Tides Today & Tomorrow in Penikese Island, MA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Penikese Island, MA.
Next low tide : in 21m at 6:34 pm (0.8 ft)
Next high tide (tomorrow) : 1:09 am (3.0 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8448248
Common Questions About Tides

Penikese Island, MA Tides - Sep 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:454.511:084.04:02-0.14:260.06:107:16Waxing Crescent1Fri
2Sat11:354.211:573.74:360.15:140.36:117:14Waxing Crescent2Sat
3Sun12:254.05:110.36:060.66:127:13Waxing Crescent3Sun
4Mon12:473.31:173.75:500.57:120.86:137:11First Quarter4Mon
5Tue1:383.02:103.56:370.78:340.96:147:09First Quarter5Tue
6Wed2:322.83:073.37:370.99:421.06:157:08First Quarter6Wed
7Thu3:282.84:073.28:511.010:320.96:167:06First Quarter7Thu
8Fri4:262.85:063.29:590.911:150.86:177:04Waxing Gibbous8Fri
9Sat5:212.95:563.310:550.711:550.76:187:03Waxing Gibbous9Sat
10Sun6:093.16:393.511:440.66:197:01Waxing Gibbous10Sun
11Mon6:523.37:173.612:330.512:290.46:206:59Waxing Gibbous11Mon
12Tue7:313.57:533.81:100.31:120.36:216:58Full Moon12Tue
13Wed8:093.78:293.81:450.21:520.26:226:56Full Moon13Wed
14Thu8:473.89:063.92:170.12:310.26:236:54Full Moon14Thu
15Fri9:263.99:463.92:480.13:090.26:246:52Full Moon15Fri
16Sat10:073.910:303.83:180.13:470.26:256:51Waning Gibbous16Sat
17Sun10:514.011:183.63:500.14:270.36:266:49Waning Gibbous17Sun
18Mon11:403.94:260.15:150.56:276:47Waning Gibbous18Mon
19Tue12:103.512:343.95:090.26:170.66:286:45Third Quarter19Tue
20Wed1:053.41:323.86:000.48:140.76:296:44Third Quarter20Wed
21Thu2:053.32:353.87:070.59:440.66:306:42Third Quarter21Thu
22Fri3:093.33:423.98:350.510:450.46:316:40Third Quarter22Fri
23Sat4:143.54:494.010:040.411:360.26:326:39Waning Crescent23Sat
24Sun5:173.85:504.211:120.16:336:37Waning Crescent24Sun
25Mon6:144.16:444.412:210.012:090.06:346:35Waning Crescent25Mon
26Tue7:074.47:344.51:02-0.11:01-0.26:356:33New Moon26Tue
27Wed7:574.68:224.51:39-0.21:49-0.26:366:32New Moon27Wed
28Thu8:444.79:084.32:13-0.22:34-0.26:376:30New Moon28Thu
29Fri9:314.69:534.12:45-0.23:16-0.16:386:28Waxing Crescent29Fri
30Sat10:184.410:393.83:17-0.13:580.16:396:27Waxing Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8448248)

Common Questions About Penikese Island, MA Tides

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What time does the tide turn (slack tide) in Penikese Island, MA today?

Slack tide in Penikese Island, MA is approximately 9:51 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 Penikese Island, MA?

Penikese Island, MA is currently in a transitional phase. Tonight's moon is 36% 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 shifting between spring and neap.

What datum are Penikese Island, MA 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 Penikese Island, MA?

Tide predictions for Penikese Island, MA 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 Penikese Island, MA?

Tide data for Penikese Island, MA is sourced from NOAA Station #8448248. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8448248.

What is the moon phase in Penikese Island, MA tonight?

Tonight the moon over Penikese Island, MA is First Quarter (36% illuminated). This places Penikese Island, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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