Tides Today & Tomorrow in Westport Harbor, MA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Westport Harbor, MA.
Next low tide (tomorrow) : 3:12 am (-0.1 ft)
Next high tide : in 2h 33m at 8:35 pm (4.0 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:50 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8447975
Common Questions About Tides

Westport Harbor, MA Tides - May 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:412.42:132.37:520.77:440.75:407:41First Quarter1Thu
2Fri2:282.33:032.49:130.79:060.85:397:42First Quarter2Fri
3Sat3:162.33:552.410:100.610:220.75:387:44First Quarter3Sat
4Sun4:092.34:482.610:510.511:190.55:377:45Waxing Gibbous4Sun
5Mon5:032.35:372.811:270.35:357:46Waxing Gibbous5Mon
6Tue5:542.56:213.112:050.312:020.25:347:47Waxing Gibbous6Tue
7Wed6:402.67:033.312:480.112:370.05:337:48Waxing Gibbous7Wed
8Thu7:242.87:453.51:300.01:14-0.15:327:49Full Moon8Thu
9Fri8:092.98:283.72:13-0.11:54-0.25:317:50Full Moon9Fri
10Sat8:553.09:143.72:57-0.22:38-0.25:297:51Full Moon10Sat
11Sun9:433.010:033.73:42-0.23:24-0.25:287:52Waning Gibbous11Sun
12Mon10:333.010:553.64:28-0.14:12-0.15:277:53Waning Gibbous12Mon
13Tue11:283.011:523.55:140.05:020.05:267:54Waning Gibbous13Tue
14Wed12:263.06:050.15:570.25:257:55Waning Gibbous14Wed
15Thu12:513.41:253.07:070.27:040.45:247:56Third Quarter15Thu
16Fri1:503.22:243.18:300.38:460.55:237:57Third Quarter16Fri
17Sat2:493.13:243.29:430.310:300.45:227:58Third Quarter17Sat
18Sun3:493.04:263.410:340.211:350.35:217:59Waning Crescent18Sun
19Mon4:522.95:263.511:140.25:218:00Waning Crescent19Mon
20Tue5:522.96:223.612:270.211:50 AM0.15:208:01Waning Crescent20Tue
21Wed6:453.07:113.71:120.212:260.15:198:02Waning Crescent21Wed
22Thu7:343.07:583.71:540.11:040.15:188:03New Moon22Thu
23Fri8:213.08:423.62:330.11:450.15:178:04New Moon23Fri
24Sat9:053.09:253.53:110.12:280.15:178:05New Moon24Sat
25Sun9:492.910:073.33:470.23:130.25:168:05New Moon25Sun
26Mon10:332.810:493.14:230.33:580.35:158:06Waxing Crescent26Mon
27Tue11:182.711:322.94:590.34:420.45:158:07Waxing Crescent27Tue
28Wed12:042.65:360.45:260.55:148:08Waxing Crescent28Wed
29Thu12:152.712:502.56:170.56:140.65:148:09Waxing Crescent29Thu
30Fri12:582.51:352.57:030.67:100.75:138:10First Quarter30Fri
31Sat1:402.42:192.57:550.68:190.85:138:10First Quarter31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447975)

Common Questions About Westport Harbor, MA Tides

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What time does the tide turn (slack tide) in Westport Harbor, MA today?

Slack tide in Westport Harbor, MA is approximately 11:53 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 Westport Harbor, MA?

Westport Harbor, MA is currently in a spring phase. Tonight's moon is 0% 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 maximum.

What datum are Westport Harbor, 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 Westport Harbor, MA?

Tide predictions for Westport Harbor, 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 Westport Harbor, MA?

Tide data for Westport Harbor, MA is sourced from NOAA Station #8447975. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447975.

What is the moon phase in Westport Harbor, MA tonight?

Tonight the moon over Westport Harbor, MA is New Moon (0% illuminated). This places Westport Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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