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

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Joice Island, Suisun Slough, CA.
Next low tide : 1:40 pm (1.7 ft)
Next high tide : in 1h 45m at 8:38 am (3.7 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 6:26 am
Moon phase : First Quarter (47% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - May 1941

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:595.16:513.811:550.111:501.85:116:58Waxing Crescent1Thu
2Fri4:474.97:473.812:420.15:106:59First Quarter2Fri
3Sat5:454.68:403.912:531.81:390.15:097:00First Quarter3Sat
4Sun6:534.39:294.12:061.72:410.15:087:01First Quarter4Sun
5Mon8:154.110:124.43:221.43:390.25:067:02First Quarter5Mon
6Tue9:384.110:504.74:311.14:310.35:057:03Waxing Gibbous6Tue
7Wed10:514.211:265.05:320.75:180.45:047:04Waxing Gibbous7Wed
8Thu11:554.36:290.36:040.65:037:05Waxing Gibbous8Thu
9Fri12:005.412:544.47:24-0.16:490.95:027:06Full Moon9Fri
10Sat12:355.71:524.58:17-0.37:361.15:017:07Full Moon10Sat
11Sun1:135.92:504.59:09-0.48:261.45:007:08Full Moon11Sun
12Mon1:536.03:484.510:01-0.59:181.64:597:09Waning Gibbous12Mon
13Tue2:365.94:474.510:53-0.510:131.74:587:09Waning Gibbous13Tue
14Wed3:235.65:464.511:45-0.411:131.84:587:10Waning Gibbous14Wed
15Thu4:155.36:454.512:39-0.34:577:11Waning Gibbous15Thu
16Fri5:164.87:434.512:191.81:33-0.24:567:12Third Quarter16Fri
17Sat6:314.38:384.61:311.72:28-0.14:557:13Third Quarter17Sat
18Sun7:573.99:304.82:461.53:210.14:547:14Third Quarter18Sun
19Mon9:163.710:174.93:561.14:100.24:537:15Third Quarter19Mon
20Tue10:233.710:585.04:590.74:550.44:537:16Waning Crescent20Tue
21Wed11:223.711:345.15:550.45:350.74:527:16Waning Crescent21Wed
22Thu12:153.86:450.26:111.04:517:17Waning Crescent22Thu
23Fri12:055.21:053.97:310.06:451.34:517:18Waning Crescent23Fri
24Sat12:295.21:533.98:14-0.17:181.64:507:19New Moon24Sat
25Sun12:495.32:394.08:54-0.17:521.84:497:20New Moon25Sun
26Mon1:105.43:254.09:31-0.18:291.94:497:20New Moon26Mon
27Tue1:385.54:094.110:04-0.19:102.04:487:21New Moon27Tue
28Wed2:125.54:534.110:33-0.19:542.04:487:22Waxing Crescent28Wed
29Thu2:525.55:374.111:01-0.110:422.04:477:23Waxing Crescent29Thu
30Fri3:375.36:214.111:33-0.211:351.94:477:23Waxing Crescent30Fri
31Sat4:285.07:064.112:11-0.14:467:24Waxing Crescent31Sat
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 11:09 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 neap phase. Tonight's moon is 47% 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 minimum.

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 (47% illuminated). This places Joice Island, Suisun Slough, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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