Great Diamond Island tide times
The tide is falling: low tide at 11:42 AM, 1.3 ft.
Now
Today, Sunday, October 4: every high and low tide, and the predicted curve through the day.
- High tide5:48 AM8.5 ft
- Low tide11:42 AM1.3 ft
- High tide6:05 PM9.8 ft
Feet above mean lower low water. Times are Eastern Daylight Time. NOAA predicts this station’s highs and lows only; the curve is drawn between them. Sunrise 6:42 AM, sunset 6:16 PM.
Alerts in force
National Weather Service products for coastal flooding, storm surge, high surf and tsunami at this station’s position.
None right now. The National Weather Service issues coastal flood advisories and warnings, storm surge watches and warnings, high surf advisories and tsunami messages for water at this station.
7-day tide table
Highest tide this week 10.3 ft, Sat, Oct 10 at 11:27 AM. Lowest -0.5 ft, Sat, Oct 10 at 5:41 PM.
| Date | High and low tides | Sunrise / sunset | Moon | |||
|---|---|---|---|---|---|---|
| Sun, Oct 4 Today | High 5:48 AM 8.5 ft | Low 11:42 AM 1.3 ft | High 6:05 PM 9.8 ft | 6:42 AM / 6:16 PM | Waning crescent | |
| Mon, Oct 5 | Low 12:37 AM 0.4 ft | High 6:58 AM 8.5 ft | Low 12:54 PM 1.2 ft | High 7:17 PM 9.7 ft | 6:43 AM / 6:15 PM | Waning crescentRises 12:42 AM |
| Tue, Oct 6 | Low 1:47 AM 0.3 ft | High 8:06 AM 8.8 ft | Low 2:05 PM 1.0 ft | High 8:25 PM 9.8 ft | 6:44 AM / 6:13 PM | Waning crescentRises 1:59 AM |
| Wed, Oct 7 | Low 2:49 AM 0.1 ft | High 9:05 AM 9.3 ft | Low 3:09 PM 0.5 ft | High 9:25 PM 10.0 ft | 6:45 AM / 6:11 PM | Waning crescentRises 3:15 AM |
| Thu, Oct 8 | Low 3:42 AM -0.1 ft | High 9:57 AM 9.8 ft | Low 4:04 PM 0.0 ft | High 10:18 PM 10.1 ft | 6:47 AM / 6:09 PM | Waning crescentRises 4:28 AM |
| Fri, Oct 9 | Low 4:30 AM -0.2 ft | High 10:43 AM 10.1 ft | Low 4:54 PM -0.3 ft | High 11:08 PM 10.1 ft | 6:48 AM / 6:07 PM | Waning crescentRises 5:39 AM |
| Sat, Oct 10 | Low 5:14 AM -0.1 ft | High 11:27 AM 10.3 ft | Low 5:41 PM -0.5 ft | High 11:54 PM 9.9 ft | 6:49 AM / 6:06 PM | New moon 11:50 AMRises 6:49 AM |
Next moon phases: new moon Sat, Oct 10, first quarter Sun, Oct 18.
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The calendar holds every high and low for the next three months and keeps itself three months ahead.
What this means
Heights are feet above mean lower low water (MLLW): the average of the lower of each day’s two low tides over NOAA’s 19-year tidal epoch, and the zero of US tide tables and nautical charts. A low tide below that average is printed as a negative height.
Predictions are astronomical. They account for the moon and the sun, not the weather: onshore wind, low air pressure and high river flow hold the water above the prediction, offshore wind and high pressure hold it below.
Spring tides, the largest ranges of the month, follow the new and full moon by a day or two. Neap tides, the smallest, follow the quarter moons.
NOAA predicts the tide here from Portland (8418150), 2.4 mi away: high tide comes at the same time as at Portland, low tide at the same time as at Portland; the same height at high tide and 1.03 times the height at low tide. The times and heights above include those corrections.
Nearby8
The closest other NOAA tide stations, nearest first.
More for this place
- Forecast for South Portland, ME
- Live radar at this station
- Cumberland Area Beaches beach forecast
- October 2026 tide table
- November 2026 tide table
- December 2026 tide table
- January 2027 tide table
- Sea level rise on the map at this station
- Sea level rise and high tide flooding at Portland (2.4 mi away)
- All tide stations in Maine
Sources
Tide predictions and water levels from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS). Coastal flood, storm surge and high surf products from the National Weather Service. Station 8417988: original at NOAA.