Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 2h 33m at 9:32 am (0.4 ft)
Next high tide : 3:53 pm (8.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Dec 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:208.710:567.64:051.14:440.26:544:09Full Moon1Sun
2Mon10:568.711:337.64:421.15:200.16:554:08Full Moon2Mon
3Tue11:318.85:171.25:560.16:564:08Full Moon3Tue
4Wed12:117.612:088.75:531.26:310.16:574:08Waning Gibbous4Wed
5Thu12:487.612:458.76:301.27:080.26:584:08Waning Gibbous5Thu
6Fri1:267.51:258.67:101.27:470.26:594:08Waning Gibbous6Fri
7Sat2:067.62:078.57:531.28:280.37:004:07Waning Gibbous7Sat
8Sun2:487.72:548.38:401.19:130.37:014:07Third Quarter8Sun
9Mon3:347.93:458.29:331.010:010.47:024:07Third Quarter9Mon
10Tue4:238.14:418.010:290.910:530.47:034:07Third Quarter10Tue
11Wed5:168.45:417.911:300.611:480.47:044:07Third Quarter11Wed
12Thu6:118.76:447.912:320.37:054:08Waning Crescent12Thu
13Fri7:109.17:488.012:470.41:35-0.17:054:08Waning Crescent13Fri
14Sat8:089.68:508.21:460.22:36-0.67:064:08Waning Crescent14Sat
15Sun9:0510.09:488.52:440.03:33-1.17:074:08New Moon15Sun
16Mon10:0010.210:458.63:41-0.24:29-1.47:084:08New Moon16Mon
17Tue10:5510.411:408.74:36-0.35:22-1.57:084:09New Moon17Tue
18Wed11:5010.35:30-0.46:15-1.57:094:09Waxing Crescent18Wed
19Thu12:358.712:4410.16:24-0.37:07-1.27:094:09Waxing Crescent19Thu
20Fri1:288.71:389.77:19-0.17:59-0.97:104:10Waxing Crescent20Fri
21Sat2:218.62:339.28:150.28:52-0.47:114:10Waxing Crescent21Sat
22Sun3:148.43:298.69:120.59:440.17:114:11First Quarter22Sun
23Mon4:088.34:268.110:120.710:370.57:114:11First Quarter23Mon
24Tue5:018.15:237.611:120.911:300.97:124:12First Quarter24Tue
25Wed5:548.06:227.312:111.07:124:13First Quarter25Wed
26Thu6:478.07:207.112:231.21:101.07:134:13Waxing Gibbous26Thu
27Fri7:388.18:157.01:161.42:050.97:134:14Waxing Gibbous27Fri
28Sat8:268.29:047.12:061.52:540.77:134:15Waxing Gibbous28Sat
29Sun9:108.39:497.22:521.43:380.57:134:15Waxing Gibbous29Sun
30Mon9:518.510:307.33:351.34:180.37:144:16Full Moon30Mon
31Tue10:308.611:057.54:141.24:560.17:144:17Full Moon31Tue
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 12:42 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places Seavey Island, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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