43.0785’ N, 70.7253’ W

Seavey Island, NH

75°
H 80°
L 61°
NW
3mph
Low tide
11:05 am

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Friday, September 4, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 0m at 11:05 am (0.9 ft)
Next high tide : 5:28 pm (8.9 ft)
Sunset today : 7:12 pm
Sunrise tomorrow : 6:10 am
Moon phase : Third Quarter (46% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Jan 1905

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:149.17:508.212:470.01:33-0.27:144:18Waning Crescent1Sun
2Mon8:139.38:518.21:470.12:34-0.47:144:19Waning Crescent2Mon
3Tue9:089.59:478.32:440.13:30-0.77:144:20Waning Crescent3Tue
4Wed9:599.610:388.43:380.14:21-0.87:144:21New Moon4Wed
5Thu10:479.611:268.34:270.15:08-0.87:144:22New Moon5Thu
6Fri11:339.55:140.15:53-0.77:144:23New Moon6Fri
7Sat12:118.312:169.35:590.36:35-0.67:144:24Waxing Crescent7Sat
8Sun12:538.212:589.06:420.47:16-0.37:144:25Waxing Crescent8Sun
9Mon1:348.01:398.77:250.67:570.07:144:26Waxing Crescent9Mon
10Tue2:167.92:228.38:090.88:380.37:134:27Waxing Crescent10Tue
11Wed2:587.83:077.98:561.09:210.67:134:28Waxing Crescent11Wed
12Thu3:427.73:557.69:451.210:060.87:134:29First Quarter12Thu
13Fri4:287.74:467.310:361.310:531.17:124:30First Quarter13Fri
14Sat5:177.75:417.111:301.311:431.27:124:31First Quarter14Sat
15Sun6:087.76:387.012:271.27:114:32First Quarter15Sun
16Mon7:007.97:367.012:351.31:231.07:114:34Waxing Gibbous16Mon
17Tue7:528.28:307.21:281.22:160.67:104:35Waxing Gibbous17Tue
18Wed8:418.69:207.52:191.03:050.27:104:36Waxing Gibbous18Wed
19Thu9:289.010:077.93:080.73:51-0.37:094:37Full Moon19Thu
20Fri10:149.410:538.23:550.34:37-0.77:094:39Full Moon20Fri
21Sat11:009.711:398.64:42-0.15:22-1.17:084:40Full Moon21Sat
22Sun11:489.95:30-0.46:07-1.37:074:41Full Moon22Sun
23Mon12:258.812:369.96:19-0.66:54-1.47:064:42Waning Gibbous23Mon
24Tue1:139.01:279.87:10-0.77:42-1.37:064:44Waning Gibbous24Tue
25Wed2:029.12:209.58:03-0.68:33-1.17:054:45Waning Gibbous25Wed
26Thu2:559.23:179.19:00-0.59:27-0.77:044:46Third Quarter26Thu
27Fri3:519.14:188.610:01-0.310:25-0.37:034:48Third Quarter27Fri
28Sat4:509.05:228.211:05-0.111:250.07:024:49Third Quarter28Sat
29Sun5:528.96:307.912:110.07:014:50Third Quarter29Sun
30Mon6:568.97:377.812:280.31:180.07:004:52Waning Crescent30Mon
31Tue7:588.98:407.81:310.52:21-0.26:594:53Waning Crescent31Tue
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 neap phase. Tonight's moon is 46% 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 (46% 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