Today's tide
Today's tides
ft above MLLW- Low12:56 AM1.7 ft
- High7:15 AM8.2 ft
- Low1:12 PM2.3 ft
- High7:25 PM8.9 ft
Tomorrow's tide (predicted)
Tomorrow's tides
ft above MLLW- Low1:47 AM1.5 ft
- High8:06 AM8.5 ft
- Low2:06 PM1.9 ft
- High8:19 PM9.1 ft
| Tide | Time | Height |
|---|---|---|
| Low | 12:56 AM | 1.7 ft |
| High | 7:15 AM | 8.2 ft |
| Low | 1:12 PM | 2.3 ft |
| High | 7:25 PM | 8.9 ft |
Best windows today
- FishingNext: Wed 12:00 to 1:00 AMEarlier today: 5:00 to 7:00 PM
Today's best window (5:00 to 7:00 PM) has passed.
- Tidepools & shellingNext: Wed 1:00 to 3:00 PMEarlier today: 12:00 to 3:00 PM
Today's best window (12:00 to 3:00 PM) has passed.
- SurfingNext: Wed 4:00 to 6:00 PMEarlier today: 3:00 to 5:00 PM
Today's best window (3:00 to 5:00 PM) has passed.
- Shallow boat launchEnough water all day
Lowest is 1.7 ft at 12:56 AM.
Best windows tomorrow
- Fishing6:00 to 8:00 AM
Dawn light with the incoming tide around the 8:06 AM high. Second window 6:00 to 7:00 PM.
- Tidepools & shelling1:00 to 3:00 PM
The 1.9 ft low at 2:06 PM falls in full daylight. The tide returns fast here, so start heading back by 3:05 PM.
- Surfing4:00 to 6:00 PM
Mid tide from 4:00 to 6:00 PM. No wind sensor at this station.
- Shallow boat launchEnough water all day
Lowest is 1.5 ft at 1:47 AM.
Next 7 days
October calendar →| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Range, ft |
|---|---|---|---|---|---|
| TodayTue 20 | L12:56a1.7 | H7:15a8.2 | L1:12p2.3 | H7:25p8.9 | 7.3 |
| WedOct 21 | L1:47a1.5 | H8:06a8.5 | L2:06p1.9 | H8:19p9.1 | 7.6 |
| ThuOct 22 | L2:36a1.2 | H8:53a9.0 | L2:58p1.4 | H9:09p9.4 | 8.2 |
| FriOct 23 | L3:22a0.9 | H9:36a9.6 | L3:46p0.8 | H9:56p9.7 | 9.0 |
| SatOct 24 | L4:05a0.6 | H10:16a10.2 | L4:32p0.1 | H10:40p10.0 | 10.1 |
| SunOct 25 | L4:48a0.3 | H10:56a10.8 | L5:17p−0.4 | H11:25p10.2 | 11.2 |
| MonOct 26 | L5:30a0.1 | H11:37a11.2 | L6:03p−0.9 | 12.1 spring tide |
Spring tides Monday. Lows drop to −0.9 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 8443838.
Nearby stations
Currents
Charles River Entrance
- Current predictions are delayed. Try again soon.
Current predictions for Charles River Entrance, 0.2 mi away. Currents near inlets can be strong. Not for navigation.
Station details
- Datum
- Mean lower low water
- Predictions
- NOAA subordinate, from Boston, Boston Harbor
- Live gauge
- None
- Coordinates
- 42.372° N, 71.055° W
- Time zone
- Eastern, UTC−4
- Station ID
- NOAA 8443838
About the tides at Charlestown
Expect two roughly equal high tides a day at Boston Naval Ship., Charlestown, each arriving about 50 minutes later than the day before. The pattern follows the reference station at Boston, Boston Harbor. The range is large, about 8.9 ft on average. Flats and bars appear and vanish quickly, so keep an eye on the time. That is larger than most Massachusetts stations on this site. In the next 12 months the highest predicted tide here is 11.8 ft on November 26, and the lowest is −1.8 ft on January 23.
Charlestown is a subordinate station. NOAA predicts its tides by adjusting Boston, Boston Harbor: highs come about 0 min and lows about 1 min later than there. The nearest other station is Boston, 1 mi away. For tidal currents, see Charles River Entrance.
Predictions are based on Boston, Boston Harbor.
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.