Tides Today & Tomorrow in Yarmouth, Royal River, ME

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Yarmouth, Royal River, ME.
Next low tide : 9:50 am (0.7 ft)
Next high tide : in 1h 15m at 3:47 am (9.1 ft)
Sunset today : 7:40 pm
Sunrise tomorrow : 5:48 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8417948
Common Questions About Tides

Yarmouth, Royal River, ME Tides - Feb 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:4410.28:269.11:230.42:13-0.56:584:50Waxing Gibbous1Wed
2Thu8:4310.89:239.62:24-0.13:10-1.16:574:51Waxing Gibbous2Thu
3Fri9:3911.310:1710.23:21-0.64:03-1.66:564:53Full Moon3Fri
4Sat10:3311.611:0910.64:17-1.14:55-2.06:544:54Full Moon4Sat
5Sun11:2711.75:11-1.45:45-2.16:534:55Full Moon5Sun
6Mon12:0010.912:1911.56:04-1.66:34-1.96:524:57Waning Gibbous6Mon
7Tue12:5011.01:1111.16:57-1.57:24-1.66:514:58Waning Gibbous7Tue
8Wed1:4010.82:0510.57:51-1.28:15-1.06:504:59Waning Gibbous8Wed
9Thu2:3310.53:029.88:48-0.79:09-0.36:485:01Third Quarter9Thu
10Fri3:2910.14:039.19:48-0.210:060.36:475:02Third Quarter10Fri
11Sat4:279.65:058.510:510.211:060.96:465:04Third Quarter11Sat
12Sun5:279.36:108.211:560.66:445:05Third Quarter12Sun
13Mon6:309.17:148.112:101.21:020.76:435:06Waning Crescent13Mon
14Tue7:309.08:118.11:141.32:020.66:415:08Waning Crescent14Tue
15Wed8:249.29:018.32:111.22:530.46:405:09Waning Crescent15Wed
16Thu9:129.39:458.63:001.03:370.36:385:10Waning Crescent16Thu
17Fri9:549.510:248.83:430.84:160.16:375:12New Moon17Fri
18Sat10:339.611:019.04:220.64:510.06:365:13New Moon18Sat
19Sun11:109.611:359.24:590.45:23-0.16:345:14New Moon19Sun
20Mon11:459.65:330.35:54-0.16:325:16New Moon20Mon
21Tue12:079.312:189.56:070.26:250.06:315:17Waxing Crescent21Tue
22Wed12:389.412:529.46:420.26:580.16:295:18Waxing Crescent22Wed
23Thu1:109.41:289.27:190.27:350.26:285:20Waxing Crescent23Thu
24Fri1:459.52:098.98:000.28:150.46:265:21Waxing Crescent24Fri
25Sat2:269.52:558.78:460.39:010.66:255:22First Quarter25Sat
26Sun3:149.43:488.49:380.39:530.76:235:24First Quarter26Sun
27Mon4:089.44:488.310:360.410:510.86:215:25First Quarter27Mon
28Tue5:099.55:558.411:400.311:560.76:205:26First Quarter28Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417948)

Common Questions About Yarmouth, Royal River, ME Tides

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What time does the tide turn (slack tide) in Yarmouth, Royal River, ME today?

Slack tide in Yarmouth, Royal River, ME is approximately 6:48 am — 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 Yarmouth, Royal River, ME?

Yarmouth, Royal River, ME is currently in a transitional phase. Tonight's moon is 36% 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 Yarmouth, Royal 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 Yarmouth, Royal River, ME?

Tide predictions for Yarmouth, Royal 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 Yarmouth, Royal River, ME?

Tide data for Yarmouth, Royal River, ME is sourced from NOAA Station #8417948. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8417948.

What is the moon phase in Yarmouth, Royal River, ME tonight?

Tonight the moon over Yarmouth, Royal River, ME is First Quarter (36% illuminated). This places Yarmouth, Royal 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