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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Joice Island, Suisun Slough, CA.
Next low tide (tomorrow) : 4:04 am (1.0 ft)
Next high tide : in 4h 24m at 9:21 pm (4.9 ft)
Sunset today : 8:34 pm
Sunrise tomorrow : 5:45 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - Aug 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:064.86:274.712:031.712:180.26:118:17Waning Gibbous1Wed
2Thu5:594.46:564.812:501.612:520.46:118:16Waning Gibbous2Thu
3Fri7:024.07:335.01:451.41:330.76:128:15Third Quarter3Fri
4Sat8:263.78:175.32:551.32:211.06:138:14Third Quarter4Sat
5Sun10:003.69:095.54:191.13:171.46:148:13Third Quarter5Sun
6Mon11:213.710:055.85:360.84:181.86:158:12Waning Crescent6Mon
7Tue12:294.06:410.55:232.06:168:11Waning Crescent7Tue
8Wed1:274.37:380.26:292.16:178:10Waning Crescent8Wed
9Thu12:036.22:194.58:300.07:342.16:188:09Waning Crescent9Thu
10Fri1:006.33:074.79:17-0.18:361.96:188:08New Moon10Fri
11Sat1:566.43:534.910:02-0.29:351.76:198:06New Moon11Sat
12Sun2:516.24:365.010:43-0.210:331.56:208:05New Moon12Sun
13Mon3:465.95:185.111:22-0.111:301.36:218:04Waxing Crescent13Mon
14Tue4:435.56:005.112:000.16:228:03Waxing Crescent14Tue
15Wed5:425.16:425.112:281.212:370.46:238:01Waxing Crescent15Wed
16Thu6:474.67:265.11:291.01:160.76:248:00First Quarter16Thu
17Fri7:594.28:135.12:360.92:001.06:257:59First Quarter17Fri
18Sat9:144.09:055.13:460.82:521.46:257:57First Quarter18Sat
19Sun10:273.99:595.14:550.63:511.76:267:56First Quarter19Sun
20Mon11:334.110:535.15:580.44:541.96:277:55Waxing Gibbous20Mon
21Tue12:314.36:530.25:542.06:287:53Waxing Gibbous21Tue
22Wed1:224.57:410.16:492.16:297:52Waxing Gibbous22Wed
23Thu12:265.32:074.68:240.17:392.06:307:51Waxing Gibbous23Thu
24Fri1:065.32:474.79:020.18:251.96:317:49Full Moon24Fri
25Sat1:435.33:234.79:350.29:081.86:327:48Full Moon25Sat
26Sun2:195.23:544.610:030.29:471.76:327:46Full Moon26Sun
27Mon2:565.14:194.610:270.310:241.56:337:45Full Moon27Mon
28Tue3:345.04:384.710:480.411:011.36:347:43Waning Gibbous28Tue
29Wed4:164.84:574.811:110.411:391.26:357:42Waning Gibbous29Wed
30Thu5:024.65:225.011:410.66:367:41Waning Gibbous30Thu
31Fri5:564.25:565.212:221.112:180.86:377:39Waning Gibbous31Fri
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 12:42 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 49% 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 (49% 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