Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 58m at 9:07 am (0.1 ft)
Next high tide : 2:57 pm (2.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:023.210:23 AM2.95:251.66:120.36:097:58First Quarter1Wed
2Thu12:453.311:46 AM2.86:311.46:560.56:087:59First Quarter2Thu
3Fri1:233.412:542.77:301.17:350.66:078:00Waxing Gibbous3Fri
4Sat1:533.51:512.78:240.88:110.86:068:00Waxing Gibbous4Sat
5Sun2:183.52:422.79:150.68:441.06:058:01Waxing Gibbous5Sun
6Mon2:363.63:322.710:020.39:171.16:038:02Full Moon6Mon
7Tue2:553.84:232.610:480.19:521.26:028:03Full Moon7Tue
8Wed3:204.05:162.611:34-0.110:321.36:018:04Full Moon8Wed
9Thu3:544.26:132.612:20-0.36:008:05Full Moon9Thu
10Fri4:344.37:122.71:07-0.45:598:06Waning Gibbous10Fri
11Sat5:204.38:102.812:061.51:57-0.55:588:07Waning Gibbous11Sat
12Sun6:114.19:082.91:021.62:50-0.45:588:08Waning Gibbous12Sun
13Mon7:093.810:053.12:081.63:45-0.35:578:09Third Quarter13Mon
14Tue8:173.510:593.33:231.54:41-0.25:568:10Third Quarter14Tue
15Wed9:443.111:503.54:431.45:35-0.15:558:10Third Quarter15Wed
16Thu11:172.96:001.16:270.15:548:11Third Quarter16Thu
17Fri12:363.712:372.87:100.87:150.35:538:12Waning Crescent17Fri
18Sat1:193.91:442.78:150.58:010.55:538:13Waning Crescent18Sat
19Sun1:574.12:452.79:130.28:440.75:528:14Waning Crescent19Sun
20Mon2:324.13:422.610:06-0.19:251.05:518:15New Moon20Mon
21Tue3:044.24:392.610:55-0.310:051.25:508:16New Moon21Tue
22Wed3:344.25:362.611:40-0.410:441.55:508:16New Moon22Wed
23Thu4:034.26:322.712:23-0.55:498:17New Moon23Thu
24Fri4:344.17:252.81:03-0.55:488:18Waxing Crescent24Fri
25Sat5:084.08:142.912:051.71:42-0.55:488:19Waxing Crescent25Sat
26Sun5:473.99:013.012:511.82:21-0.45:478:20Waxing Crescent26Sun
27Mon6:303.79:473.11:431.82:59-0.25:478:20Waxing Crescent27Mon
28Tue7:193.410:323.22:411.83:380.05:468:21First Quarter28Tue
29Wed8:173.111:143.33:461.74:180.25:468:22First Quarter29Wed
30Thu9:302.811:533.44:541.64:580.45:458:22First Quarter30Thu
31Fri10:582.66:001.45:370.65:458:23First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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

Slack tide in Rio Vista, CA is approximately 12:02 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 Waning 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