Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in Seavey Island, NH.
Next low tide : in 1h 55m at 12:19 pm (0.5 ft)
Next high tide : 6:44 pm (8.7 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:03 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - Oct 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:029.42:2110.08:02-0.68:38-1.06:406:24Waning Gibbous1Sun
2Mon2:569.13:159.88:55-0.39:35-0.86:416:22Waning Gibbous2Mon
3Tue3:558.84:149.69:520.010:36-0.56:426:20Third Quarter3Tue
4Wed4:588.55:189.310:540.311:41-0.26:436:19Third Quarter4Wed
5Thu6:048.36:259.112:000.66:456:17Third Quarter5Thu
6Fri7:118.37:328.912:470.01:080.66:466:15Waning Crescent6Fri
7Sat8:168.48:388.91:530.02:150.66:476:13Waning Crescent7Sat
8Sun9:158.69:369.02:540.03:160.46:486:12Waning Crescent8Sun
9Mon10:088.810:289.03:48-0.14:100.16:496:10Waning Crescent9Mon
10Tue10:549.011:159.04:36-0.14:580.06:506:08New Moon10Tue
11Wed11:359.011:578.95:190.05:42-0.16:526:07New Moon11Wed
12Thu12:139.05:580.16:22-0.16:536:05New Moon12Thu
13Fri12:368.712:498.96:350.37:000.06:546:03New Moon13Fri
14Sat1:138.51:238.87:100.57:360.16:556:02Waxing Crescent14Sat
15Sun1:508.31:578.77:450.88:130.36:566:00Waxing Crescent15Sun
16Mon2:288.02:348.58:211.08:520.56:585:58Waxing Crescent16Mon
17Tue3:087.83:138.49:001.29:330.76:595:57Waxing Crescent17Tue
18Wed3:517.63:578.29:421.410:180.87:005:55First Quarter18Wed
19Thu4:387.44:458.110:291.611:070.97:015:53First Quarter19Thu
20Fri5:287.45:388.011:211.611:591.07:025:52First Quarter20Fri
21Sat6:217.46:348.012:171.57:045:50First Quarter21Sat
22Sun7:167.67:328.212:540.91:151.37:055:49Waxing Gibbous22Sun
23Mon8:108.08:298.41:490.72:140.97:065:47Waxing Gibbous23Mon
24Tue9:028.59:258.72:430.43:100.37:075:46Waxing Gibbous24Tue
25Wed9:519.110:179.03:340.04:03-0.37:095:44Waxing Gibbous25Wed
26Thu10:399.611:089.34:23-0.34:54-0.87:105:43Full Moon26Thu
27Fri11:2810.05:11-0.65:45-1.27:115:41Full Moon27Fri
28Sat12:009.512:1710.36:00-0.86:36-1.57:125:40Full Moon28Sat
29Sun12:529.51:0810.46:51-0.87:28-1.57:145:39Waning Gibbous29Sun
30Mon1:469.42:0110.37:43-0.68:22-1.37:155:37Waning Gibbous30Mon
31Tue2:429.12:5710.08:37-0.39:19-1.07:165:36Waning Gibbous31Tue
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 3:31 pm — 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 58% 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 First Quarter (58% 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