow's tide (predicted)
Tomorrow's tides
ft above MLLW- High1:30 AM9.5 ft
- Low7:24 AM1.0 ft
- High1:37 PM10.3 ft
- Low7:54 PM0.2 ft
| Tide | Time | Height |
|---|---|---|
| High | 12:50 AM | 9.9 ft |
| Low | 6:45 AM | 0.7 ft |
| High | 1:00 PM | 10.5 ft |
| Low | 7:13 PM | 0.0 ft |
Best windows today
- Fishing5:00 to 7:00 PM
Moving water near sunset, as the tide falls toward the 7:13 PM low. Second window 7:00 to 8:00 AM.
- Tidepools & shelling6:00 to 8:00 AM
The 0.7 ft low at 6:45 AM falls in full daylight. The tide returns fast here, so start heading back by 7:45 AM.
- Surfing9:00 to 11:00 AM
Mid tide from 9:00 to 11:00 AM. No wind sensor at this station.
- Shallow boat launchAvoid 6:00 to 8:00 AM
Under 1.5 ft around low water. Launch before 6:00 AM.
Best windows tomorrow
- Fishing6:00 to 7:00 AM
Dawn light with the outgoing tide around the 7:24 AM low. Second window 6:00 to 7:00 PM.
- Tidepools & shelling7:00 to 8:00 AM
The 1.0 ft low at 7:24 AM falls in full daylight. The tide returns fast here, so start heading back by 8:20 AM.
- Surfing9:00 to 11:00 AM
Mid tide from 9:00 to 11:00 AM. No wind sensor at this station.
- Shallow boat launchAvoid 7:00 to 8:00 AM
Under 1.5 ft around low water. Launch before 7:00 AM.
Next 7 days
October calendar →| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Range, ft |
|---|---|---|---|---|---|
| TodayMon 12 | H12:50a9.9 | L6:45a0.7 | H1:00p10.5 | L7:13p0.0 | 10.6 spring tide |
| TueOct 13 | H1:30a9.5 | L7:24a1.0 | H1:37p10.3 | L7:54p0.2 | 10.1 |
| WedOct 14 | H2:10a9.2 | L8:04a1.4 | H2:16p10.0 | L8:37p0.5 | 9.5 |
| ThuOct 15 | H2:51a8.8 | L8:48a1.7 | H2:59p9.7 | L9:23p0.9 | 8.8 |
| FriOct 16 | H3:36a8.5 | L9:35a2.1 | H3:45p9.3 | L10:12p1.2 | 8.1 |
| SatOct 17 | H4:25a8.2 | L10:26a2.3 | H4:36p9.0 | L11:04p1.5 | 7.6 |
| SunOct 18 | H5:19a8.0 | L11:20a2.5 | H5:32p8.8 | L11:59p1.6 | 7.2 |
Spring tides Monday. Lows drop to 0.0 ft, the best shelling 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 8443725.
Nearby stations
Currents
Chelsea River, below bascule bridge
- Slack1:02 AM
- Max ebb4:32 AM 0.3 kn
- Slack7:23 AM
- Max flood9:51 AM 0.3 kn
- Slack1:19 PM
- Max ebb5:01 PM 0.3 kn
- Slack8:02 PM
- Max flood10:23 PM 0.3 kn
Current predictions for Chelsea River, below bascule bridge, 0.3 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
- None
- Coordinates
- 42.387° N, 71.023° W
- Time zone
- Eastern, UTC−4
- Station ID
- NOAA 8443725
About the tides at Chelsea St. Bridge
Chelsea St. Bridge 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 9.6 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 10.4 ft. Looking a year ahead, predictions peak at 12.0 ft on July 6 and bottom out at −1.7 ft on January 23.
Predictions for Chelsea St. Bridge 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 2002 to set up these predictions. The nearest other station is Charlestown, 2 mi away. For tidal currents, see Chelsea River, below bascule bridge.
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.