Tides Today & Tomorrow in Joice Island, Suisun Slough, CA

TIDE TIMES for Saturday, August 22, 2026
The tide is currently falling in Joice Island, Suisun Slough, CA.
Next low tide : in 2h 21m at 4:53 pm (2.5 ft)
Next high tide : 10:29 pm (5.1 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - May 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:436.03:544.29:55-0.39:101.75:116:58New Moon1Sun
2Mon2:266.04:514.210:45-0.410:031.75:106:59Waxing Crescent2Mon
3Tue3:145.95:504.211:37-0.311:031.85:097:00Waxing Crescent3Tue
4Wed4:075.66:514.212:33-0.35:087:01Waxing Crescent4Wed
5Thu5:095.17:504.312:111.71:31-0.25:077:02First Quarter5Thu
6Fri6:244.68:474.51:271.62:30-0.15:067:03First Quarter6Fri
7Sat7:534.29:394.72:471.33:270.05:057:04First Quarter7Sat
8Sun9:174.010:274.94:000.94:190.25:047:05Waxing Gibbous8Sun
9Mon10:283.911:095.15:060.55:050.45:037:06Waxing Gibbous9Mon
10Tue11:304.011:475.36:050.15:480.65:027:07Waxing Gibbous10Tue
11Wed12:264.06:58-0.16:261.05:017:07Waxing Gibbous11Wed
12Thu12:205.41:194.17:47-0.37:031.35:007:08Full Moon12Thu
13Fri12:485.42:094.18:34-0.37:381.64:597:09Full Moon13Fri
14Sat1:125.42:584.29:17-0.38:151.84:587:10Full Moon14Sat
15Sun1:355.43:464.29:57-0.28:532.04:577:11Full Moon15Sun
16Mon2:015.44:334.210:35-0.29:352.14:567:12Waning Gibbous16Mon
17Tue2:345.35:204.111:10-0.110:202.14:557:13Waning Gibbous17Tue
18Wed3:135.16:074.111:43-0.111:092.04:547:14Waning Gibbous18Wed
19Thu3:574.86:534.012:16-0.14:547:14Waning Gibbous19Thu
20Fri4:484.47:394.012:051.912:530.04:537:15Third Quarter20Fri
21Sat5:474.08:224.11:091.81:340.14:527:16Third Quarter21Sat
22Sun7:013.69:024.32:201.52:190.34:517:17Third Quarter22Sun
23Mon8:303.49:384.53:311.23:060.54:517:18Third Quarter23Mon
24Tue9:553.410:104.94:360.93:530.74:507:19Waning Crescent24Tue
25Wed11:053.510:415.35:350.54:391.04:507:19Waning Crescent25Wed
26Thu12:073.76:290.25:251.34:497:20Waning Crescent26Thu
27Fri1:053.97:20-0.16:131.64:487:21Waning Crescent27Fri
28Sat2:014.18:10-0.37:051.84:487:22New Moon28Sat
29Sun12:356.22:554.29:00-0.48:001.94:477:22New Moon29Sun
30Mon1:216.33:494.39:48-0.58:582.04:477:23New Moon30Mon
31Tue2:106.24:424.410:36-0.59:581.94:477:24Waxing Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415379)

Common Questions About Joice Island, Suisun Slough, CA Tides

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What time does the tide turn (slack tide) in Joice Island, Suisun Slough, CA today?

Slack tide in Joice Island, Suisun Slough, CA is approximately 7:41 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 Joice Island, Suisun Slough, CA?

Joice Island, Suisun Slough, CA is currently in a transitional phase. Tonight's moon is 74% 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 Joice Island, Suisun Slough, 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 Joice Island, Suisun Slough, CA?

Tide predictions for Joice Island, Suisun Slough, 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 Joice Island, Suisun Slough, CA?

Tide data for Joice Island, Suisun Slough, CA is sourced from NOAA Station #9415379. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415379.

What is the moon phase in Joice Island, Suisun Slough, CA tonight?

Tonight the moon over Joice Island, Suisun Slough, CA is Waxing Gibbous (74% illuminated). This places Joice Island, Suisun Slough, 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