Tides Today & Tomorrow in Bass River, MA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Bass River, MA.
Next low tide (tomorrow) : 12:20 am (0.2 ft)
Next high tide : in 3h 07m at 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 - Nov 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:192.912:323.16:180.16:48-0.16:124:36New Moon1Fri
2Sat1:042.91:123.16:590.17:31-0.16:134:35New Moon2Sat
3Sun1:472.81:523.07:400.28:130.06:144:33Waxing Crescent3Sun
4Mon2:302.72:333.08:210.38:560.16:164:32Waxing Crescent4Mon
5Tue3:132.63:142.99:030.49:390.26:174:31Waxing Crescent5Tue
6Wed3:572.53:592.89:470.510:250.36:184:30Waxing Crescent6Wed
7Thu4:442.44:472.710:340.611:140.46:194:29First Quarter7Thu
8Fri5:352.45:392.611:260.76:214:28First Quarter8Fri
9Sat6:292.36:352.612:070.412:210.76:224:26First Quarter9Sat
10Sun7:222.47:302.612:590.51:160.76:234:25First Quarter10Sun
11Mon8:132.48:252.61:510.42:110.66:244:24Waxing Gibbous11Mon
12Tue9:022.69:172.62:400.43:040.56:254:23Waxing Gibbous12Tue
13Wed9:472.710:072.73:280.33:550.36:274:22Waxing Gibbous13Wed
14Thu10:302.910:542.84:140.24:430.16:284:22Waxing Gibbous14Thu
15Fri11:113.111:402.94:580.15:29-0.16:294:21Full Moon15Fri
16Sat11:533.25:420.16:15-0.26:304:20Full Moon16Sat
17Sun12:252.912:363.36:260.07:02-0.36:324:19Full Moon17Sun
18Mon1:132.91:223.47:120.07:50-0.46:334:18Waning Gibbous18Mon
19Tue2:022.92:113.48:000.08:41-0.46:344:17Waning Gibbous19Tue
20Wed2:552.93:043.38:510.19:34-0.36:354:17Waning Gibbous20Wed
21Thu3:492.83:593.29:450.110:30-0.26:364:16Waning Gibbous21Thu
22Fri4:482.75:003.110:440.211:29-0.16:374:15Third Quarter22Fri
23Sat5:512.76:062.911:480.36:394:15Third Quarter23Sat
24Sun6:562.77:132.812:310.012:550.36:404:14Third Quarter24Sun
25Mon8:002.78:212.81:330.12:010.36:414:14Waning Crescent25Mon
26Tue9:002.89:252.72:330.13:060.26:424:13Waning Crescent26Tue
27Wed9:552.910:252.73:300.24:060.16:434:13Waning Crescent27Wed
28Thu10:453.011:162.74:230.25:000.06:444:12Waning Crescent28Thu
29Fri11:283.05:100.25:470.06:454:12New Moon29Fri
30Sat12:032.712:093.05:540.26:300.06:464:11New Moon30Sat
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 9:11 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