38.1800’ N, 122.0450’ W

Joice Island, Suisun Slough, CA

58°
H -°
L 57°
SW
15mph
Low tide
7:05 am

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

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently falling in Joice Island, Suisun Slough, CA.
Next low tide : in 7h 37m at 7:05 am (0.1 ft)
Next high tide : 12:59 pm (4.3 ft)
Sunset today : 7:06 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #9415379
Common Questions About Tides

Joice Island, Suisun Slough, CA Tides - Apr 1878

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:224.71:344.08:080.57:560.65:596:38New Moon1Mon
2Tue1:414.82:164.08:470.48:150.95:586:39New Moon2Tue
3Wed1:535.02:593.99:230.38:371.25:566:40New Moon3Wed
4Thu2:075.23:463.89:570.29:061.45:556:41New Moon4Thu
5Fri2:305.44:373.710:290.29:411.75:536:42Waxing Crescent5Fri
6Sat3:025.65:363.611:040.210:231.95:526:42Waxing Crescent6Sat
7Sun3:415.66:433.511:490.211:132.15:506:43Waxing Crescent7Sun
8Mon4:275.57:513.512:500.25:496:44First Quarter8Mon
9Tue5:225.28:553.612:132.22:070.25:476:45First Quarter9Tue
10Wed6:294.99:493.81:282.23:180.15:466:46First Quarter10Wed
11Thu7:504.610:344.02:522.04:170.05:446:47First Quarter11Thu
12Fri9:184.511:134.34:101.55:05-0.15:436:48Waxing Gibbous12Fri
13Sat10:344.511:484.65:161.05:470.05:416:49Waxing Gibbous13Sat
14Sun11:404.66:150.56:260.25:406:50Waxing Gibbous14Sun
15Mon12:204.912:404.67:110.17:020.45:396:51Full Moon15Mon
16Tue12:505.31:374.58:05-0.27:390.85:376:52Full Moon16Tue
17Wed1:215.62:354.48:58-0.48:171.25:366:53Full Moon17Wed
18Thu1:525.83:344.39:50-0.48:591.55:346:54Full Moon18Thu
19Fri2:265.94:354.210:43-0.49:451.85:336:55Waning Gibbous19Fri
20Sat3:045.85:384.111:38-0.310:362.05:326:55Waning Gibbous20Sat
21Sun3:465.56:424.112:35-0.25:306:56Waning Gibbous21Sun
22Mon4:355.07:444.11:35-0.15:296:57Third Quarter22Mon
23Tue5:374.58:434.112:482.22:340.05:286:58Third Quarter23Tue
24Wed7:014.09:364.22:082.13:300.05:266:59Third Quarter24Wed
25Thu8:373.710:224.43:261.74:190.05:257:00Third Quarter25Thu
26Fri9:533.611:034.54:331.35:010.15:247:01Waning Crescent26Fri
27Sat10:553.611:374.75:310.95:370.35:227:02Waning Crescent27Sat
28Sun11:493.66:220.56:070.65:217:03Waning Crescent28Sun
29Mon12:044.812:393.67:090.26:340.95:207:04Waning Crescent29Mon
30Tue12:254.91:283.77:520.16:591.35:197:05New Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415379)

Common Questions About Joice Island, Suisun Slough, CA Tides

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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 76% 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 Waxing Gibbous (76% 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