Tides Today & Tomorrow in Bass River, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Bass River, MA.
Next low tide (tomorrow) : in 3h 20m at 1:53 am (0.3 ft)
Next high tide (tomorrow) : 8:09 am (2.5 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:24 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447504
Common Questions About Tides

Bass River, MA Tides - Sep 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:132.91:382.87:240.27:370.26:067:15Full Moon1Sun
2Mon1:512.92:142.87:590.18:150.26:077:13Full Moon2Mon
3Tue2:282.92:492.98:350.18:540.26:087:11Full Moon3Tue
4Wed3:062.93:242.99:110.29:330.16:097:10Waning Gibbous4Wed
5Thu3:442.84:002.99:490.210:140.16:107:08Waning Gibbous5Thu
6Fri4:242.74:392.910:280.210:570.26:117:06Waning Gibbous6Fri
7Sat5:072.75:212.911:100.311:450.26:127:04Waning Gibbous7Sat
8Sun5:542.66:092.911:570.36:137:03Third Quarter8Sun
9Mon6:482.57:042.912:380.212:510.46:147:01Third Quarter9Mon
10Tue7:462.58:042.91:350.21:500.46:156:59Third Quarter10Tue
11Wed8:482.69:073.02:360.22:510.36:166:58Waning Crescent11Wed
12Thu9:512.710:113.13:370.13:540.26:176:56Waning Crescent12Thu
13Fri10:522.811:133.24:370.04:560.16:186:54Waning Crescent13Fri
14Sat11:493.05:34-0.15:55-0.16:196:52New Moon14Sat
15Sun12:113.312:423.26:27-0.36:50-0.36:206:51New Moon15Sun
16Mon1:053.31:323.37:18-0.37:43-0.46:216:49New Moon16Mon
17Tue1:583.32:213.48:07-0.38:34-0.46:226:47New Moon17Tue
18Wed2:503.23:103.48:55-0.29:25-0.36:236:45Waxing Crescent18Wed
19Thu3:423.13:593.39:43-0.110:16-0.26:246:44Waxing Crescent19Thu
20Fri4:333.04:483.210:320.011:07-0.16:256:42Waxing Crescent20Fri
21Sat5:252.85:403.011:220.26:266:40First Quarter21Sat
22Sun6:212.66:352.912:010.112:160.46:276:39First Quarter22Sun
23Mon7:192.57:332.812:590.21:120.56:286:37First Quarter23Mon
24Tue8:192.48:322.71:580.42:110.66:296:35First Quarter24Tue
25Wed9:172.49:312.72:560.43:090.66:316:33Waxing Gibbous25Wed
26Thu10:132.510:272.73:520.44:060.66:326:32Waxing Gibbous26Thu
27Fri11:032.611:172.74:440.44:590.56:336:30Waxing Gibbous27Fri
28Sat11:472.75:290.35:450.46:346:28Waxing Gibbous28Sat
29Sun12:022.812:252.86:090.36:280.36:356:26Full Moon29Sun
30Mon12:422.81:022.96:470.27:080.26:366:25Full Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447504)

Common Questions About Bass River, MA Tides

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

Slack tide in Bass River, MA is approximately 5:01 am — 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 52% 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 (52% 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