Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 12:53 am (1.7 ft)
Next high tide : in 1h 01m at 7:49 pm (3.1 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:522.65:524.01:42-0.312:351.67:326:07Waning Gibbous1Wed
2Thu8:562.76:353.82:33-0.31:271.87:336:06Waning Gibbous2Thu
3Fri9:562.87:273.53:25-0.22:301.97:346:05Third Quarter3Fri
4Sat10:523.08:353.24:18-0.13:431.97:356:04Third Quarter4Sat
5Sun10:423.19:053.04:100.03:581.76:375:03Third Quarter5Sun
6Mon11:273.310:292.94:580.15:071.46:385:02Third Quarter6Mon
7Tue12:063.55:410.26:081.16:395:01Waning Crescent7Tue
8Wed12:403.66:190.47:040.86:405:00Waning Crescent8Wed
9Thu12:342.81:083.76:520.67:540.66:414:59Waning Crescent9Thu
10Fri1:242.71:313.77:220.88:410.46:424:58Waning Crescent10Fri
11Sat2:102.61:473.87:490.99:250.26:434:58New Moon11Sat
12Sun2:562.52:023.98:151.110:080.16:444:57New Moon12Sun
13Mon3:442.52:244.18:451.210:50-0.16:454:56New Moon13Mon
14Tue4:342.42:564.29:211.411:32-0.26:464:55New Moon14Tue
15Wed5:272.43:344.310:041.56:474:54Waxing Crescent15Wed
16Thu6:232.44:194.212:17-0.210:53 AM1.56:484:54Waxing Crescent16Thu
17Fri7:202.55:104.11:05-0.211:50 AM1.66:494:53Waxing Crescent17Fri
18Sat8:162.76:093.81:57-0.212:591.66:514:52First Quarter18Sat
19Sun9:112.97:213.42:51-0.12:211.66:524:52First Quarter19Sun
20Mon10:033.18:543.13:460.03:471.46:534:51First Quarter20Mon
21Tue10:503.410:303.04:380.15:061.16:544:51First Quarter21Tue
22Wed11:343.711:472.95:280.26:170.76:554:50Waxing Gibbous22Wed
23Thu12:143.96:140.47:210.36:564:50Waxing Gibbous23Thu
24Fri12:532.812:514.26:570.68:200.06:574:49Waxing Gibbous24Fri
25Sat1:522.71:264.37:390.89:14-0.36:584:49Full Moon25Sat
26Sun2:492.62:004.48:201.010:04-0.46:594:48Full Moon26Sun
27Mon3:472.62:334.49:011.310:52-0.57:004:48Full Moon27Mon
28Tue4:462.63:064.39:431.511:37-0.67:014:48Full Moon28Tue
29Wed5:452.63:424.210:271.77:024:47Waning Gibbous29Wed
30Thu6:412.74:224.112:20-0.511:15 AM1.87:034:47Waning Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 10:21 pm — 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 Rio Vista, CA?

Rio Vista, CA is currently in a spring phase. Tonight's moon is 10% 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 maximum.

What datum are Rio Vista, 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 Rio Vista, CA?

Tide predictions for Rio Vista, 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 Rio Vista, CA?

Tide data for Rio Vista, CA is sourced from NOAA Station #9415316. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9415316.

What is the moon phase in Rio Vista, CA tonight?

Tonight the moon over Rio Vista, CA is Waxing Crescent (10% illuminated). This places Rio Vista, CA in a spring tide cycle, so tidal ranges are near their weekly maximum 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