Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide (tomorrow) : 7:41 am (0.3 ft)
Next high tide (tomorrow) : in 4h 10m at 1:17 am (8.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Jun 2005

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:358.58:128.91:190.61:450.25:058:15Waning Crescent1Wed
2Thu8:398.49:079.22:230.32:420.35:058:16Waning Crescent2Thu
3Fri9:388.39:579.33:230.03:350.45:058:17Waning Crescent3Fri
4Sat10:318.310:439.44:16-0.24:240.65:048:17Waning Crescent4Sat
5Sun11:218.211:279.45:05-0.35:090.75:048:18New Moon5Sun
6Mon12:068.15:51-0.35:520.95:038:19New Moon6Mon
7Tue12:089.312:497.96:33-0.26:331.15:038:19New Moon7Tue
8Wed12:479.11:297.87:14-0.17:121.25:038:20New Moon8Wed
9Thu1:268.92:097.67:530.17:511.45:038:21Waxing Crescent9Thu
10Fri2:048.72:487.58:320.38:311.65:038:21Waxing Crescent10Fri
11Sat2:448.53:297.49:110.59:141.75:028:22Waxing Crescent11Sat
12Sun3:278.34:117.49:520.79:591.85:028:22Waxing Crescent12Sun
13Mon4:128.14:557.510:340.910:481.85:028:23First Quarter13Mon
14Tue4:597.95:407.611:171.011:391.75:028:23First Quarter14Tue
15Wed5:507.76:257.812:021.15:028:24First Quarter15Wed
16Thu6:437.57:138.012:331.512:501.25:028:24First Quarter16Thu
17Fri7:397.48:028.41:291.31:391.35:028:24Waxing Gibbous17Fri
18Sat8:367.48:528.72:250.92:311.25:028:25Waxing Gibbous18Sat
19Sun9:327.59:429.13:200.53:231.15:038:25Waxing Gibbous19Sun
20Mon10:267.710:329.54:130.04:140.95:038:25Full Moon20Mon
21Tue11:197.911:249.85:05-0.45:060.75:038:25Full Moon21Tue
22Wed12:138.15:56-0.75:590.55:038:26Full Moon22Wed
23Thu12:1810.01:078.36:49-0.96:540.35:048:26Full Moon23Thu
24Fri1:1310.12:028.47:41-1.07:490.35:048:26Waning Gibbous24Fri
25Sat2:0910.02:588.68:35-0.98:470.35:048:26Waning Gibbous25Sat
26Sun3:079.73:558.79:30-0.89:480.35:058:26Waning Gibbous26Sun
27Mon4:079.44:538.810:26-0.510:520.45:058:26Third Quarter27Mon
28Tue5:089.05:508.911:23-0.211:560.45:058:26Third Quarter28Tue
29Wed6:118.66:479.012:200.15:068:26Third Quarter29Wed
30Thu7:148.37:449.01:000.41:170.45:068:26Waning Crescent30Thu
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 4:29 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 spring phase. Tonight's moon is 97% 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 maximum.

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 Full Moon (97% illuminated). This places Seavey Island, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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