Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 7h 51m at 11:29 am (-0.5 ft)
Next high tide : 5:37 pm (2.8 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:484.23:393.49:45-0.19:191.56:367:36New Moon1Tue
2Wed2:414.14:173.510:250.010:131.46:377:35New Moon2Wed
3Thu3:304.04:523.611:010.111:031.26:387:33New Moon3Thu
4Fri4:183.85:243.711:330.311:501.16:397:32New Moon4Fri
5Sat5:063.65:543.812:010.66:407:30Waxing Crescent5Sat
6Sun5:563.46:213.812:371.012:250.86:417:29Waxing Crescent6Sun
7Mon6:513.16:483.91:261.012:481.06:417:27Waxing Crescent7Mon
8Tue7:522.97:163.92:190.91:151.26:427:26Waxing Crescent8Tue
9Wed9:022.77:483.93:190.91:501.56:437:24First Quarter9Wed
10Thu10:182.68:303.84:250.82:371.76:447:22First Quarter10Thu
11Fri11:322.69:253.75:310.73:391.96:457:21First Quarter11Fri
12Sat12:362.86:310.54:532.06:467:19First Quarter12Sat
13Sun1:282.97:230.46:082.06:467:18Waxing Gibbous13Sun
14Mon12:003.62:103.18:080.37:131.86:477:16Waxing Gibbous14Mon
15Tue1:013.62:453.28:480.38:091.66:487:15Waxing Gibbous15Tue
16Wed1:503.73:133.39:240.38:591.46:497:13Waxing Gibbous16Wed
17Thu2:353.73:373.49:570.49:461.16:507:11Full Moon17Thu
18Fri3:183.73:593.610:280.510:320.96:517:10Full Moon18Fri
19Sat4:023.74:223.810:580.611:190.76:527:08Full Moon19Sat
20Sun4:503.54:514.011:270.76:537:07Waning Gibbous20Sun
21Mon5:433.35:264.312:090.511:59 AM0.96:537:05Waning Gibbous21Mon
22Tue6:433.06:064.41:040.512:341.06:547:04Waning Gibbous22Tue
23Wed7:552.86:524.42:060.41:161.26:557:02Waning Gibbous23Wed
24Thu9:162.67:454.33:170.42:101.56:567:00Third Quarter24Thu
25Fri10:392.68:494.04:320.33:201.76:576:59Third Quarter25Fri
26Sat11:542.810:093.85:410.24:441.76:586:57Third Quarter26Sat
27Sun12:543.06:430.16:051.66:596:56Waning Crescent27Sun
28Mon1:433.37:370.07:161.47:006:54Waning Crescent28Mon
29Tue12:483.62:253.58:240.08:191.27:006:53Waning Crescent29Tue
30Wed1:483.63:013.79:060.19:140.97:016:51Waning Crescent30Wed
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 2:33 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 100% 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 (100% 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