Tides Today & Tomorrow in South Bristol, Walpole, ME

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in South Bristol, Walpole, ME.
Next low tide : in 4h 40m at 10:30 am (0.3 ft)
Next high tide : 4:48 pm (9.5 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:14 am
Moon phase : First Quarter (42% illuminated)
Tide Station Location : Station #8416721
Common Questions About Tides

South Bristol, Walpole, ME Tides - Feb 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:069.310:438.23:561.14:360.16:554:47Full Moon1Mon
2Tue10:479.411:218.44:361.05:140.06:544:49Full Moon2Tue
3Wed11:249.411:558.55:140.95:470.06:534:50Full Moon3Wed
4Thu11:599.45:490.86:180.16:524:51Full Moon4Thu
5Fri12:278.612:329.26:240.76:480.26:514:53Waning Gibbous5Fri
6Sat12:598.71:069.06:590.77:200.36:494:54Waning Gibbous6Sat
7Sun1:308.71:428.77:360.87:540.56:484:56Waning Gibbous7Sun
8Mon2:048.72:228.38:160.88:310.86:474:57Waning Gibbous8Mon
9Tue2:428.73:078.09:010.89:131.16:464:58Third Quarter9Tue
10Wed3:258.73:587.79:510.910:011.36:445:00Third Quarter10Wed
11Thu4:158.84:567.510:470.910:561.46:435:01Third Quarter11Thu
12Fri5:138.96:027.411:500.811:581.46:425:02Third Quarter12Fri
13Sat6:179.17:117.712:580.56:405:04Waning Crescent13Sat
14Sun7:249.58:158.11:051.12:030.06:395:05Waning Crescent14Sun
15Mon8:2710.19:128.72:100.63:01-0.66:375:07Waning Crescent15Mon
16Tue9:2510.710:059.43:090.03:54-1.26:365:08New Moon16Tue
17Wed10:1911.110:5610.04:04-0.64:45-1.66:345:09New Moon17Wed
18Thu11:1211.211:4510.44:58-1.15:34-1.86:335:11New Moon18Thu
19Fri12:0411.15:51-1.46:21-1.76:315:12Waxing Crescent19Fri
20Sat12:3310.612:5510.76:43-1.47:08-1.36:305:13Waxing Crescent20Sat
21Sun1:2110.61:4710.17:36-1.27:56-0.86:285:15Waxing Crescent21Sun
22Mon2:1010.32:429.48:30-0.88:47-0.16:275:16First Quarter22Mon
23Tue3:039.93:418.79:28-0.39:420.66:255:17First Quarter23Tue
24Wed3:599.44:448.110:300.210:421.26:235:19First Quarter24Wed
25Thu5:009.05:517.711:370.611:471.76:225:20First Quarter25Thu
26Fri6:068.66:587.512:460.96:205:21Waxing Gibbous26Fri
27Sat7:118.67:597.612:551.81:500.86:195:23Waxing Gibbous27Sat
28Sun8:108.78:527.81:581.72:450.76:175:24Waxing Gibbous28Sun
29Mon9:018.99:368.12:501.43:300.56:155:25Waxing Gibbous29Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8416721)

Common Questions About South Bristol, Walpole, ME Tides

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What time does the tide turn (slack tide) in South Bristol, Walpole, ME today?

Slack tide in South Bristol, Walpole, ME is approximately 1:39 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 South Bristol, Walpole, ME?

South Bristol, Walpole, ME 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 South Bristol, Walpole, ME 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 South Bristol, Walpole, ME?

Tide predictions for South Bristol, Walpole, ME 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 South Bristol, Walpole, ME?

Tide data for South Bristol, Walpole, ME is sourced from NOAA Station #8416721. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8416721.

What is the moon phase in South Bristol, Walpole, ME tonight?

Tonight the moon over South Bristol, Walpole, ME is First Quarter (42% illuminated). This places South Bristol, Walpole, ME 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