Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 5h 38m at 11:37 pm (0.8 ft)
Next high tide (tomorrow) : 5:46 am (7.8 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 - May 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:599.01:318.27:16-0.27:210.85:367:43New Moon1Mon
2Tue1:338.92:078.07:530.07:571.05:357:44Waxing Crescent2Tue
3Wed2:098.72:467.98:300.28:351.15:337:45Waxing Crescent3Wed
4Thu2:478.63:267.79:080.49:151.35:327:46Waxing Crescent4Thu
5Fri3:288.44:097.69:500.510:001.45:317:47Waxing Crescent5Fri
6Sat4:148.24:567.510:350.710:491.55:297:49First Quarter6Sat
7Sun5:038.15:457.611:220.811:421.55:287:50First Quarter7Sun
8Mon5:567.96:367.712:130.95:277:51First Quarter8Mon
9Tue6:527.97:288.012:381.31:060.85:267:52First Quarter9Tue
10Wed7:508.08:218.41:371.02:000.75:257:53Waxing Gibbous10Wed
11Thu8:498.29:138.92:350.62:540.55:237:54Waxing Gibbous11Thu
12Fri9:448.410:039.53:310.03:460.25:227:55Waxing Gibbous12Fri
13Sat10:388.710:539.94:24-0.54:37-0.15:217:56Full Moon13Sat
14Sun11:319.011:4410.25:16-1.05:27-0.35:207:57Full Moon14Sun
15Mon12:249.16:07-1.36:19-0.55:197:58Full Moon15Mon
16Tue12:3610.41:199.27:00-1.57:12-0.45:188:00Waning Gibbous16Tue
17Wed1:3010.42:149.17:53-1.58:07-0.35:178:01Waning Gibbous17Wed
18Thu2:2510.23:119.08:48-1.39:04-0.15:168:02Waning Gibbous18Thu
19Fri3:249.94:118.99:46-1.010:060.25:158:03Waning Gibbous19Fri
20Sat4:259.55:128.810:46-0.611:100.45:148:04Third Quarter20Sat
21Sun5:299.16:148.811:46-0.35:138:05Third Quarter21Sun
22Mon6:338.77:148.812:150.512:470.15:128:06Third Quarter22Mon
23Tue7:378.58:128.81:200.51:460.35:128:07Waning Crescent23Tue
24Wed8:388.39:068.92:230.42:420.55:118:08Waning Crescent24Wed
25Thu9:348.29:559.03:200.33:330.65:108:09Waning Crescent25Thu
26Fri10:248.210:389.04:110.14:190.75:098:09Waning Crescent26Fri
27Sat11:098.111:189.04:560.05:010.85:098:10New Moon27Sat
28Sun11:508.111:559.05:370.05:400.95:088:11New Moon28Sun
29Mon12:298.06:160.06:171.05:078:12New Moon29Mon
30Tue12:309.01:068.06:520.06:531.15:078:13New Moon30Tue
31Wed1:068.91:437.97:270.17:291.15:068:14Waxing Crescent31Wed
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 2:41 am — 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