Nearby Harbors
43.0783’ N, 70.7517’ W

Portsmouth, NH

62°
H 67°
L 54°
SSW
3mph
High tide
8:57 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, NH

TIDE TIMES for Friday, November 6, 2026
The tide is currently rising in Portsmouth, NH.
Next low tide : 3:09 pm (0.0 ft)
Next high tide : in 2h 08m at 8:57 am (8.5 ft)
Sunset today : 4:28 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Crescent (7% illuminated)
Tide Station Location : Station #8423745
Common Questions About Tides

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Portsmouth, NH Tides - Feb 1815

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:578.25:297.511:100.311:280.67:034:58Third Quarter1Wed
2Thu5:558.06:337.112:150.57:025:00Third Quarter2Thu
3Fri6:547.87:376.912:291.01:200.57:005:01Waning Crescent3Fri
4Sat7:537.88:356.91:301.22:190.56:595:02Waning Crescent4Sat
5Sun8:467.99:267.02:261.23:110.36:585:04Waning Crescent5Sun
6Mon9:338.010:117.23:161.13:570.26:575:05Waning Crescent6Mon
7Tue10:178.210:537.33:590.94:370.16:565:06New Moon7Tue
8Wed10:578.311:317.44:390.85:140.06:555:08New Moon8Wed
9Thu11:348.35:160.75:48-0.16:535:09New Moon9Thu
10Fri12:067.512:098.35:510.66:20-0.16:525:10New Moon10Fri
11Sat12:397.612:438.36:260.56:52-0.16:515:12Waxing Crescent11Sat
12Sun1:117.71:178.27:010.57:250.06:495:13Waxing Crescent12Sun
13Mon1:437.71:538.07:380.48:000.16:485:14Waxing Crescent13Mon
14Tue2:187.82:337.88:190.48:390.36:475:16Waxing Crescent14Tue
15Wed2:577.93:197.59:050.49:230.46:455:17First Quarter15Wed
16Thu3:427.94:117.39:560.410:120.66:445:18First Quarter16Thu
17Fri4:338.05:097.110:520.411:070.76:425:19First Quarter17Fri
18Sat5:308.16:147.111:540.36:415:21First Quarter18Sat
19Sun6:348.37:237.212:090.81:020.16:395:22Waxing Gibbous19Sun
20Mon7:418.68:297.51:150.62:08-0.36:385:23Waxing Gibbous20Mon
21Tue8:459.09:298.02:200.23:09-0.86:365:25Waxing Gibbous21Tue
22Wed9:449.410:248.53:20-0.24:04-1.26:355:26Full Moon22Wed
23Thu10:409.711:178.84:17-0.64:57-1.56:335:27Full Moon23Thu
24Fri11:349.95:11-1.05:47-1.66:325:29Full Moon24Fri
25Sat12:079.112:269.86:04-1.16:36-1.56:305:30Waning Gibbous25Sat
26Sun12:569.21:169.46:56-1.17:23-1.16:285:31Waning Gibbous26Sun
27Mon1:439.12:078.97:47-0.98:11-0.76:275:32Waning Gibbous27Mon
28Tue2:328.83:018.48:40-0.59:01-0.16:255:34Waning Gibbous28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8423745)

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Common Questions About Portsmouth, NH Tides

Collapse All
Is this week a spring tide or neap tide in Portsmouth, NH?

Portsmouth, NH is currently in a spring phase. Tonight's moon is 7% 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 Portsmouth, 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 Portsmouth, NH?

Tide predictions for Portsmouth, 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 Portsmouth, NH?

Tide data for Portsmouth, NH is sourced from NOAA Station #8423745. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8423745.

What is the moon phase in Portsmouth, NH tonight?

Tonight the moon over Portsmouth, NH is Waning Crescent (7% illuminated). This places Portsmouth, 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

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