Tides Today & Tomorrow in Great Point, MA

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Great Point, MA.
Next low tide : 11:02 pm (0.3 ft)
Next high tide : in 3h 26m at 4:58 pm (3.2 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:52 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8448566
Common Questions About Tides

Great Point, MA Tides - May 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:283.66:01-0.56:20-0.35:387:36New Moon1Sun
2Mon12:463.81:213.56:53-0.67:10-0.35:367:37New Moon2Mon
3Tue1:363.82:143.47:44-0.67:59-0.15:357:38Waxing Crescent3Tue
4Wed2:263.73:073.38:35-0.58:490.05:347:39Waxing Crescent4Wed
5Thu3:173.64:003.29:27-0.39:410.25:337:40Waxing Crescent5Thu
6Fri4:093.44:563.010:21-0.110:360.45:317:41Waxing Crescent6Fri
7Sat5:053.25:542.911:180.111:340.55:307:42First Quarter7Sat
8Sun6:053.16:542.812:170.35:297:43First Quarter8Sun
9Mon7:062.97:532.812:340.61:150.45:287:44First Quarter9Mon
10Tue8:072.98:492.81:350.62:110.45:277:45First Quarter10Tue
11Wed9:062.99:402.92:340.63:040.45:267:46Waxing Gibbous11Wed
12Thu9:592.910:243.03:290.53:520.45:247:47Waxing Gibbous12Thu
13Fri10:472.911:043.14:180.44:340.45:237:49Waxing Gibbous13Fri
14Sat11:292.911:413.25:010.35:130.45:227:50Waxing Gibbous14Sat
15Sun12:093.05:410.25:510.45:217:51Full Moon15Sun
16Mon12:173.212:483.06:200.16:290.45:207:52Full Moon16Mon
17Tue12:533.31:273.06:590.17:070.45:197:53Full Moon17Tue
18Wed1:303.32:072.97:390.07:470.45:187:53Full Moon18Wed
19Thu2:093.32:482.98:200.08:280.45:187:54Waning Gibbous19Thu
20Fri2:503.33:312.99:020.09:120.45:177:55Waning Gibbous20Fri
21Sat3:343.34:172.99:480.110:000.55:167:56Waning Gibbous21Sat
22Sun4:223.35:072.910:380.110:530.55:157:57Third Quarter22Sun
23Mon5:153.26:022.911:320.111:510.45:147:58Third Quarter23Mon
24Tue6:143.26:593.012:280.15:147:59Third Quarter24Tue
25Wed7:163.27:573.112:520.41:250.15:138:00Third Quarter25Wed
26Thu8:183.28:543.31:540.22:220.05:128:01Waning Crescent26Thu
27Fri9:203.39:503.52:550.13:190.05:118:02Waning Crescent27Fri
28Sat10:213.310:433.63:54-0.14:14-0.15:118:03Waning Crescent28Sat
29Sun11:173.411:343.74:51-0.35:06-0.15:108:03New Moon29Sun
30Mon12:113.45:44-0.45:57-0.15:108:04New Moon30Mon
31Tue12:243.81:053.36:36-0.46:470.05:098:05New Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8448566)

Common Questions About Great Point, MA Tides

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

Slack tide in Great Point, MA is approximately 8:00 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 Great Point, MA?

Great Point, MA is currently in a transitional phase. Tonight's moon is 36% 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 shifting between spring and neap.

What datum are Great Point, 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 Point, MA?

Tide predictions for Great Point, 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 Point, MA?

Tide data for Great Point, MA is sourced from NOAA Station #8448566. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8448566.

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

Tonight the moon over Great Point, MA is First Quarter (36% illuminated). This places Great Point, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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