Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide (tomorrow) : in 1h 38m at 11:43 pm (1.9 ft)
Next high tide : 4:43 am (4.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:473.41:542.88:300.88:150.86:097:58Waxing Gibbous1Sat
2Sun2:103.62:502.89:230.48:511.06:087:59Waxing Gibbous2Sun
3Mon2:333.83:462.710:140.19:281.26:078:00Full Moon3Mon
4Tue3:014.04:432.711:06-0.210:081.36:058:01Full Moon4Tue
5Wed3:364.25:442.611:57-0.410:521.46:048:01Full Moon5Wed
6Thu4:164.46:482.612:48-0.56:038:02Waning Gibbous6Thu
7Fri5:024.37:522.71:41-0.66:028:03Waning Gibbous7Fri
8Sat5:514.28:532.812:381.62:35-0.66:018:04Waning Gibbous8Sat
9Sun6:473.99:513.01:431.73:30-0.56:008:05Third Quarter9Sun
10Mon7:523.510:463.22:571.74:25-0.35:598:06Third Quarter10Mon
11Tue9:153.211:383.44:171.65:19-0.25:588:07Third Quarter11Tue
12Wed10:492.95:351.36:100.05:578:08Third Quarter12Wed
13Thu12:253.712:112.76:461.06:570.25:568:09Waning Crescent13Thu
14Fri1:073.91:202.77:510.77:410.45:568:10Waning Crescent14Fri
15Sat1:444.02:202.68:490.48:220.75:558:10Waning Crescent15Sat
16Sun2:174.13:162.69:410.19:000.95:548:11Waning Crescent16Sun
17Mon2:484.14:102.610:29-0.19:361.25:538:12New Moon17Mon
18Tue3:154.15:062.611:14-0.310:111.45:528:13New Moon18Tue
19Wed3:414.16:012.611:56-0.410:471.65:528:14New Moon19Wed
20Thu4:074.16:542.712:35-0.55:518:15New Moon20Thu
21Fri4:364.17:442.81:13-0.45:508:16Waxing Crescent21Fri
22Sat5:114.08:312.912:101.81:49-0.45:508:16Waxing Crescent22Sat
23Sun5:503.89:153.012:581.82:24-0.35:498:17Waxing Crescent23Sun
24Mon6:353.69:583.11:511.83:01-0.15:488:18Waxing Crescent24Mon
25Tue7:263.410:393.12:491.83:390.05:488:19First Quarter25Tue
26Wed8:253.111:163.23:531.74:190.25:478:20First Quarter26Wed
27Thu9:372.811:503.45:001.54:590.45:478:20First Quarter27Thu
28Fri11:032.76:071.25:400.65:468:21First Quarter28Fri
29Sat12:193.512:252.57:110.96:190.85:468:22Waxing Gibbous29Sat
30Sun12:463.71:352.58:130.66:591.05:458:22Waxing Gibbous30Sun
31Mon1:154.02:402.49:120.27:411.25:458:23Waxing Gibbous31Mon
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 2:13 am — 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 97% 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 Full Moon (97% 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