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

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Joice Island, Suisun Slough, CA.
Next low tide : in 2h 47m at 6:04 pm (2.5 ft)
Next high tide : 11:39 pm (6.2 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:054.86:140.26:280.76:045:51Waning Crescent1Mon
2Tue12:435.16:550.37:240.46:055:49New Moon2Tue
3Wed12:515.01:185.37:330.58:160.26:055:48New Moon3Wed
4Thu1:454.91:505.48:100.89:080.16:065:46New Moon4Thu
5Fri2:384.72:205.58:461.19:580.16:075:45New Moon5Fri
6Sat3:324.62:505.49:231.310:470.16:085:43Waxing Crescent6Sat
7Sun4:284.43:225.410:021.611:380.26:095:42Waxing Crescent7Sun
8Mon5:274.23:595.210:461.86:105:40Waxing Crescent8Mon
9Tue6:284.14:424.912:300.311:37 AM1.96:115:39First Quarter9Tue
10Wed7:294.15:364.61:270.312:372.06:125:37First Quarter10Wed
11Thu8:284.16:474.22:250.31:471.96:135:36First Quarter11Thu
12Fri9:234.18:144.03:210.33:011.86:145:34First Quarter12Fri
13Sat10:124.29:313.94:120.34:081.56:155:33First Quarter13Sat
14Sun10:544.410:344.04:560.35:061.16:165:31Waxing Gibbous14Sun
15Mon11:304.511:284.05:340.45:580.86:175:30Waxing Gibbous15Mon
16Tue12:004.76:070.56:450.66:185:29Waxing Gibbous16Tue
17Wed12:174.112:244.86:360.87:290.46:195:27Waxing Gibbous17Wed
18Thu1:034.112:435.07:041.08:110.36:205:26Full Moon18Thu
19Fri1:504.11:045.37:341.28:510.26:215:25Full Moon19Fri
20Sat2:384.11:325.68:091.49:320.16:225:23Full Moon20Sat
21Sun3:274.12:075.88:481.610:140.06:235:22Waning Gibbous21Sun
22Mon4:204.12:485.89:331.711:000.06:245:21Waning Gibbous22Mon
23Tue5:184.03:355.710:241.811:530.06:255:19Waning Gibbous23Tue
24Wed6:183.94:295.411:221.86:265:18Waning Gibbous24Wed
25Thu7:204.05:325.012:530.112:311.86:275:17Third Quarter25Thu
26Fri8:204.16:504.61:570.11:501.66:285:16Third Quarter26Fri
27Sat9:154.38:204.33:000.13:101.36:295:14Third Quarter27Sat
28Sun10:044.59:434.33:560.14:220.96:305:13Waning Crescent28Sun
29Mon10:494.810:524.34:460.25:270.56:315:12Waning Crescent29Mon
30Tue11:295.111:534.35:320.46:250.16:325:11Waning Crescent30Tue
31Wed12:065.36:130.77:19-0.16:335:10Waning Crescent31Wed
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 8:51 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 spring phase. Tonight's moon is 12% 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 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 Waning Crescent (12% illuminated). This places Joice Island, Suisun Slough, CA 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