Tides Today & Tomorrow in Cuyler Harbor, San Miguel Island, CA

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Cuyler Harbor, San Miguel Island, CA.
Next low tide (tomorrow) : 1:54 am (0.6 ft)
Next high tide : in 12h 22m at 5:51 pm (4.5 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (66% illuminated)
Tide Station Location : Station #9410988
Common Questions About Tides

Cuyler Harbor, San Miguel Island, CA Tides - Apr 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:143.36:54-0.86:061.66:477:22Waxing Crescent1Tue
2Wed12:325.62:402.98:00-0.56:432.16:467:23Waxing Crescent2Wed
3Thu1:235.24:562.89:21-0.37:392.66:457:23First Quarter3Thu
4Fri2:334.76:523.110:55-0.210:012.96:437:24First Quarter4Fri
5Sat4:114.47:383.512:16-0.26:427:25First Quarter5Sat
6Sun5:474.48:093.812:082.61:14-0.36:417:26First Quarter6Sun
7Mon6:594.48:364.11:182.11:58-0.36:397:27Waxing Gibbous7Mon
8Tue7:524.58:594.32:061.52:32-0.26:387:27Waxing Gibbous8Tue
9Wed8:364.59:194.52:451.13:000.06:377:28Waxing Gibbous9Wed
10Thu9:144.49:384.73:190.73:230.36:357:29Waxing Gibbous10Thu
11Fri9:494.29:564.93:510.43:430.66:347:30Full Moon11Fri
12Sat10:244.010:145.04:220.14:020.96:337:30Full Moon12Sat
13Sun10:583.710:335.14:53-0.14:211.26:327:31Full Moon13Sun
14Mon11:353.410:555.15:26-0.14:391.56:307:32Full Moon14Mon
15Tue12:173.16:01-0.14:561.86:297:33Waning Gibbous15Tue
16Wed1:072.86:410.05:102.16:287:33Waning Gibbous16Wed
17Thu2:242.57:310.25:132.46:277:34Waning Gibbous17Thu
18Fri12:174.68:370.46:257:35Waning Gibbous18Fri
19Sat1:034.410:010.46:247:36Third Quarter19Sat
20Sun2:224.17:373.211:180.310:213.06:237:36Third Quarter20Sun
21Mon4:134.07:303.512:140.16:227:37Third Quarter21Mon
22Tue5:434.17:433.912:092.612:57-0.16:217:38Third Quarter22Tue
23Wed6:514.38:034.41:081.91:33-0.16:197:39Waning Crescent23Wed
24Thu7:484.58:285.01:561.12:070.06:187:40Waning Crescent24Thu
25Fri8:424.58:565.52:420.22:410.26:177:40Waning Crescent25Fri
26Sat9:344.49:286.03:28-0.53:150.56:167:41New Moon26Sat
27Sun10:274.210:036.34:14-1.13:490.86:157:42New Moon27Sun
28Mon11:223.910:416.35:02-1.44:251.26:147:43New Moon28Mon
29Tue12:223.65:53-1.45:031.76:137:43Waxing Crescent29Tue
30Wed1:303.36:48-1.35:462.16:127:44Waxing Crescent30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9410988)

Common Questions About Cuyler Harbor, San Miguel Island, CA Tides

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What time does the tide turn (slack tide) in Cuyler Harbor, San Miguel Island, CA today?

Slack tide in Cuyler Harbor, San Miguel Island, CA is approximately 9:52 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 Cuyler Harbor, San Miguel Island, CA?

Cuyler Harbor, San Miguel Island, CA is currently in a transitional phase. Tonight's moon is 66% 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 Cuyler Harbor, San Miguel Island, CA 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 Cuyler Harbor, San Miguel Island, CA?

Tide predictions for Cuyler Harbor, San Miguel Island, CA 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 Cuyler Harbor, San Miguel Island, CA?

Tide data for Cuyler Harbor, San Miguel Island, CA is sourced from NOAA Station #9410988. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9410988.

What is the moon phase in Cuyler Harbor, San Miguel Island, CA tonight?

Tonight the moon over Cuyler Harbor, San Miguel Island, CA is First Quarter (66% illuminated). This places Cuyler Harbor, San Miguel Island, CA 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