Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 5h 00m at 7:41 pm (1.3 ft)
Next high tide (tomorrow) : 1:55 am (8.7 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Gibbous (94% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Oct 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:486.97:577.81:321.41:392.06:416:23Waxing Gibbous1Sat
2Sun8:417.18:508.02:261.32:341.76:426:21Waxing Gibbous2Sun
3Mon9:277.59:398.23:131.13:251.46:436:19Waxing Gibbous3Mon
4Tue10:097.910:238.43:550.84:100.96:446:18Waxing Gibbous4Tue
5Wed10:478.311:058.54:330.64:520.56:456:16Full Moon5Wed
6Thu11:238.711:468.65:100.55:330.16:466:14Full Moon6Thu
7Fri12:009.05:460.36:14-0.26:486:12Full Moon7Fri
8Sat12:288.612:399.36:250.36:57-0.46:496:11Full Moon8Sat
9Sun1:118.51:209.47:050.37:42-0.46:506:09Waning Gibbous9Sun
10Mon1:568.32:059.47:490.48:30-0.36:516:07Waning Gibbous10Mon
11Tue2:468.12:559.38:380.69:24-0.16:526:06Waning Gibbous11Tue
12Wed3:417.83:529.19:320.910:240.16:536:04Third Quarter12Wed
13Thu4:447.64:568.910:341.111:290.36:556:02Third Quarter13Thu
14Fri5:517.56:068.711:421.26:566:01Third Quarter14Fri
15Sat7:017.77:178.712:360.312:541.16:575:59Waning Crescent15Sat
16Sun8:088.08:268.81:430.32:040.86:585:57Waning Crescent16Sun
17Mon9:088.59:299.02:450.13:090.46:595:56Waning Crescent17Mon
18Tue10:018.910:249.13:40-0.14:06-0.17:015:54Waning Crescent18Tue
19Wed10:499.311:159.14:30-0.24:58-0.47:025:53New Moon19Wed
20Thu11:339.55:16-0.25:45-0.67:035:51New Moon20Thu
21Fri12:029.012:159.55:590.06:30-0.67:045:49New Moon21Fri
22Sat12:468.712:549.46:400.37:13-0.57:065:48New Moon22Sat
23Sun1:298.41:339.27:200.67:55-0.27:075:46Waxing Crescent23Sun
24Mon2:118.12:138.97:591.08:370.27:085:45Waxing Crescent24Mon
25Tue2:537.72:538.68:401.39:200.57:095:43Waxing Crescent25Tue
26Wed3:377.43:388.39:231.610:070.97:115:42Waxing Crescent26Wed
27Thu4:247.14:268.010:101.910:561.17:125:41First Quarter27Thu
28Fri5:157.05:187.811:022.011:481.37:135:39First Quarter28Fri
29Sat6:077.06:137.711:572.07:145:38First Quarter29Sat
30Sun7:007.17:097.712:391.312:541.97:165:36First Quarter30Sun
31Mon7:517.48:057.81:311.31:511.67:175:35Waxing Gibbous31Mon
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 10:48 pm — 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 94% 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 Waning Gibbous (94% 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