43.0785’ N, 70.7253’ W

Seavey Island, NH

75°
H 79°
L 68°
S
8mph
High tide
11:41 am

Tides Today & Tomorrow in Seavey Island, NH

TIDE TIMES for Thursday, August 27, 2026
The tide is currently rising in Seavey Island, NH.
Next low tide : 5:32 pm (0.9 ft)
Next high tide : in 55m at 11:41 am (7.8 ft)
Sunset today : 7:26 pm
Sunrise tomorrow : 6:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8419870
Common Questions About Tides

Seavey Island, NH Tides - May 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:219.35:088.310:44-0.311:030.75:367:43Third Quarter1Sun
2Mon5:238.86:108.211:450.15:347:44Third Quarter2Mon
3Tue6:278.47:118.112:070.912:460.45:337:45Third Quarter3Tue
4Wed7:318.18:098.11:121.01:450.75:327:47Waning Crescent4Wed
5Thu8:328.09:038.32:151.02:400.85:307:48Waning Crescent5Thu
6Fri9:278.09:508.43:120.83:300.95:297:49Waning Crescent6Fri
7Sat10:168.010:328.64:020.64:140.95:287:50Waning Crescent7Sat
8Sun11:018.011:118.74:470.44:540.95:277:51New Moon8Sun
9Mon11:418.011:478.85:280.35:321.05:257:52New Moon9Mon
10Tue12:207.96:050.26:071.05:247:53New Moon10Tue
11Wed12:228.812:577.96:420.16:431.05:237:54New Moon11Wed
12Thu12:578.81:347.87:170.27:181.15:227:55New Moon12Thu
13Fri1:338.82:117.87:530.27:561.15:217:57Waxing Crescent13Fri
14Sat2:108.72:517.78:310.28:361.25:207:58Waxing Crescent14Sat
15Sun2:508.73:327.79:120.39:201.25:197:59Waxing Crescent15Sun
16Mon3:348.64:177.89:560.310:091.25:188:00Waxing Crescent16Mon
17Tue4:238.55:067.910:440.411:031.15:178:01First Quarter17Tue
18Wed5:168.45:588.111:350.45:168:02First Quarter18Wed
19Thu6:138.46:528.512:010.912:290.35:158:03First Quarter19Thu
20Fri7:148.47:488.91:010.61:260.25:148:04Waxing Gibbous20Fri
21Sat8:178.58:459.42:030.22:230.15:138:05Waxing Gibbous21Sat
22Sun9:188.79:409.93:04-0.33:20-0.15:128:06Waxing Gibbous22Sun
23Mon10:168.910:3310.34:02-0.84:14-0.35:118:07Full Moon23Mon
24Tue11:139.111:2710.54:57-1.25:08-0.55:118:08Full Moon24Tue
25Wed12:089.25:51-1.56:01-0.55:108:09Full Moon25Wed
26Thu12:2010.61:039.26:44-1.56:55-0.45:098:10Full Moon26Thu
27Fri1:1410.51:589.17:37-1.47:48-0.25:088:11Waning Gibbous27Fri
28Sat2:0810.22:528.98:30-1.18:430.15:088:11Waning Gibbous28Sat
29Sun3:029.73:478.79:24-0.79:400.55:078:12Waning Gibbous29Sun
30Mon3:599.24:438.510:19-0.310:400.85:078:13Third Quarter30Mon
31Tue4:578.75:398.411:140.211:401.05:068:14Third Quarter31Tue
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 spring phase. Tonight's moon is 100% 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 maximum.

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 Full Moon (100% illuminated). This places Seavey Island, NH in a spring tide cycle, so tidal ranges are near their weekly maximum 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