Great Diamond Island tide times

Great Diamond Island, MEGreat Diamond IslandNOAA 8417988Thursday, October 1 · EDTThu Oct 1TomorrowChange station
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On Thursday, October 1 at Great Diamond Island: high of 2.86 m at 2:41 AM, low of 0.13 m at 8:40 AM, high of 3.21 m at 2:53 PM, low of −0.11 m at 9:22 PM.

Lowest tide
9:22 PM
−0.11 m
Highest tide
2:53 PM
3.21 m
Tide range
3.31 m
Highest high minus lowest low
Daylight
6:39 AM
Sunset 6:24 PM
Predicted tides for Thursday, October 1.

Tomorrow's tide (predicted)

Estimated curve between high and low timesNightHeight above MLLW
−1 m0 m1 m2 m3 m2:41 AMHigh · 2.86 m8:40 AMLow · 0.13 m2:53 PMHigh · 3.21 m9:22 PMLow · −0.11 m
Tide chart for Great Diamond Island, Thursday, October 1. High 2.86 m at 2:41 AM, low 0.13 m at 8:40 AM, high 3.21 m at 2:53 PM, low −0.11 m at 9:22 PM.

Heights and times are estimated from Portland using NOAA offsets. Only the high and low points are official; the curve between them is drawn by us.

Tides this day

m above MLLW
  • High2:41 AM2.86 m
  • Low8:40 AM0.13 m
  • High2:53 PM3.21 m
  • Low9:22 PM−0.11 m
Tide times for Great Diamond Island
TideTimeHeight
High2:41 AM2.86 m
Low8:40 AM0.13 m
High2:53 PM3.21 m
Low9:22 PM−0.11 m
Sunrise
6:39 AM
First light 6:10
Sunset
6:24 PM
Last light 6:52
Moon
72%
Waning gibbous
Tide range
3.31 m
Spring tides Wed

Best windows tomorrow

Plan the week →
  • Fishing
    7:00 to 8:00 AM

    Dawn light with the outgoing tide around the 8:40 AM low.

  • Tidepools & shelling
    7:00 to 10:00 AM

    The 0.13 m low at 8:40 AM falls in full daylight. The tide returns fast here, so start heading back by 9:40 AM.

  • Surfing
    11:00 AM to 12:00 PM

    Mid tide from 11:00 AM to 12:00 PM. No wind sensor at this station.

  • Shallow boat launch
    Avoid 7:00 to 10:00 AM

    Under 0.46 m 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 m
DayTide 1Tide 2Tide 3Tide 4Range, m
TomorrowThu 1H2:41a2.86L8:40a0.13H2:53p3.21L9:22p−0.113.31
FriOct 2H3:37a2.74L9:34a0.23H3:50p3.12L10:22p−0.013.12
SatOct 3H4:40a2.64L10:35a0.33H4:55p3.03L11:28p0.082.95
SunOct 4H5:48a2.59L11:42a0.39H6:05p2.972.59
MonOct 5L12:37a0.12H6:58a2.60L12:54p0.38H7:17p2.962.84
TueOct 6L1:47a0.10H8:06a2.70L2:05p0.29H8:25p3.002.90
WedOct 7L2:49a0.04H9:05a2.84L3:09p0.15H9:25p3.053.02

Neap tides Sunday. Smaller range, so highs and lows stay close to average. Spring and neap tides

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 8417988.

Nearby stations

Currents

Diamond Island Roads

  • Slack1:47 AM
  • Max ebb6:04 AM 0.9 kn
  • Slack8:41 AM
  • Max flood10:50 AM 0.6 kn
  • Slack2:06 PM
  • Max ebb6:46 PM 1.0 kn
  • Slack9:57 PM
  • Max flood11:50 PM 0.4 kn

Current predictions for Diamond Island Roads, 0.9 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum
Mean lower low water
Predictions
NOAA subordinate, from Portland
Live gauge
None
Coordinates
43.670° N, 70.200° W
Time zone
Eastern, UTC−4
Station ID
NOAA 8417988

About the tides at Great Diamond Island

Tides here follow a regular twice-daily rhythm. The two daily highs usually differ by only 0.8 ft. With a mean range of about 9.1 ft, the shoreline here changes a lot between high and low water. From the average lower low to the average higher high, the difference is 9.9 ft. Over the next two weeks the biggest daily range, 11.3 ft, comes today, and the smallest, 8.5 ft, on Sunday.

Tides here are worked out from the reference station at Portland, with NOAA time and height corrections. Times are good for planning, but local wind can shift them. NOAA measured the tide here in 1979 to set up these predictions. The nearest other station is Peak Island, 1 mi away. For tidal currents, see Diamond Island Roads.

Predictions are based on Portland.

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.