Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 18m at 1:29 pm (-0.1 ft)
Next high tide : 7:51 pm (3.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jun 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:014.17:102.712:40-0.35:458:23New Moon1Sun
2Mon4:354.17:532.81:14-0.35:448:24Waxing Crescent2Mon
3Tue5:164.18:342.912:211.81:47-0.35:448:25Waxing Crescent3Tue
4Wed6:023.99:123.01:111.82:22-0.25:448:25Waxing Crescent4Wed
5Thu6:533.79:503.12:061.73:00-0.15:448:26Waxing Crescent5Thu
6Fri7:513.510:283.33:071.63:410.05:438:26First Quarter6Fri
7Sat8:593.211:063.54:151.54:260.25:438:27First Quarter7Sat
8Sun10:222.911:443.75:271.25:110.45:438:28First Quarter8Sun
9Mon11:492.76:380.95:560.75:438:28Waxing Gibbous9Mon
10Tue12:213.91:072.67:470.56:420.95:438:29Waxing Gibbous10Tue
11Wed12:594.22:162.58:510.17:291.25:438:29Waxing Gibbous11Wed
12Thu1:384.43:222.59:50-0.28:201.45:438:30Waxing Gibbous12Thu
13Fri2:194.54:282.510:45-0.59:181.65:438:30Full Moon13Fri
14Sat3:004.65:322.611:36-0.710:201.85:438:30Full Moon14Sat
15Sun3:444.56:332.812:24-0.85:438:31Full Moon15Sun
16Mon4:304.37:283.01:09-0.85:438:31Waning Gibbous16Mon
17Tue5:194.18:163.212:201.91:53-0.75:438:32Waning Gibbous17Tue
18Wed6:123.89:023.41:201.92:36-0.55:438:32Waning Gibbous18Wed
19Thu7:123.59:463.52:231.93:18-0.35:438:32Third Quarter19Thu
20Fri8:243.110:303.73:311.84:000.05:438:32Third Quarter20Fri
21Sat9:462.811:133.84:431.64:420.35:438:33Third Quarter21Sat
22Sun11:082.611:544.05:541.35:240.65:448:33Third Quarter22Sun
23Mon12:242.57:011.06:040.95:448:33Waning Crescent23Mon
24Tue12:334.11:322.48:030.66:441.15:448:33Waning Crescent24Tue
25Wed1:084.22:352.48:580.37:251.45:448:33Waning Crescent25Wed
26Thu1:404.23:332.59:460.08:081.65:458:33Waning Crescent26Thu
27Fri2:084.24:282.510:30-0.18:541.85:458:33New Moon27Fri
28Sat2:354.35:192.611:09-0.29:431.95:468:33New Moon28Sat
29Sun3:044.36:052.811:45-0.310:311.95:468:33New Moon29Sun
30Mon3:374.36:452.912:17-0.35:468:33New Moon30Mon
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 4:40 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 87% 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 Gibbous (87% 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