Tides Today & Tomorrow in South Bristol, Walpole, ME

TIDE TIMES for Monday, July 20, 2026
The tide is currently rising in South Bristol, Walpole, ME.
Next low tide : 11:05 pm (0.7 ft)
Next high tide : in 3h 22m at 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 - Aug 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:258.411:289.95:160.35:141.15:278:01New Moon1Sat
2Sun12:048.75:540.05:550.75:288:00New Moon2Sun
3Mon12:0810.112:429.16:31-0.36:370.45:307:58New Moon3Mon
4Tue12:4810.21:209.57:08-0.47:210.25:317:57Waxing Crescent4Tue
5Wed1:3010.11:599.87:47-0.58:060.05:327:56Waxing Crescent5Wed
6Thu2:1410.02:4110.08:29-0.48:54-0.15:337:54Waxing Crescent6Thu
7Fri3:019.73:2710.19:14-0.39:46-0.15:347:53First Quarter7Fri
8Sat3:549.34:1910.110:030.010:430.05:357:52First Quarter8Sat
9Sun4:528.95:1510.110:580.411:440.15:367:50First Quarter9Sun
10Mon5:558.66:1710.011:560.75:377:49First Quarter10Mon
11Tue7:038.47:2310.012:510.21:010.95:387:47Waxing Gibbous11Tue
12Wed8:138.48:3010.12:010.22:090.95:407:46Waxing Gibbous12Wed
13Thu9:188.69:3310.33:07-0.13:150.75:417:44Waxing Gibbous13Thu
14Fri10:168.910:2910.44:06-0.34:130.45:427:43Full Moon14Fri
15Sat11:089.211:2110.54:58-0.55:070.25:437:41Full Moon15Sat
16Sun11:579.55:47-0.65:580.15:447:40Full Moon16Sun
17Mon12:1010.412:429.66:31-0.56:450.05:457:38Full Moon17Mon
18Tue12:5610.21:239.67:13-0.37:300.15:467:37Waning Gibbous18Tue
19Wed1:399.82:039.67:520.08:140.35:477:35Waning Gibbous19Wed
20Thu2:229.32:439.48:310.48:580.65:497:33Waning Gibbous20Thu
21Fri3:068.83:249.29:110.99:440.95:507:32Waning Gibbous21Fri
22Sat3:538.34:098.99:541.310:331.25:517:30Third Quarter22Sat
23Sun4:437.94:588.710:401.711:261.45:527:28Third Quarter23Sun
24Mon5:377.65:518.511:302.05:537:27Third Quarter24Mon
25Tue6:357.46:478.512:231.612:252.25:547:25Third Quarter25Tue
26Wed7:357.37:468.61:241.61:242.15:557:23Waning Crescent26Wed
27Thu8:327.58:418.92:231.42:221.95:577:22Waning Crescent27Thu
28Fri9:227.99:309.33:141.03:141.65:587:20Waning Crescent28Fri
29Sat10:068.310:149.63:580.64:001.15:597:18Waning Crescent29Sat
30Sun10:478.810:5710.04:380.24:440.66:007:16New Moon30Sun
31Mon11:279.311:4010.25:17-0.25:280.16:017:15New Moon31Mon
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 7:56 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