Tides Today & Tomorrow in Biddeford, Saco River, ME

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Biddeford, Saco River, ME.
Next low tide (tomorrow) : 1:27 am (1.3 ft)
Next high tide : in 1h 59m at 6:49 pm (8.5 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:53 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8418606
Common Questions About Tides

Biddeford, Saco River, ME Tides - Mar 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:479.23:148.49:110.69:241.26:185:29Third Quarter1Fri
2Sat3:328.94:057.910:021.010:131.76:165:31Third Quarter2Sat
3Sun4:228.65:017.510:571.211:082.06:145:32Third Quarter3Sun
4Mon5:178.46:037.211:571.46:135:33Third Quarter4Mon
5Tue6:178.37:067.212:072.212:581.46:115:34Waning Crescent5Tue
6Wed7:178.48:037.31:062.21:541.36:095:36Waning Crescent6Wed
7Thu8:128.58:547.62:012.12:451.16:085:37Waning Crescent7Thu
8Fri9:008.89:377.92:501.83:300.86:065:38Waning Crescent8Fri
9Sat9:439.110:158.33:361.54:110.66:045:39New Moon9Sat
10Sun10:239.410:508.74:181.14:480.36:025:41New Moon10Sun
11Mon11:019.611:259.24:570.75:240.16:015:42New Moon11Mon
12Tue11:409.85:370.36:000.05:595:43New Moon12Tue
13Wed12:029.612:219.86:18-0.16:38-0.15:575:44Waxing Crescent13Wed
14Thu12:4210.01:069.77:02-0.37:190.05:555:46Waxing Crescent14Thu
15Fri1:2510.21:549.57:49-0.48:040.25:545:47Waxing Crescent15Fri
16Sat2:1310.22:489.18:42-0.48:550.55:525:48First Quarter16Sat
17Sun3:0610.23:468.79:41-0.29:530.85:505:49First Quarter17Sun
18Mon4:0610.04:528.410:460.010:591.15:485:50First Quarter18Mon
19Tue5:129.86:048.211:550.15:465:52First Quarter19Tue
20Wed6:249.77:168.412:101.21:040.05:455:53Waxing Gibbous20Wed
21Thu7:349.88:218.71:191.02:08-0.15:435:54Waxing Gibbous21Thu
22Fri8:389.99:189.12:230.73:05-0.35:415:55Waxing Gibbous22Fri
23Sat9:3510.110:099.43:220.33:57-0.45:395:56Full Moon23Sat
24Sun10:2610.110:539.74:150.04:44-0.45:375:58Full Moon24Sun
25Mon11:129.911:349.85:03-0.25:27-0.35:365:59Full Moon25Mon
26Tue11:549.75:47-0.26:060.05:346:00Full Moon26Tue
27Wed12:129.812:359.36:29-0.26:440.35:326:01Waning Gibbous27Wed
28Thu12:499.61:159.07:100.07:220.75:306:02Waning Gibbous28Thu
29Fri1:269.41:558.57:510.38:011.25:286:03Waning Gibbous29Fri
30Sat2:059.22:398.18:350.68:431.65:276:05Waning Gibbous30Sat
31Sun2:488.93:267.89:220.99:301.95:256:06Third Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418606)

Common Questions About Biddeford, Saco River, ME Tides

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What time does the tide turn (slack tide) in Biddeford, Saco River, ME today?

Slack tide in Biddeford, Saco River, ME is approximately 10:08 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 Biddeford, Saco River, ME?

Biddeford, Saco River, ME is currently in a transitional phase. Tonight's moon is 65% 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 Biddeford, Saco River, 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 Biddeford, Saco River, ME?

Tide predictions for Biddeford, Saco River, 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 Biddeford, Saco River, ME?

Tide data for Biddeford, Saco River, ME is sourced from NOAA Station #8418606. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8418606.

What is the moon phase in Biddeford, Saco River, ME tonight?

Tonight the moon over Biddeford, Saco River, ME is First Quarter (65% illuminated). This places Biddeford, Saco River, ME 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