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 4h 53m 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 - Jun 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:273.512:162.57:031.16:140.85:458:24Waxing Gibbous1Sat
2Sun12:553.61:232.48:020.86:511.05:448:25Waxing Gibbous2Sun
3Mon1:183.82:232.48:570.57:291.25:448:25Waxing Gibbous3Mon
4Tue1:403.93:212.49:490.28:111.45:448:26Waxing Gibbous4Tue
5Wed2:094.24:182.410:38-0.19:011.55:448:26Full Moon5Wed
6Thu2:454.35:172.511:25-0.49:571.65:438:27Full Moon6Thu
7Fri3:274.56:142.612:12-0.65:438:28Full Moon7Fri
8Sat4:144.57:082.812:57-0.75:438:28Waning Gibbous8Sat
9Sun5:054.48:003.01:43-0.75:438:29Waning Gibbous9Sun
10Mon6:014.18:493.212:591.72:30-0.65:438:29Waning Gibbous10Mon
11Tue7:033.89:383.42:071.63:18-0.45:438:30Third Quarter11Tue
12Wed8:163.410:273.63:201.54:07-0.25:438:30Third Quarter12Wed
13Thu9:413.011:153.94:361.34:550.15:438:30Third Quarter13Thu
14Fri11:072.85:511.15:430.35:438:31Third Quarter14Fri
15Sat12:014.112:252.67:020.76:300.65:438:31Waning Crescent15Sat
16Sun12:434.21:342.58:060.47:150.95:438:32Waning Crescent16Sun
17Mon1:234.32:372.59:040.18:001.15:438:32Waning Crescent17Mon
18Tue1:584.43:362.69:56-0.28:441.45:438:32Waning Crescent18Tue
19Wed2:314.44:332.610:42-0.49:291.65:438:32New Moon19Wed
20Thu3:034.45:282.711:25-0.510:141.85:438:33New Moon20Thu
21Fri3:354.36:192.912:04-0.55:448:33New Moon21Fri
22Sat4:084.37:043.012:40-0.55:448:33New Moon22Sat
23Sun4:454.17:463.11:13-0.45:448:33Waxing Crescent23Sun
24Mon5:254.08:243.212:311.91:44-0.35:458:33Waxing Crescent24Mon
25Tue6:083.89:023.31:201.92:14-0.15:458:33Waxing Crescent25Tue
26Wed6:553.59:383.42:121.82:430.15:458:34Waxing Crescent26Wed
27Thu7:483.210:133.53:111.83:140.35:468:34First Quarter27Thu
28Fri8:512.910:463.64:161.63:490.55:468:34First Quarter28Fri
29Sat10:132.611:173.75:251.54:270.75:468:34First Quarter29Sat
30Sun11:432.411:473.96:341.25:071.05:478:33First Quarter30Sun
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 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