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

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Joice Island, Suisun Slough, CA.
Next low tide : 5:52 am (0.5 ft)
Next high tide (tomorrow) : in 39m at 9:43 pm (5.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:02 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - Sep 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:524.17:215.42:170.61:281.36:387:37First Quarter1Sat
2Sun9:123.98:185.33:320.52:251.76:397:36First Quarter2Sun
3Mon10:284.09:255.24:460.43:342.06:397:34First Quarter3Mon
4Tue11:354.210:365.25:520.24:492.26:407:33Waxing Gibbous4Tue
5Wed12:334.56:500.15:582.26:417:31Waxing Gibbous5Wed
6Thu1:224.67:390.06:592.06:427:30Waxing Gibbous6Thu
7Fri12:325.22:064.78:22-0.17:511.96:437:28Waxing Gibbous7Fri
8Sat1:185.22:444.89:000.08:381.76:447:26Full Moon8Sat
9Sun1:595.03:184.79:320.19:211.56:457:25Full Moon9Sun
10Mon2:384.93:464.79:590.310:011.36:457:23Full Moon10Mon
11Tue3:164.74:074.610:200.410:381.26:467:22Full Moon11Tue
12Wed3:554.54:214.710:370.611:141.06:477:20Waning Gibbous12Wed
13Thu4:374.24:364.910:580.811:480.96:487:19Waning Gibbous13Thu
14Fri5:244.04:585.111:261.06:497:17Waning Gibbous14Fri
15Sat6:233.75:305.212:260.912:011.36:507:16Waning Gibbous15Sat
16Sun7:383.56:105.31:120.912:441.76:517:14Third Quarter16Sun
17Mon9:033.56:595.32:190.91:362.06:527:12Third Quarter17Mon
18Tue10:213.67:585.23:500.82:422.36:527:11Third Quarter18Tue
19Wed11:253.89:095.25:070.63:582.46:537:09Third Quarter19Wed
20Thu12:174.06:090.35:142.26:547:08Waning Crescent20Thu
21Fri1:014.36:590.16:211.96:557:06Waning Crescent21Fri
22Sat1:404.47:43-0.17:211.56:567:05Waning Crescent22Sat
23Sun12:425.52:154.68:23-0.18:161.16:577:03New Moon23Sun
24Mon1:415.52:474.89:000.09:100.76:587:01New Moon24Mon
25Tue2:365.43:185.09:360.210:040.46:587:00New Moon25Tue
26Wed3:325.23:505.310:110.410:580.26:596:58Waxing Crescent26Wed
27Thu4:304.94:225.410:470.711:540.17:006:57Waxing Crescent27Thu
28Fri5:324.64:585.511:261.17:016:55Waxing Crescent28Fri
29Sat6:394.35:395.412:540.112:101.57:026:54Waxing Crescent29Sat
30Sun7:524.16:285.21:590.21:031.87:036:52First Quarter30Sun
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 1:47 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 transitional phase. Tonight's moon is 63% 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 First Quarter (63% 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