Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 1h 58m at 4:01 am (0.8 ft)
Next high tide : 10:11 am (7.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Mar 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:018.95:437.911:22-0.111:400.56:175:32Third Quarter1Wed
2Thu6:068.76:507.712:300.16:155:33Third Quarter2Thu
3Fri7:128.57:557.712:460.71:350.26:135:35Waning Crescent3Fri
4Sat8:138.68:527.81:490.82:340.16:125:36Waning Crescent4Sat
5Sun9:078.69:427.92:460.63:250.06:105:37Waning Crescent5Sun
6Mon9:548.710:258.13:360.54:10-0.16:085:38Waning Crescent6Mon
7Tue10:368.711:038.24:200.44:49-0.16:075:40New Moon7Tue
8Wed11:148.711:388.34:590.35:240.06:055:41New Moon8Wed
9Thu11:508.65:360.25:570.16:035:42New Moon9Thu
10Fri12:108.312:248.56:110.26:290.26:015:43New Moon10Fri
11Sat12:428.312:598.46:460.27:020.36:005:45Waxing Crescent11Sat
12Sun1:158.32:358.28:210.38:350.56:586:46Waxing Crescent12Sun
13Mon2:498.33:147.98:590.49:120.76:566:47Waxing Crescent13Mon
14Tue3:278.23:567.79:410.59:530.96:546:48Waxing Crescent14Tue
15Wed4:098.14:437.410:270.610:391.16:536:49First Quarter15Wed
16Thu4:568.15:367.211:180.711:311.26:516:51First Quarter16Thu
17Fri5:508.16:337.212:150.76:496:52First Quarter17Fri
18Sat6:498.27:357.312:291.21:170.66:476:53First Quarter18Sat
19Sun7:538.48:387.71:321.02:190.36:466:54Waxing Gibbous19Sun
20Mon8:568.89:368.22:360.63:18-0.26:446:55Waxing Gibbous20Mon
21Tue9:559.210:308.83:360.14:13-0.66:426:56Waxing Gibbous21Tue
22Wed10:509.711:219.44:32-0.65:05-1.16:406:58Full Moon22Wed
23Thu11:4410.05:26-1.15:55-1.46:396:59Full Moon23Thu
24Fri12:119.812:3710.16:19-1.56:44-1.46:377:00Full Moon24Fri
25Sat1:0110.11:3010.07:11-1.77:34-1.36:357:01Waning Gibbous25Sat
26Sun1:5210.22:239.78:04-1.68:25-1.06:337:02Waning Gibbous26Sun
27Mon2:4310.03:189.28:58-1.39:18-0.56:317:04Waning Gibbous27Mon
28Tue3:379.74:178.79:56-0.910:140.06:307:05Third Quarter28Tue
29Wed4:359.35:188.310:56-0.411:140.56:287:06Third Quarter29Wed
30Thu5:368.86:227.911:590.06:267:07Third Quarter30Thu
31Fri6:408.57:267.712:180.91:040.36:247:08Third Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

Common Questions About Seavey Island, NH Tides

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What time does the tide turn (slack tide) in Seavey Island, NH today?

Slack tide in Seavey Island, NH is approximately 7:06 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 92% 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 (92% 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