Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide (tomorrow) : in 6h 01m at 12:35 am (0.6 ft)
Next high tide (tomorrow) : 6:45 am (7.7 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Jan 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:4210.311:249.04:22-0.65:05-1.67:144:18New Moon1Sun
2Mon11:3610.45:16-0.75:57-1.77:144:19New Moon2Mon
3Tue12:179.112:2910.26:10-0.76:48-1.57:144:20Waxing Crescent3Tue
4Wed1:089.11:219.87:02-0.57:38-1.27:144:21Waxing Crescent4Wed
5Thu1:599.02:139.47:56-0.38:28-0.77:144:22Waxing Crescent5Thu
6Fri2:508.83:068.88:500.19:18-0.27:144:23First Quarter6Fri
7Sat3:418.54:008.39:460.410:090.27:144:24First Quarter7Sat
8Sun4:338.34:547.810:430.711:010.77:144:25First Quarter8Sun
9Mon5:258.15:517.411:410.911:541.07:134:26First Quarter9Mon
10Tue6:178.06:487.212:390.97:134:27First Quarter10Tue
11Wed7:108.07:447.112:471.21:350.97:134:28Waxing Gibbous11Wed
12Thu8:018.18:367.21:391.32:260.77:124:29Waxing Gibbous12Thu
13Fri8:478.39:227.32:281.23:130.57:124:30Waxing Gibbous13Fri
14Sat9:308.510:057.53:121.13:540.37:124:31Waxing Gibbous14Sat
15Sun10:108.710:457.73:540.94:330.17:114:32Full Moon15Sun
16Mon10:498.811:237.84:330.75:09-0.17:114:34Full Moon16Mon
17Tue11:278.95:110.55:45-0.27:104:35Full Moon17Tue
18Wed12:008.012:058.95:500.46:21-0.37:104:36Full Moon18Wed
19Thu12:378.112:448.96:300.36:58-0.47:094:37Waning Gibbous19Thu
20Fri1:158.31:268.87:120.27:38-0.37:084:39Waning Gibbous20Fri
21Sat1:558.42:108.67:570.18:21-0.37:084:40Waning Gibbous21Sat
22Sun2:408.63:008.48:470.19:09-0.17:074:41Third Quarter22Sun
23Mon3:298.63:558.19:430.110:020.17:064:42Third Quarter23Mon
24Tue4:248.74:567.910:430.211:010.27:054:44Third Quarter24Tue
25Wed5:248.86:037.711:480.17:044:45Third Quarter25Wed
26Thu6:298.97:137.812:040.312:56-0.17:044:46Waning Crescent26Thu
27Fri7:359.28:208.01:100.32:03-0.47:034:48Waning Crescent27Fri
28Sat8:399.59:228.42:150.03:04-0.87:024:49Waning Crescent28Sat
29Sun9:389.810:188.73:15-0.34:00-1.27:014:50New Moon29Sun
30Mon10:3210.011:109.04:12-0.64:52-1.47:004:52New Moon30Mon
31Tue11:2410.05:04-0.85:40-1.46:594:53New Moon31Tue
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 3:40 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 41% 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 (41% 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