Tides Today & Tomorrow in Great Hill, MA

TIDE TIMES for Monday, July 20, 2026
The tide is currently rising in Great Hill, MA.
Next low tide (tomorrow) : 7:02 am (0.8 ft)
Next high tide (tomorrow) : in 4h 33m at 2:03 am (3.7 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:25 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8447368
Common Questions About Tides

Great Hill, MA Tides - Sep 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:254.87:535.51:160.012:56-0.16:097:16Full Moon1Sun
2Mon8:185.28:435.61:59-0.21:52-0.26:107:14Full Moon2Mon
3Tue9:095.49:335.52:38-0.22:46-0.26:117:12Full Moon3Tue
4Wed9:595.510:225.33:14-0.23:38-0.16:127:11Waning Gibbous4Wed
5Thu10:505.411:124.93:48-0.14:260.16:137:09Waning Gibbous5Thu
6Fri11:405.14:220.15:120.46:147:07Waning Gibbous6Fri
7Sat12:034.512:324.84:580.36:000.76:157:06Waning Gibbous7Sat
8Sun12:544.11:254.45:380.69:110.96:167:04Third Quarter8Sun
9Mon1:463.82:194.16:240.910:111.06:177:02Third Quarter9Mon
10Tue2:403.53:183.87:211.111:041.06:187:00Third Quarter10Tue
11Wed3:363.34:233.78:311.111:481.06:196:59Third Quarter11Wed
12Thu4:383.25:303.79:401.16:206:57Waning Crescent12Thu
13Fri5:393.36:253.812:211.010:40 AM0.96:216:55Waning Crescent13Fri
14Sat6:313.67:084.012:340.911:33 AM0.76:226:53Waning Crescent14Sat
15Sun7:153.87:434.112:500.712:220.56:236:52Waning Crescent15Sun
16Mon7:544.18:154.21:190.51:090.36:246:50New Moon16Mon
17Tue8:304.28:464.21:510.31:530.26:256:48New Moon17Tue
18Wed9:054.49:194.22:240.12:360.26:266:47New Moon18Wed
19Thu9:414.59:564.22:560.13:160.26:276:45New Moon19Thu
20Fri10:184.510:364.13:260.13:540.26:286:43Waxing Crescent20Fri
21Sat10:594.411:203.93:560.14:310.36:296:41Waxing Crescent21Sat
22Sun11:444.44:270.25:090.56:306:40Waxing Crescent22Sun
23Mon12:083.812:324.35:030.35:540.76:316:38First Quarter23Mon
24Tue1:003.71:264.35:480.57:000.96:326:36First Quarter24Tue
25Wed1:563.72:244.36:460.69:190.96:336:34First Quarter25Wed
26Thu2:563.73:284.38:090.710:470.76:346:33First Quarter26Thu
27Fri4:013.84:364.59:410.611:400.56:366:31Waxing Gibbous27Fri
28Sat5:094.15:434.710:570.46:376:29Waxing Gibbous28Sat
29Sun6:134.56:425.012:230.212:010.26:386:27Waxing Gibbous29Sun
30Mon7:095.07:355.212:580.012:580.06:396:26Full Moon30Mon
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 4:32 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 42% 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 (42% 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