Tides Today & Tomorrow in South Bristol, Walpole, ME

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in South Bristol, Walpole, ME.
Next low tide : in 2h 39m at 6:30 pm (1.1 ft)
Next high tide (tomorrow) : 12:41 am (9.7 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:24 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8416721
Common Questions About Tides

South Bristol, Walpole, ME Tides - Sep 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:069.25:2910.111:090.311:57-0.16:017:14First Quarter1Wed
2Thu6:138.96:359.912:140.66:037:12First Quarter2Thu
3Fri7:218.77:429.81:060.11:220.86:047:10Waxing Gibbous3Fri
4Sat8:268.88:469.82:140.12:290.76:057:08Waxing Gibbous4Sat
5Sun9:259.09:429.93:140.03:290.56:067:07Waxing Gibbous5Sun
6Mon10:169.210:3310.04:07-0.14:210.36:077:05Full Moon6Mon
7Tue11:039.411:1910.04:54-0.25:090.26:087:03Full Moon7Tue
8Wed11:459.55:36-0.15:520.16:097:01Full Moon8Wed
9Thu12:029.812:249.66:150.06:330.16:116:59Full Moon9Thu
10Fri12:429.61:009.56:510.27:110.26:126:57Waning Gibbous10Fri
11Sat1:209.41:369.47:260.47:480.46:136:56Waning Gibbous11Sat
12Sun1:589.12:119.38:010.78:270.66:146:54Waning Gibbous12Sun
13Mon2:368.72:499.18:381.09:070.86:156:52Waning Gibbous13Mon
14Tue3:188.43:308.99:181.39:521.06:166:50Waning Gibbous14Tue
15Wed4:048.14:168.710:021.510:411.26:176:48Third Quarter15Wed
16Thu4:547.95:078.610:511.711:331.36:186:46Third Quarter16Thu
17Fri5:487.76:028.611:441.86:206:45Third Quarter17Fri
18Sat6:447.86:598.812:291.312:401.76:216:43Waning Crescent18Sat
19Sun7:428.17:579.11:261.11:391.46:226:41Waning Crescent19Sun
20Mon8:358.58:529.62:220.72:370.96:236:39Waning Crescent20Mon
21Tue9:249.29:4310.03:130.23:290.36:246:37Waning Crescent21Tue
22Wed10:119.810:3210.44:00-0.34:19-0.46:256:35New Moon22Wed
23Thu10:5710.411:2110.74:46-0.85:09-1.06:266:33New Moon23Thu
24Fri11:4310.95:33-1.15:59-1.46:286:32New Moon24Fri
25Sat12:1110.912:3111.36:20-1.26:49-1.66:296:30Waxing Crescent25Sat
26Sun1:0210.81:2011.37:09-1.17:41-1.66:306:28Waxing Crescent26Sun
27Mon1:5410.52:1211.27:59-0.98:35-1.36:316:26Waxing Crescent27Mon
28Tue2:4910.13:0710.88:53-0.49:33-0.96:326:24Waxing Crescent28Tue
29Wed3:499.64:0810.49:520.010:36-0.56:336:22First Quarter29Wed
30Thu4:549.25:1310.010:550.511:42-0.16:356:21First Quarter30Thu
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 9:35 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 spring phase. Tonight's moon is 99% 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 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 Full Moon (99% illuminated). This places South Bristol, Walpole, ME 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