Nearby Harbors
43.0785’ N, 70.7253’ W

Seavey Island, NH

66°
H 80°
L 59°
SW
1mph
High tide
9:36 am
Photo Credits

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Monday, August 24, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 3:23 pm (1.7 ft)
Next high tide : in 3h 24m at 9:36 am (7.0 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 5:58 am
Moon phase : Waxing Gibbous (88% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

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Seavey Island, NH Tides - Apr 2052

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:499.91:219.57:04-1.47:22-0.96:237:09Waxing Crescent1Mon
2Tue1:3810.12:139.37:55-1.58:12-0.76:217:11Waxing Crescent2Tue
3Wed2:3010.03:089.18:49-1.39:06-0.46:197:12Waxing Crescent3Wed
4Thu3:259.74:078.79:46-1.010:040.06:177:13First Quarter4Thu
5Fri4:259.45:108.410:47-0.611:070.36:167:14First Quarter5Fri
6Sat5:299.16:168.211:52-0.36:147:15First Quarter6Sat
7Sun6:378.87:238.212:140.612:590.06:127:16First Quarter7Sun
8Mon7:458.68:288.31:220.62:040.16:107:18Waxing Gibbous8Mon
9Tue8:508.69:268.52:280.53:040.16:097:19Waxing Gibbous9Tue
10Wed9:488.710:168.73:280.33:570.06:077:20Waxing Gibbous10Wed
11Thu10:388.711:018.84:210.14:430.06:057:21Waxing Gibbous11Thu
12Fri11:238.711:408.95:07-0.15:250.16:047:22Full Moon12Fri
13Sat12:048.65:49-0.26:030.26:027:23Full Moon13Sat
14Sun12:178.912:418.56:27-0.26:380.46:007:25Full Moon14Sun
15Mon12:518.91:178.37:03-0.17:120.55:597:26Full Moon15Mon
16Tue1:248.81:538.27:390.07:460.75:577:27Waning Gibbous16Tue
17Wed1:588.72:308.08:140.18:220.95:557:28Waning Gibbous17Wed
18Thu2:348.63:097.88:520.39:001.15:547:29Waning Gibbous18Thu
19Fri3:138.43:517.69:320.49:421.35:527:30Waning Gibbous19Fri
20Sat3:568.34:377.510:170.610:291.45:517:32Third Quarter20Sat
21Sun4:448.15:267.411:050.711:211.45:497:33Third Quarter21Sun
22Mon5:368.06:197.511:570.85:487:34Third Quarter22Mon
23Tue6:338.07:147.712:171.412:520.85:467:35Third Quarter23Tue
24Wed7:328.18:108.11:171.11:480.65:457:36Waning Crescent24Wed
25Thu8:328.49:048.62:170.72:440.35:437:37Waning Crescent25Thu
26Fri9:308.79:559.23:150.13:370.05:427:39Waning Crescent26Fri
27Sat10:249.010:459.74:10-0.54:29-0.45:407:40New Moon27Sat
28Sun11:189.311:3510.25:03-1.05:19-0.65:397:41New Moon28Sun
29Mon12:119.45:54-1.46:10-0.85:377:42New Moon29Mon
30Tue12:2610.41:059.56:47-1.67:01-0.75:367:43New Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

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The US Harbors tide chart design is protected by copyright. It may be printed for personal use only.
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Common Questions About Seavey Island, NH Tides

Collapse All
Is this week a spring tide or neap tide in Seavey Island, NH?

Seavey Island, NH is currently in a spring phase. Tonight's moon is 88% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Seavey Island, NH tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Seavey Island, NH?

Tide predictions for Seavey Island, NH come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Seavey Island, NH?

Tide data for Seavey Island, NH is sourced from NOAA Station #8419870. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8419870.

What is the moon phase in Seavey Island, NH tonight?

Tonight the moon over Seavey Island, NH is Waxing Gibbous (88% illuminated). This places Seavey Island, NH in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA

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