Tides Today & Tomorrow in Great Hill, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Great Hill, MA.
Next low tide (tomorrow) : 7:55 am (0.9 ft)
Next high tide (tomorrow) : in 3h 52m at 2:54 am (3.3 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447368
Common Questions About Tides

Great Hill, MA Tides - Feb 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:083.22:432.99:040.68:200.36:544:58First Quarter1Mon
2Tue3:123.33:483.110:070.49:250.16:534:59Waxing Gibbous2Tue
3Wed4:223.64:533.411:000.110:24-0.26:525:00Waxing Gibbous3Wed
4Thu5:254.05:513.911:47-0.211:20-0.56:515:02Waxing Gibbous4Thu
5Fri6:194.56:424.412:31-0.56:505:03Full Moon5Fri
6Sat7:084.97:324.812:13-0.71:12-0.76:495:04Full Moon6Sat
7Sun7:575.18:225.11:05-0.91:52-0.86:485:06Full Moon7Sun
8Mon8:465.19:125.31:57-0.92:31-0.96:465:07Waning Gibbous8Mon
9Tue9:374.910:035.22:47-0.83:08-0.86:455:08Waning Gibbous9Tue
10Wed10:284.710:565.03:35-0.63:46-0.66:445:09Waning Gibbous10Wed
11Thu11:214.311:504.74:23-0.34:26-0.26:435:11Waning Gibbous11Thu
12Fri12:154.05:180.25:110.16:415:12Third Quarter12Fri
13Sat12:474.41:123.68:370.46:070.46:405:13Third Quarter13Sat
14Sun1:464.02:123.49:440.49:540.76:395:14Third Quarter14Sun
15Mon2:513.73:173.210:440.410:560.66:375:16Waning Crescent15Mon
16Tue4:013.74:253.311:380.411:470.66:365:17Waning Crescent16Tue
17Wed5:063.75:243.412:260.36:355:18Waning Crescent17Wed
18Thu5:593.96:143.712:230.51:050.36:335:19Waning Crescent18Thu
19Fri6:434.06:583.91:050.36:325:21New Moon19Fri
20Sat7:224.17:384.012:090.112:460.16:305:22New Moon20Sat
21Sun7:594.18:154.112:50-0.11:15-0.16:295:23New Moon21Sun
22Mon8:344.08:514.01:32-0.21:49-0.26:275:24New Moon22Mon
23Tue9:083.99:263.92:13-0.32:23-0.36:265:26Waxing Crescent23Tue
24Wed9:433.79:593.82:53-0.22:57-0.26:245:27Waxing Crescent24Wed
25Thu10:183.510:343.63:31-0.13:29-0.16:235:28Waxing Crescent25Thu
26Fri10:563.311:113.54:080.14:010.06:215:29Waxing Crescent26Fri
27Sat11:383.211:543.44:450.34:360.16:205:30First Quarter27Sat
28Sun12:253.15:290.55:190.36:185:32First Quarter28Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447368)

Common Questions About Great Hill, MA Tides

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What time does the tide turn (slack tide) in Great Hill, MA today?

Slack tide in Great Hill, MA is approximately 5:24 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 Great Hill, MA?

Great Hill, 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 Great Hill, 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 Great Hill, MA?

Tide predictions for Great Hill, 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 Great Hill, MA?

Tide data for Great Hill, MA is sourced from NOAA Station #8447368. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447368.

What is the moon phase in Great Hill, MA tonight?

Tonight the moon over Great Hill, MA is First Quarter (52% illuminated). This places Great Hill, 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