43.0785’ N, 70.7253’ W

Seavey Island, NH

78°
H 80°
L 61°
NW
5mph
High tide
5:28 pm

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Friday, September 4, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide (tomorrow) : 12:00 am (0.4 ft)
Next high tide : in 5h 53m at 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 - Dec 1904

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:308.65:538.611:370.46:544:09Third Quarter1Thu
2Fri6:318.96:598.612:05-0.112:430.16:554:09Waning Crescent2Fri
3Sat7:319.28:038.61:06-0.11:46-0.26:564:08Waning Crescent3Sat
4Sun8:289.69:028.82:04-0.22:46-0.66:574:08Waning Crescent4Sun
5Mon9:219.99:578.93:00-0.33:40-1.06:584:08New Moon5Mon
6Tue10:1210.010:508.93:52-0.34:32-1.26:594:08New Moon6Tue
7Wed11:0110.011:408.84:42-0.35:22-1.27:004:08New Moon7Wed
8Thu11:489.95:30-0.26:09-1.07:014:08New Moon8Thu
9Fri12:288.712:359.66:170.16:55-0.87:024:08Waxing Crescent9Fri
10Sat1:158.41:209.37:040.47:41-0.47:034:08Waxing Crescent10Sat
11Sun2:018.22:078.87:520.78:280.07:044:08Waxing Crescent11Sun
12Mon2:498.02:558.48:411.09:150.37:054:08Waxing Crescent12Mon
13Tue3:377.83:468.09:331.210:040.77:064:08First Quarter13Tue
14Wed4:277.74:387.710:271.410:530.97:064:08First Quarter14Wed
15Thu5:177.75:337.411:231.511:441.17:074:08First Quarter15Thu
16Fri6:087.76:307.312:191.47:084:09First Quarter16Fri
17Sat6:597.97:257.312:341.21:151.27:084:09Waxing Gibbous17Sat
18Sun7:488.18:187.41:241.22:060.97:094:09Waxing Gibbous18Sun
19Mon8:338.49:067.52:121.12:540.67:104:10Waxing Gibbous19Mon
20Tue9:168.79:517.72:570.93:370.27:104:10Waxing Gibbous20Tue
21Wed9:579.010:347.93:390.74:19-0.17:114:10Full Moon21Wed
22Thu10:399.211:178.14:220.55:01-0.57:114:11Full Moon22Thu
23Fri11:219.45:050.35:43-0.77:124:12Full Moon23Fri
24Sat12:008.312:059.65:490.26:27-0.97:124:12Waning Gibbous24Sat
25Sun12:458.412:529.66:350.07:12-0.97:134:13Waning Gibbous25Sun
26Mon1:328.51:419.57:250.08:00-0.97:134:13Waning Gibbous26Mon
27Tue2:218.62:349.38:180.08:52-0.77:134:14Waning Gibbous27Tue
28Wed3:158.73:319.09:150.19:47-0.57:144:15Third Quarter28Wed
29Thu4:118.84:328.610:170.110:44-0.37:144:15Third Quarter29Thu
30Fri5:108.95:378.411:210.111:44-0.17:144:16Third Quarter30Fri
31Sat6:119.06:448.212:270.07:144:17Waning Crescent31Sat
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