Tides Today & Tomorrow in Bass River, MA

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in Bass River, MA.
Next low tide : in 22m at 2:20 pm (0.7 ft)
Next high tide : 8:41 pm (2.6 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 5:55 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

Bass River, MA Tides - Jan 1923

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:262.95:100.35:480.07:074:20Full Moon1Mon
2Tue12:002.612:083.05:540.26:30-0.17:074:21Full Moon2Tue
3Wed12:432.712:503.16:380.17:13-0.27:084:22Full Moon3Wed
4Thu1:262.81:343.27:220.07:57-0.37:084:23Full Moon4Thu
5Fri2:102.82:193.28:080.08:42-0.37:084:24Waning Gibbous5Fri
6Sat2:562.93:073.28:56-0.19:28-0.37:074:24Waning Gibbous6Sat
7Sun3:432.93:573.19:46-0.110:17-0.37:074:25Waning Gibbous7Sun
8Mon4:332.94:503.010:40-0.111:09-0.27:074:26Third Quarter8Mon
9Tue5:263.05:482.911:370.07:074:27Third Quarter9Tue
10Wed6:233.06:502.812:05-0.112:380.07:074:28Third Quarter10Wed
11Thu7:223.07:542.71:020.01:400.07:074:30Third Quarter11Thu
12Fri8:233.09:002.72:020.02:440.07:064:31Waning Crescent12Fri
13Sat9:253.010:052.73:020.13:47-0.17:064:32Waning Crescent13Sat
14Sun10:243.111:042.74:010.14:46-0.27:064:33Waning Crescent14Sun
15Mon11:183.111:572.84:570.05:39-0.27:054:34New Moon15Mon
16Tue12:083.15:490.06:29-0.37:054:35New Moon16Tue
17Wed12:462.812:553.16:380.07:15-0.37:044:36New Moon17Wed
18Thu1:322.81:403.17:240.07:58-0.27:044:37New Moon18Thu
19Fri2:162.82:243.08:090.08:40-0.17:034:39Waxing Crescent19Fri
20Sat2:582.73:072.98:530.19:21-0.17:034:40Waxing Crescent20Sat
21Sun3:392.73:502.89:370.210:030.17:024:41Waxing Crescent21Sun
22Mon4:202.74:342.710:230.210:460.27:014:42Waxing Crescent22Mon
23Tue5:042.65:212.611:100.311:320.37:014:43First Quarter23Tue
24Wed5:502.66:122.412:010.47:004:45First Quarter24Wed
25Thu6:392.67:052.412:200.412:540.46:594:46First Quarter25Thu
26Fri7:302.68:002.31:100.41:480.46:594:47First Quarter26Fri
27Sat8:222.68:572.32:020.42:430.46:584:48Waxing Gibbous27Sat
28Sun9:152.79:522.42:540.43:370.36:574:50Waxing Gibbous28Sun
29Mon10:062.810:432.53:470.44:290.16:564:51Waxing Gibbous29Mon
30Tue10:542.911:302.64:370.25:170.06:554:52Waxing Gibbous30Tue
31Wed11:403.15:260.16:02-0.26:544:53Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About Bass River, MA Tides

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What time does the tide turn (slack tide) in Bass River, MA today?

Slack tide in Bass River, MA is approximately 5:30 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 Bass River, MA?

Bass River, MA is currently in a transitional phase. Tonight's moon is 65% 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 Bass River, 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 Bass River, MA?

Tide predictions for Bass River, 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 Bass River, MA?

Tide data for Bass River, MA is sourced from NOAA Station #8447504. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447504.

What is the moon phase in Bass River, MA tonight?

Tonight the moon over Bass River, MA is First Quarter (65% illuminated). This places Bass River, 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