Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 11:37 pm (0.8 ft)
Next high tide : in 5h 46m at 5:22 pm (8.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Nov 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:028.56:248.812:030.56:174:35Waxing Gibbous1Wed
2Thu7:058.77:298.812:390.01:100.36:184:34Waxing Gibbous2Thu
3Fri8:039.08:298.81:390.02:110.06:194:33Waxing Gibbous3Fri
4Sat8:569.29:228.82:340.03:06-0.36:214:31Waxing Gibbous4Sat
5Sun9:439.410:118.83:230.03:55-0.46:224:30Full Moon5Sun
6Mon10:269.410:558.74:080.14:40-0.56:234:29Full Moon6Mon
7Tue11:069.411:378.54:500.25:22-0.46:244:28Full Moon7Tue
8Wed11:449.25:290.46:01-0.36:264:27Full Moon8Wed
9Thu12:168.312:209.06:070.66:40-0.16:274:25Waning Gibbous9Thu
10Fri12:548.112:578.86:440.97:180.16:284:24Waning Gibbous10Fri
11Sat1:337.91:358.67:221.17:570.46:304:23Waning Gibbous11Sat
12Sun2:137.72:168.48:031.38:380.66:314:22Waning Gibbous12Sun
13Mon2:567.63:018.28:471.59:220.86:324:21Third Quarter13Mon
14Tue3:427.53:498.09:351.610:090.96:334:20Third Quarter14Tue
15Wed4:317.54:417.810:271.610:581.06:354:19Third Quarter15Wed
16Thu5:207.65:367.811:221.511:491.06:364:18Third Quarter16Thu
17Fri6:127.86:327.812:191.26:374:17Waning Crescent17Fri
18Sat7:038.27:297.912:410.91:150.86:384:17Waning Crescent18Sat
19Sun7:538.68:238.21:330.72:100.36:404:16Waning Crescent19Sun
20Mon8:429.19:158.42:230.43:01-0.26:414:15Waning Crescent20Mon
21Tue9:309.610:058.73:130.13:52-0.76:424:14New Moon21Tue
22Wed10:1810.010:568.84:01-0.24:41-1.16:434:14New Moon22Wed
23Thu11:0810.211:488.94:51-0.45:32-1.36:454:13New Moon23Thu
24Fri12:0010.35:42-0.46:23-1.46:464:12Waxing Crescent24Fri
25Sat12:429.012:5410.26:35-0.47:17-1.36:474:12Waxing Crescent25Sat
26Sun1:378.91:509.97:31-0.28:12-1.16:484:11Waxing Crescent26Sun
27Mon2:368.82:509.68:310.09:11-0.86:494:11First Quarter27Mon
28Tue3:378.83:549.29:340.210:12-0.46:504:10First Quarter28Tue
29Wed4:398.74:598.810:400.311:14-0.16:524:10First Quarter29Wed
30Thu5:418.76:058.511:470.46:534:09First Quarter30Thu
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 8:29 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Seavey Island, NH in a neap tide cycle, so tidal ranges are near their weekly minimum 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