Nearby Harbors
43.0783’ N, 70.7517’ W

Portsmouth, NH

59°
H -°
L 54°
NNE
9mph
Low tide
3:24 am
Photo Credits

Tides Today & Tomorrow in Portsmouth, NH

TIDE TIMES for Saturday, November 7, 2026
The tide is currently falling in Portsmouth, NH.
Next low tide : in 2h 21m at 3:24 am (0.3 ft)
Next high tide : 9:43 am (8.7 ft)
Sunset today : 4:27 pm
Sunrise tomorrow : 6:25 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8423745
Common Questions About Tides

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Portsmouth, NH Tides - Nov 1812

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:308.29:528.03:140.53:380.46:224:39Waning Crescent1Sun
2Mon10:098.310:338.03:530.54:180.26:234:38New Moon2Mon
3Tue10:458.411:118.04:290.54:550.16:244:36New Moon3Tue
4Wed11:208.511:487.95:030.65:300.16:254:35New Moon4Wed
5Thu11:538.45:360.76:040.16:274:34New Moon5Thu
6Fri12:247.812:268.46:100.86:390.16:284:33Waxing Crescent6Fri
7Sat1:007.61:008.36:450.97:150.26:294:32Waxing Crescent7Sat
8Sun1:377.51:378.27:231.07:550.36:314:30Waxing Crescent8Sun
9Mon2:177.32:198.18:051.28:400.46:324:29Waxing Crescent9Mon
10Tue3:027.33:088.08:531.29:290.46:334:28First Quarter10Tue
11Wed3:547.34:028.09:461.210:230.46:344:27First Quarter11Wed
12Thu4:497.45:018.010:441.111:190.36:364:26First Quarter12Thu
13Fri5:467.76:048.111:450.86:374:25First Quarter13Fri
14Sat6:458.17:088.312:180.212:490.46:384:24Waxing Gibbous14Sat
15Sun7:438.78:108.61:17-0.11:51-0.26:404:23Waxing Gibbous15Sun
16Mon8:379.29:078.92:14-0.42:48-0.86:414:22Waxing Gibbous16Mon
17Tue9:299.710:029.23:08-0.73:43-1.36:424:21Full Moon17Tue
18Wed10:2010.110:569.33:59-0.94:36-1.66:434:21Full Moon18Wed
19Thu11:1110.211:509.24:51-0.95:29-1.76:454:20Full Moon19Thu
20Fri12:0310.25:42-0.86:21-1.76:464:19Waning Gibbous20Fri
21Sat12:439.012:549.96:34-0.57:13-1.46:474:18Waning Gibbous21Sat
22Sun1:368.71:479.57:27-0.28:07-0.96:484:18Waning Gibbous22Sun
23Mon2:328.42:449.08:230.39:04-0.56:504:17Waning Gibbous23Mon
24Tue3:308.03:438.49:220.710:030.06:514:16Third Quarter24Tue
25Wed4:307.84:458.010:251.011:020.46:524:16Third Quarter25Wed
26Thu5:297.65:467.711:281.16:534:15Third Quarter26Thu
27Fri6:267.66:467.512:000.612:311.16:544:15Third Quarter27Fri
28Sat7:217.77:447.412:570.81:311.06:554:14Waning Crescent28Sat
29Sun8:107.98:357.41:500.92:240.86:574:14Waning Crescent29Sun
30Mon8:558.19:227.52:360.83:090.56:584:13Waning Crescent30Mon
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 3% 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 New Moon (3% 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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