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

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Joice Island, Suisun Slough, CA.
Next low tide : 12:54 pm (0.8 ft)
Next high tide : in 4h 05m at 6:37 am (4.0 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:13 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - May 1965

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:125.43:424.09:57-0.19:131.36:117:59New Moon1Sat
2Sun2:405.74:384.010:41-0.29:531.66:108:00New Moon2Sun
3Mon3:165.95:384.011:28-0.310:401.86:088:01Waxing Crescent3Mon
4Tue3:576.06:433.912:20-0.36:078:01Waxing Crescent4Tue
5Wed4:445.87:494.01:19-0.26:068:02Waxing Crescent5Wed
6Thu5:395.58:534.012:362.22:24-0.26:058:03First Quarter6Thu
7Fri6:445.09:534.21:522.23:30-0.16:048:04First Quarter7Fri
8Sat8:084.610:474.43:172.04:31-0.16:038:05First Quarter8Sat
9Sun9:424.311:344.74:381.65:25-0.16:028:06First Quarter9Sun
10Mon11:034.25:481.16:120.06:018:07Waxing Gibbous10Mon
11Tue12:174.912:104.16:500.66:540.26:008:08Waxing Gibbous11Tue
12Wed12:545.11:084.17:450.27:310.55:598:09Waxing Gibbous12Wed
13Thu1:285.32:034.18:37-0.18:050.95:588:10Full Moon13Thu
14Fri1:565.42:564.19:25-0.28:371.35:578:11Full Moon14Fri
15Sat2:205.43:484.110:11-0.39:101.65:578:11Full Moon15Sat
16Sun2:405.54:404.110:54-0.39:451.95:568:12Full Moon16Sun
17Mon3:035.55:334.111:36-0.210:252.25:558:13Waning Gibbous17Mon
18Tue3:315.46:264.112:16-0.25:548:14Waning Gibbous18Tue
19Wed4:075.37:204.112:56-0.15:538:15Waning Gibbous19Wed
20Thu4:485.18:124.112:002.41:380.05:538:16Waning Gibbous20Thu
21Fri5:374.79:034.112:582.32:220.05:528:17Third Quarter21Fri
22Sat6:354.39:504.12:052.23:080.05:518:17Third Quarter22Sat
23Sun7:463.910:334.23:192.03:540.15:518:18Third Quarter23Sun
24Mon9:143.611:094.44:311.64:370.25:508:19Third Quarter24Mon
25Tue10:383.511:404.65:351.25:170.45:498:20Waning Crescent25Tue
26Wed11:493.56:310.85:540.65:498:21Waning Crescent26Wed
27Thu12:054.912:523.77:230.56:320.95:488:21Waning Crescent27Thu
28Fri12:295.31:513.88:120.17:111.35:488:22Waning Crescent28Fri
29Sat12:565.72:483.99:01-0.17:531.75:478:23New Moon29Sat
30Sun1:286.03:464.09:49-0.38:402.05:478:24New Moon30Sun
31Mon2:076.34:434.110:38-0.49:322.25:468:24New Moon31Mon
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 9:45 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 64% 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 Third Quarter (64% 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