43.0785’ N, 70.7253’ W

Seavey Island, NH

64°
H -°
L 60°
NW
4mph
High tide
6:15 am

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Saturday, September 5, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 12:09 pm (1.1 ft)
Next high tide : in 3h 56m at 6:15 am (7.4 ft)
Sunset today : 7:11 pm
Sunrise tomorrow : 6:11 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Mar 1900

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:4910.011:189.74:31-1.15:02-1.56:195:31New Moon1Thu
2Fri11:4210.15:23-1.55:50-1.56:175:32New Moon2Fri
3Sat12:0710.012:339.96:15-1.66:38-1.46:155:34Waxing Crescent3Sat
4Sun12:5710.11:269.67:08-1.57:28-1.16:145:35Waxing Crescent4Sun
5Mon1:479.92:209.18:01-1.28:19-0.66:125:36Waxing Crescent5Mon
6Tue2:409.63:178.58:58-0.89:140.06:105:37First Quarter6Tue
7Wed3:379.24:188.09:59-0.310:130.56:095:39First Quarter7Wed
8Thu4:378.75:237.511:030.211:161.06:075:40First Quarter8Thu
9Fri5:428.46:297.312:090.56:055:41First Quarter9Fri
10Sat6:488.27:347.312:221.21:140.66:045:42Waxing Gibbous10Sat
11Sun7:518.18:317.41:271.22:130.66:025:43Waxing Gibbous11Sun
12Mon8:468.29:197.72:251.13:040.56:005:45Waxing Gibbous12Mon
13Tue9:348.310:017.93:150.83:470.45:585:46Waxing Gibbous13Tue
14Wed10:168.410:398.13:590.64:250.45:575:47Full Moon14Wed
15Thu10:548.411:138.34:390.45:000.35:555:48Full Moon15Thu
16Fri11:308.411:468.45:160.35:320.35:535:49Full Moon16Fri
17Sat12:058.35:510.26:040.45:515:51Full Moon17Sat
18Sun12:188.512:408.16:260.16:360.55:495:52Waning Gibbous18Sun
19Mon12:508.51:168.07:010.27:100.65:485:53Waning Gibbous19Mon
20Tue1:258.51:547.87:390.27:470.85:465:54Waning Gibbous20Tue
21Wed2:028.52:357.58:200.38:290.95:445:55Waning Gibbous21Wed
22Thu2:458.43:227.49:070.49:161.05:425:57Third Quarter22Thu
23Fri3:338.44:157.39:590.510:101.15:415:58Third Quarter23Fri
24Sat4:298.35:147.310:560.511:101.15:395:59Third Quarter24Sat
25Sun5:308.46:177.511:570.45:376:00Third Quarter25Sun
26Mon6:358.67:197.912:140.91:000.25:356:01Waning Crescent26Mon
27Tue7:408.98:188.51:200.52:00-0.25:336:02Waning Crescent27Tue
28Wed8:419.29:139.12:22-0.12:55-0.65:326:04Waning Crescent28Wed
29Thu9:379.610:049.73:19-0.73:47-0.95:306:05New Moon29Thu
30Fri10:319.810:5410.14:14-1.34:37-1.15:286:06New Moon30Fri
31Sat11:249.811:4310.35:06-1.65:26-1.25:266:07New Moon31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8419870)

Common Questions About Seavey Island, NH Tides

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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 35% 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 Third Quarter (35% 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