Tides Today & Tomorrow in Bass River, MA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Bass River, MA.
Next low tide : in 2h 44m at 11:45 am (0.3 ft)
Next high tide : 6:03 pm (2.9 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 5:52 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

Bass River, MA Tides - May 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:103.23:492.89:36-0.29:460.25:377:37Waxing Crescent1Thu
2Fri3:553.24:382.710:24-0.110:340.25:367:38Waxing Crescent2Fri
3Sat4:453.15:312.611:16-0.111:280.35:357:40Waxing Crescent3Sat
4Sun5:403.06:302.612:120.05:337:41First Quarter4Sun
5Mon6:413.07:332.612:270.41:130.15:327:42First Quarter5Mon
6Tue7:472.98:372.71:320.42:150.15:317:43First Quarter6Tue
7Wed8:552.99:402.82:380.33:170.15:307:44Waxing Gibbous7Wed
8Thu10:022.910:392.93:430.34:160.15:287:45Waxing Gibbous8Thu
9Fri11:052.911:333.04:460.15:120.15:277:46Waxing Gibbous9Fri
10Sat12:022.95:440.06:040.15:267:47Waxing Gibbous10Sat
11Sun12:213.112:532.96:36-0.16:510.15:257:48Full Moon11Sun
12Mon1:063.21:412.97:25-0.27:360.15:247:49Full Moon12Mon
13Tue1:503.22:282.88:11-0.28:200.25:237:50Full Moon13Tue
14Wed2:323.13:132.88:55-0.19:030.35:227:51Waning Gibbous14Wed
15Thu3:153.13:572.79:390.09:460.45:217:52Waning Gibbous15Thu
16Fri3:583.04:422.610:230.110:310.55:207:53Waning Gibbous16Fri
17Sat4:432.95:272.511:080.211:170.65:197:54Waning Gibbous17Sat
18Sun5:302.86:162.411:560.35:187:55Third Quarter18Sun
19Mon6:202.77:072.412:070.612:460.45:177:56Third Quarter19Mon
20Tue7:142.67:592.41:010.71:370.45:167:57Third Quarter20Tue
21Wed8:082.68:492.51:550.72:270.55:157:58Third Quarter21Wed
22Thu9:022.59:382.62:500.63:160.55:157:59Third Quarter22Thu
23Fri9:562.510:242.73:430.54:040.45:148:00Waning Crescent23Fri
24Sat10:482.611:082.84:350.44:510.45:138:01Waning Crescent24Sat
25Sun11:362.611:502.95:240.35:360.35:128:02Waning Crescent25Sun
26Mon12:222.76:110.16:200.35:128:03New Moon26Mon
27Tue12:323.11:072.76:560.07:040.25:118:03New Moon27Tue
28Wed1:153.21:542.87:42-0.17:500.25:108:04New Moon28Wed
29Thu2:003.32:422.88:29-0.28:370.25:108:05New Moon29Thu
30Fri2:483.33:332.89:18-0.29:270.25:098:06Waxing Crescent30Fri
31Sat3:393.34:252.810:09-0.210:200.25:098:07Waxing Crescent31Sat
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 2:54 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 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 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 (36% 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