Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide (tomorrow) : 12:35 am (0.6 ft)
Next high tide : in 2h 37m at 6:13 pm (8.8 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Nov 2052

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:577.67:138.012:350.912:581.37:185:34First Quarter1Fri
2Sat7:518.08:118.21:280.81:561.07:195:32Waxing Gibbous2Sat
3Sun7:438.48:078.41:220.61:530.56:214:31Waxing Gibbous3Sun
4Mon8:329.09:008.72:130.32:46-0.16:224:30Waxing Gibbous4Mon
5Tue9:209.59:519.03:03-0.13:37-0.76:234:29Full Moon5Tue
6Wed10:0810.010:429.23:52-0.44:28-1.16:254:27Full Moon6Wed
7Thu10:5710.311:349.34:41-0.65:18-1.46:264:26Full Moon7Thu
8Fri11:4810.45:31-0.76:10-1.56:274:25Waning Gibbous8Fri
9Sat12:289.212:4110.36:23-0.67:04-1.46:284:24Waning Gibbous9Sat
10Sun1:239.11:3710.17:18-0.47:59-1.26:304:23Waning Gibbous10Sun
11Mon2:218.92:369.78:16-0.18:59-0.86:314:22Waning Gibbous11Mon
12Tue3:238.73:399.39:180.210:01-0.56:324:21Third Quarter12Tue
13Wed4:268.64:459.010:240.511:03-0.26:344:20Third Quarter13Wed
14Thu5:308.55:518.711:310.66:354:19Third Quarter14Thu
15Fri6:328.66:568.512:060.112:370.56:364:18Waning Crescent15Fri
16Sat7:318.77:568.41:060.21:390.46:374:17Waning Crescent16Sat
17Sun8:248.98:508.42:010.32:350.26:394:16Waning Crescent17Sun
18Mon9:119.09:388.32:510.43:240.06:404:16Waning Crescent18Mon
19Tue9:539.010:218.33:350.44:08-0.16:414:15New Moon19Tue
20Wed10:319.011:018.24:160.54:48-0.16:424:14New Moon20Wed
21Thu11:079.011:398.14:530.65:25-0.16:434:13New Moon21Thu
22Fri11:418.95:290.86:010.06:454:13New Moon22Fri
23Sat12:158.012:168.86:040.96:360.16:464:12Waxing Crescent23Sat
24Sun12:527.912:528.76:401.07:120.26:474:12Waxing Crescent24Sun
25Mon1:297.81:308.67:171.17:500.36:484:11Waxing Crescent25Mon
26Tue2:097.72:118.47:581.28:310.46:494:10Waxing Crescent26Tue
27Wed2:517.62:568.38:421.39:150.56:514:10First Quarter27Wed
28Thu3:377.73:458.19:311.310:020.66:524:10First Quarter28Thu
29Fri4:257.84:388.010:251.210:520.66:534:09First Quarter29Fri
30Sat5:168.05:348.011:221.011:460.66:544:09First Quarter30Sat
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 9:24 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 41% 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 (41% 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