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

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Joice Island, Suisun Slough, CA.
Next low tide : in 7h 12m at 8:20 am (-0.1 ft)
Next high tide : 2:11 pm (4.4 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - Jan 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:084.84:085.211:041.311:43-0.37:244:58Waning Gibbous1Sun
2Mon5:534.95:114.712:061.27:244:59Waning Gibbous2Mon
3Tue6:404.96:224.112:230.01:131.07:255:00Third Quarter3Tue
4Wed7:275.07:403.71:040.42:240.87:255:00Third Quarter4Wed
5Thu8:165.08:583.51:500.73:350.57:255:01Third Quarter5Thu
6Fri9:045.110:113.62:411.14:420.37:255:02Third Quarter6Fri
7Sat9:515.211:153.83:361.55:410.07:255:03Waning Crescent7Sat
8Sun10:355.24:321.86:34-0.17:255:04Waning Crescent8Sun
9Mon12:124.011:14 AM5.35:262.07:21-0.27:245:05Waning Crescent9Mon
10Tue1:024.211:50 AM5.36:162.18:03-0.27:245:06Waning Crescent10Tue
11Wed1:474.312:235.37:032.18:40-0.27:245:07New Moon11Wed
12Thu2:294.412:565.37:482.19:13-0.27:245:08New Moon12Thu
13Fri3:064.41:305.28:302.09:41-0.17:245:09New Moon13Fri
14Sat3:394.42:075.19:101.910:03-0.17:235:10New Moon14Sat
15Sun4:084.42:474.99:491.710:220.07:235:11Waxing Crescent15Sun
16Mon4:324.43:314.710:301.510:450.07:235:12Waxing Crescent16Mon
17Tue4:544.54:194.311:131.311:150.27:225:13Waxing Crescent17Tue
18Wed5:194.75:163.912:031.27:225:14Waxing Crescent18Wed
19Thu5:524.96:293.61:051.17:225:15First Quarter19Thu
20Fri6:345.18:073.312:360.82:261.07:215:16First Quarter20Fri
21Sat7:235.39:403.41:281.23:530.77:215:17First Quarter21Sat
22Sun8:215.510:553.62:291.65:060.47:205:18Waxing Gibbous22Sun
23Mon9:235.711:573.93:381.96:070.17:205:19Waxing Gibbous23Mon
24Tue10:265.94:502.07:01-0.27:195:21Waxing Gibbous24Tue
25Wed12:514.211:27 AM6.15:582.07:49-0.37:185:22Waxing Gibbous25Wed
26Thu1:394.512:246.17:021.88:33-0.47:185:23Full Moon26Thu
27Fri2:234.71:196.18:021.69:14-0.47:175:24Full Moon27Fri
28Sat3:064.92:135.88:591.39:52-0.37:165:25Full Moon28Sat
29Sun3:465.03:065.59:541.110:28-0.27:155:26Waning Gibbous29Sun
30Mon4:255.04:015.010:490.911:020.17:155:27Waning Gibbous30Mon
31Tue5:045.15:004.611:460.811:360.47:145:28Waning Gibbous31Tue
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 11:15 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 Joice Island, Suisun Slough, CA?

Joice Island, Suisun Slough, CA is currently in a spring phase. Tonight's moon is 5% 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 (5% 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