Block Island (Old Harbor) tide times

Block Island Harbor, Old Harbor, RIBlock Island Harbor, Old HarborNOAA 8459338Tuesday, October 20 · EDTTue Oct 20Predictions onlyChange station
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Today at Block Island (Old Harbor) the next low tide is at 10:40 PM (0.7 ft). Tomorrow's first low is at 10:49 AM.

Predicted now
1.5 ft ↓
Falling 0.5 ft per hour
Next low
10:40 PM
In 3 h 14 min · 0.7 ft
Next high
4:27 AM
In 9 h 01 min · 2.5 ft
Tide range today
1.9 ft
Mean range 2.9 ft
Predictions only. No live gauge at this station.

Today's tide

PredictedNightHeight above MLLW
0 ft2 ftNOW 7:253:26 AMHigh · 2.2 ft9:48 AMLow · 0.9 ft3:58 PMHigh · 2.6 ft10:40 PMLow · 0.7 ft
Tide chart for Block Island (Old Harbor), today. High 2.2 ft at 3:26 AM, low 0.9 ft at 9:48 AM, high 2.6 ft at 3:58 PM, low 0.7 ft at 10:40 PM.

Predicted tide height at Block Island Harbor, Old Harbor for Tuesday, October 20, in feet above Mean Lower Low Water (MLLW). Shaded areas are night.

Today's tides

ft above MLLW
  • High3:26 AM2.2 ft
  • Low9:48 AM0.9 ft
  • High3:58 PM2.6 ft
  • Low10:40 PM0.7 ft
Tide times for Block Island (Old Harbor)
TideTimeHeight
High3:26 AM2.2 ft
Low9:48 AM0.9 ft
High3:58 PM2.6 ft
Low10:40 PM0.7 ft
Sunrise
7:04 AM
First light 6:36
Sunset
5:59 PM
Last light 6:27
Moon
69%
Waxing gibbous
Tide range
1.9 ft
Mean 2.9 ft

Best windows today

Plan the week →
  • Fishing
    9:00 to 10:00 PM

    Today's best window (1:00 to 3:00 AM) has passed. Strongest flow of the incoming tide, between the 9:57 PM low and 3:26 AM high. Second window 6:00 to 8:00 AM.

  • Tidepools & shelling
    Next: Wed 10:00 to 11:00 AM
    Earlier today: 8:00 to 11:00 AM

    Today's best window (8:00 to 11:00 AM) has passed.

  • Surfing
    Next: Wed 1:00 to 2:00 PM
    Earlier today: 12:00 to 1:00 PM

    Today's best window (12:00 to 1:00 PM) has passed.

  • Shallow boat launch
    Avoid 7:00 AM to 12:00 PM

    Under 1.5 ft around low water. Launch before 7:00 AM.

Plan the week

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

Next 7 days

October calendar →
High and low tides for the next 7 days, heights in ft
DayTide 1Tide 2Tide 3Tide 4Range, ft
TodayTue 20H3:26a2.2L9:48a0.9H3:58p2.6L10:40p0.71.9
WedOct 21H4:27a2.5L10:49a0.7H4:51p2.7L11:14p0.52.2
ThuOct 22H5:14a2.8L11:37a0.5H5:35p2.8L11:45p0.32.6
FriOct 23H5:55a3.1L12:21p0.2H6:16p3.02.9
SatOct 24L12:14a0.1H6:34a3.5L1:03p0.0H6:58p3.13.5
SunOct 25L12:47a−0.1H7:15a3.8L1:45p−0.1H7:41p3.23.9
MonOct 26L1:24a−0.3H7:58a4.0L2:28p−0.2H8:26p3.24.2 spring tide

Spring tides Monday. Lows drop to −0.3 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

  • Slack1:23 AM
  • Max flood3:45 AM 0.2 kn
  • Slack6:41 AM
  • Max ebb10:25 AM 0.3 kn
  • Slack1:50 PM
  • Max flood4:03 PM 0.2 kn
  • Slack6:56 PM
  • Max ebb10:44 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. In the next 12 months the highest predicted tide here is 4.1 ft on July 4, and the lowest is −0.9 ft on January 23.

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 14 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 October 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.