Tides Today & Tomorrow in Bass River, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Bass River, MA.
Next low tide (tomorrow) : 2:12 am (0.4 ft)
Next high tide : in 4h 37m at 7:46 pm (2.7 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 5:54 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

Bass River, MA Tides - Jul 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:052.79:302.92:560.33:150.35:098:19Waxing Gibbous1Wed
2Thu10:012.710:233.13:520.24:080.25:108:18Waxing Gibbous2Thu
3Fri10:582.811:163.24:480.05:020.15:108:18Waxing Gibbous3Fri
4Sat11:542.85:43-0.15:560.05:118:18Full Moon4Sat
5Sun12:093.412:482.96:37-0.36:50-0.15:118:18Full Moon5Sun
6Mon1:023.51:433.07:30-0.47:43-0.15:128:18Full Moon6Mon
7Tue1:563.52:383.18:23-0.58:37-0.15:138:17Full Moon7Tue
8Wed2:513.53:343.19:16-0.59:32-0.15:138:17Waning Gibbous8Wed
9Thu3:473.54:293.110:09-0.410:27-0.15:148:16Waning Gibbous9Thu
10Fri4:433.35:243.111:02-0.311:240.05:158:16Waning Gibbous10Fri
11Sat5:413.26:203.011:57-0.25:158:16Third Quarter11Sat
12Sun6:403.07:183.012:230.112:530.05:168:15Third Quarter12Sun
13Mon7:412.98:152.91:250.11:490.15:178:15Third Quarter13Mon
14Tue8:432.79:122.92:260.22:450.25:188:14Third Quarter14Tue
15Wed9:442.610:082.93:270.23:410.35:188:14Waning Crescent15Wed
16Thu10:442.611:012.94:270.24:350.45:198:13Waning Crescent16Thu
17Fri11:392.611:492.95:230.25:270.45:208:12Waning Crescent17Fri
18Sat12:272.66:120.26:130.45:218:12Waning Crescent18Sat
19Sun12:332.91:102.66:550.16:560.45:228:11New Moon19Sun
20Mon1:142.91:512.67:350.17:380.45:238:10New Moon20Mon
21Tue1:542.92:302.68:140.18:180.45:248:09New Moon21Tue
22Wed2:332.93:092.78:520.18:590.45:248:09New Moon22Wed
23Thu3:122.93:462.79:300.19:390.45:258:08Waxing Crescent23Thu
24Fri3:512.94:242.710:080.110:200.45:268:07Waxing Crescent24Fri
25Sat4:312.95:022.710:470.111:020.45:278:06Waxing Crescent25Sat
26Sun5:122.85:432.711:270.211:480.35:288:05Waxing Crescent26Sun
27Mon5:562.86:262.812:110.25:298:04First Quarter27Mon
28Tue6:452.77:122.812:370.312:580.25:308:03First Quarter28Tue
29Wed7:372.78:022.91:290.31:480.35:318:02First Quarter29Wed
30Thu8:332.68:563.02:240.22:410.25:328:01Waxing Gibbous30Thu
31Fri9:312.79:523.13:220.13:380.25:338:00Waxing Gibbous31Fri
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 10:59 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 neap phase. Tonight's moon is 55% 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 minimum.

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 (55% illuminated). This places Bass River, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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