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 1h 55m 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 - Mar 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:119.611:389.24:52-0.75:21-1.06:195:31New Moon1Wed
2Thu11:569.55:39-0.86:03-0.86:175:32New Moon2Thu
3Fri12:209.112:409.26:23-0.76:44-0.56:155:33Waxing Crescent3Fri
4Sat1:009.01:218.87:07-0.57:24-0.26:145:35Waxing Crescent4Sat
5Sun1:398.82:038.47:49-0.28:040.36:125:36Waxing Crescent5Sun
6Mon2:198.52:457.98:330.28:450.76:105:37Waxing Crescent6Mon
7Tue3:008.33:317.59:180.59:291.06:095:38First Quarter7Tue
8Wed3:458.04:197.210:070.810:161.36:075:40First Quarter8Wed
9Thu4:347.85:127.010:591.111:081.66:055:41First Quarter9Thu
10Fri5:287.76:096.911:541.26:035:42First Quarter10Fri
11Sat6:257.77:076.912:041.612:521.16:025:43Waxing Gibbous11Sat
12Sun7:227.88:027.21:021.51:461.06:005:44Waxing Gibbous12Sun
13Mon8:168.18:507.61:571.22:350.75:585:46Waxing Gibbous13Mon
14Tue9:058.49:348.02:470.83:200.35:565:47Waxing Gibbous14Tue
15Wed9:518.710:158.43:340.34:010.05:555:48Full Moon15Wed
16Thu10:348.910:568.94:18-0.14:42-0.35:535:49Full Moon16Thu
17Fri11:189.111:389.25:02-0.55:23-0.55:515:50Full Moon17Fri
18Sat12:039.15:47-0.86:06-0.65:495:52Full Moon18Sat
19Sun12:219.512:509.06:33-1.06:50-0.65:485:53Waning Gibbous19Sun
20Mon1:079.61:398.97:22-1.07:39-0.45:465:54Waning Gibbous20Mon
21Tue1:569.52:328.68:15-0.88:31-0.15:445:55Waning Gibbous21Tue
22Wed2:509.33:318.39:12-0.69:300.25:425:56Third Quarter22Wed
23Thu3:509.14:368.110:15-0.310:330.45:415:58Third Quarter23Thu
24Fri4:568.95:447.911:21-0.111:410.65:395:59Third Quarter24Fri
25Sat6:068.86:548.012:290.05:376:00Waning Crescent25Sat
26Sun7:168.87:598.312:510.51:35-0.15:356:01Waning Crescent26Sun
27Mon8:208.98:568.61:570.32:35-0.35:336:02Waning Crescent27Mon
28Tue9:179.19:478.92:57-0.13:27-0.45:326:03Waning Crescent28Tue
29Wed10:089.210:329.13:49-0.44:14-0.55:306:05New Moon29Wed
30Thu10:549.111:149.24:37-0.64:57-0.45:286:06New Moon30Thu
31Fri11:379.011:529.25:21-0.65:37-0.25:266:07New Moon31Fri
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