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 3h 24m 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 - May 1925

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:442.68:282.41:310.62:070.45:377:38First Quarter1Fri
2Sat8:402.69:202.52:260.62:590.45:367:39First Quarter2Sat
3Sun9:352.610:112.63:200.63:510.45:347:40Waxing Gibbous3Sun
4Mon10:282.710:592.74:140.44:410.35:337:41Waxing Gibbous4Mon
5Tue11:192.811:432.95:050.35:280.25:327:42Waxing Gibbous5Tue
6Wed12:062.95:540.16:130.15:317:43Waxing Gibbous6Wed
7Thu12:253.012:522.96:40-0.16:570.05:297:44Full Moon7Thu
8Fri1:073.21:383.07:26-0.27:41-0.15:287:45Full Moon8Fri
9Sat1:513.32:253.08:13-0.38:27-0.15:277:46Full Moon9Sat
10Sun2:373.43:143.09:01-0.49:15-0.15:267:47Waning Gibbous10Sun
11Mon3:263.44:053.09:51-0.410:060.05:257:48Waning Gibbous11Mon
12Tue4:173.44:592.910:43-0.310:590.05:247:49Waning Gibbous12Tue
13Wed5:113.35:572.911:38-0.211:570.15:237:50Third Quarter13Wed
14Thu6:103.16:582.812:37-0.15:227:51Third Quarter14Thu
15Fri7:143.08:022.812:590.21:380.05:217:52Third Quarter15Fri
16Sat8:202.99:052.82:030.32:390.05:207:53Third Quarter16Sat
17Sun9:262.910:072.93:080.23:400.15:197:54Waning Crescent17Sun
18Mon10:312.811:043.04:120.24:380.15:187:55Waning Crescent18Mon
19Tue11:312.811:553.05:120.15:320.15:177:56Waning Crescent19Tue
20Wed12:232.96:060.06:200.15:167:57Waning Crescent20Wed
21Thu12:403.11:102.86:540.07:050.25:157:58New Moon21Thu
22Fri1:213.11:542.87:38-0.17:470.25:147:59New Moon22Fri
23Sat2:013.12:362.88:200.08:280.35:148:00New Moon23Sat
24Sun2:413.03:182.79:010.09:080.35:138:01New Moon24Sun
25Mon3:203.03:592.79:410.09:490.45:128:02Waxing Crescent25Mon
26Tue4:012.94:402.610:230.110:320.55:118:03Waxing Crescent26Tue
27Wed4:432.95:232.611:050.211:160.55:118:04Waxing Crescent27Wed
28Thu5:272.86:092.511:500.35:108:04Waxing Crescent28Thu
29Fri6:152.76:572.512:040.612:370.35:108:05First Quarter29Fri
30Sat7:052.77:462.512:550.61:260.35:098:06First Quarter30Sat
31Sun7:572.68:352.61:470.62:150.45:098:07First Quarter31Sun
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