Block Island (Old Harbor) tide times

Block Island (Old Harbor), RIBlock Island (Old Harbor)NOAA 8459338Wednesday, September 30 · EDTWed Sep 30Predictions onlyChange station
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Today at Block Island (Old Harbor) the next low tide is at 4:54 PM (0.2 ft) and the next high tide is at 11:09 PM (2.9 ft). Tomorrow's first low is at 4:36 AM.

Predicted now
3.2 ft ↓
Falling 0.6 ft per hour
Next low
4:54 PM
In 4 h 40 min · 0.2 ft
Next high
11:09 PM
In 10 h 55 min · 2.9 ft
Tide range today
3.8 ft
Mean range 2.9 ft
Predictions only. No live gauge at this station.

Today's tide

PredictedNightHeight above MLLW
−2 ft0 ft2 ft4 ftNOW 12:143:51 AMLow · −0.1 ft10:39 AMHigh · 3.7 ft4:54 PMLow · 0.2 ft11:09 PMHigh · 2.9 ft
Tide chart for Block Island (Old Harbor), today. Low −0.1 ft at 3:51 AM, high 3.7 ft at 10:39 AM, low 0.2 ft at 4:54 PM, high 2.9 ft at 11:09 PM.

Predicted tide height at Block Island (Old Harbor) for Wednesday, September 30, in feet above Mean Lower Low Water (MLLW). Shaded areas are night.

Today's tides

ft above MLLW
  • Low3:51 AM−0.1 ft
  • High10:39 AM3.7 ft
  • Low4:54 PM0.2 ft
  • High11:09 PM2.9 ft
Tide times for Block Island (Old Harbor)
TideTimeHeight
Low3:51 AM−0.1 ft
High10:39 AM3.7 ft
Low4:54 PM0.2 ft
High11:09 PM2.9 ft
Sunrise
6:42 AM
First light 6:15
Sunset
6:32 PM
Last light 6:59
Moon
82%
Waning gibbous
Tide range
3.8 ft
Mean 2.9 ft

Best windows today

Plan the week →
  • Fishing
    6:00 to 8:00 PM

    Today's best window (6:00 to 8:00 AM) has passed. Dawn light with the incoming tide around the 10:39 AM high. Second window 6:00 to 8:00 PM.

  • Tidepools & shelling
    4:00 to 6:00 PM

    The 0.2 ft low at 4:54 PM falls in full daylight.

  • Surfing
    Next: Thu 8:00 to 9:00 AM
    Earlier today: 7:00 to 8:00 AM

    Today's best window (7:00 to 8:00 AM) has passed.

  • Shallow boat launch
    Avoid 2:00 to 8:00 PM

    Under 1.5 ft around low water. Launch before 2:00 PM.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

September calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayWed 30L3:51a−0.1H10:39a3.7L4:54p0.2H11:09p2.93.8 spring tide
ThuOct 1L4:36a0.0H11:32a3.6L5:59p0.43.5
FriOct 2H12:06a2.8L5:30a0.2H12:33p3.4L7:38p0.53.2
SatOct 3H1:09a2.7L6:38a0.4H1:41p3.2L8:58p0.52.9
SunOct 4H2:17a2.7L8:14a0.5H2:53p3.2L10:03p0.42.7
MonOct 5H3:29a2.8L9:53a0.4H4:07p3.2L10:58p0.32.9
TueOct 6H4:39a3.0L11:02a0.3H5:11p3.2L11:45p0.13.1

Spring tides Wednesday. Lows drop to −0.1 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 8459338.

Nearby stations

Currents

Old Harbor Pt., 0.5 mile southeast of

  • Slack1:49 AM
  • Max ebb5:26 AM 0.4 kn
  • Slack8:32 AM
  • Max flood11:03 AM 0.4 kn
  • Slack2:07 PM
  • Max ebb5:53 PM 0.5 kn
  • Slack9:17 PM
  • Max flood11:39 PM 0.3 kn

Current predictions for Old Harbor Pt., 0.5 mile southeast of, 2 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
41.173° N, 71.557° W
Time zone
Eastern, UTC−4
Station ID
NOAA 8459338

About the tides at Block Island (Old Harbor)

Block Island (Old Harbor) has a mixed tide. The two daily highs, and especially the two lows, can differ a lot in height. The average range is about 2.9 ft. Spring tides add a little more at both ends. From the average lower low to the average higher high, the difference is 3.2 ft. The next spring tides peak on October 10, with a range of 3.9 ft. Neap tides follow on Sunday, when the range shrinks to 2.7 ft.

This is a prediction station. NOAA calculates its tides from past measurements at this spot, but there is no live gauge today. NOAA measured the tide here from 1987 to 1989 to set up these predictions. The nearest other station is Southwest Point, 3 mi away, where high tide comes about 10 min later. For tidal currents, see Old Harbor Pt., 0.5 mile southeast of.

Height unitsftmAdd this tide widget to your site. It's free.Week plannerPrintable September calendar

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.