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

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Joice Island, Suisun Slough, CA.
Next low tide : 11:02 am (-0.1 ft)
Next high tide : in 3h 32m at 3:13 am (5.4 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:09 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - Mar 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:164.73:134.29:560.99:430.56:386:01Waxing Crescent1Sun
2Mon3:294.83:574.010:320.810:040.86:376:02Waxing Crescent2Mon
3Tue3:445.04:473.711:080.710:321.16:356:03Waxing Crescent3Tue
4Wed4:075.15:513.411:480.711:071.46:346:04Waxing Crescent4Wed
5Thu4:395.37:123.312:410.76:326:05First Quarter5Thu
6Fri5:195.38:383.31:590.76:316:06First Quarter6Fri
7Sat6:095.29:523.512:462.23:260.66:296:07First Quarter7Sat
8Sun8:125.111:513.71:572.45:360.47:287:08First Quarter8Sun
9Mon9:275.04:192.46:310.17:267:09Waxing Gibbous9Mon
10Tue12:393.910:46 AM5.15:352.17:16-0.17:257:10Waxing Gibbous10Tue
11Wed1:184.111:56 AM5.26:391.87:56-0.27:237:11Waxing Gibbous11Wed
12Thu1:534.312:565.37:351.38:31-0.27:227:12Waxing Gibbous12Thu
13Fri2:234.51:525.38:280.99:04-0.17:207:13Full Moon13Fri
14Sat2:524.82:465.29:200.59:360.17:197:14Full Moon14Sat
15Sun3:195.13:405.010:120.210:080.47:177:15Full Moon15Sun
16Mon3:485.44:384.611:040.010:430.77:167:16Waning Gibbous16Mon
17Tue4:205.65:404.312:000.07:147:17Waning Gibbous17Tue
18Wed4:555.76:494.01:010.07:137:18Waning Gibbous18Wed
19Thu5:375.68:063.812:051.52:100.17:117:19Third Quarter19Thu
20Fri6:265.39:233.812:591.93:250.27:107:20Third Quarter20Fri
21Sat7:314.910:334.02:112.24:370.17:087:21Third Quarter21Sat
22Sun9:024.611:334.23:392.35:410.07:077:22Third Quarter22Sun
23Mon10:354.55:042.16:34-0.17:057:23Waning Crescent23Mon
24Tue12:244.411:44 AM4.46:131.77:19-0.27:047:24Waning Crescent24Tue
25Wed1:074.612:394.47:101.37:56-0.17:027:25Waning Crescent25Wed
26Thu1:444.71:264.37:591.08:280.07:007:26Waning Crescent26Thu
27Fri2:154.72:084.28:440.78:550.36:597:27New Moon27Fri
28Sat2:414.82:504.19:260.59:170.66:577:28New Moon28Sat
29Sun3:004.83:324.010:040.49:350.96:567:28New Moon29Sun
30Mon3:134.94:163.910:400.39:561.16:547:29New Moon30Mon
31Tue3:265.15:033.811:140.310:231.46:537:30Waxing 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 7:07 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 99% 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 Full Moon (99% 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