Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 7h 02m at 10:10 am (-0.4 ft)
Next high tide : 4:01 pm (2.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:223.212:333.26:571.57:590.66:507:30Waning Crescent1Tue
2Wed1:553.31:343.27:551.28:380.76:497:31Waning Crescent2Wed
3Thu2:223.42:273.28:491.09:150.86:477:32Waning Crescent3Thu
4Fri2:463.63:183.29:400.79:500.96:467:33New Moon4Fri
5Sat3:113.84:103.110:310.410:251.06:447:34New Moon5Sat
6Sun3:414.05:053.011:220.211:011.26:437:34New Moon6Sun
7Mon4:164.26:052.912:140.06:417:35Waxing Crescent7Mon
8Tue4:574.47:102.81:08-0.16:407:36Waxing Crescent8Tue
9Wed5:424.48:172.812:251.42:05-0.16:387:37Waxing Crescent9Wed
10Thu6:324.29:252.81:181.53:06-0.16:377:38Waxing Crescent10Thu
11Fri7:294.010:293.02:211.64:080.06:357:39First Quarter11Fri
12Sat8:373.611:293.23:351.65:100.06:347:40First Quarter12Sat
13Sun10:013.34:531.56:070.16:327:41First Quarter13Sun
14Mon12:233.411:28 AM3.16:071.36:590.26:317:42Waxing Gibbous14Mon
15Tue1:093.612:433.17:151.07:460.36:297:43Waxing Gibbous15Tue
16Wed1:503.81:453.08:150.78:280.56:287:44Waxing Gibbous16Wed
17Thu2:263.92:393.09:100.59:070.76:277:45Waxing Gibbous17Thu
18Fri2:583.93:312.910:010.29:410.96:257:46Full Moon18Fri
19Sat3:273.94:222.810:480.010:121.16:247:47Full Moon19Sat
20Sun3:523.95:142.811:32-0.110:411.36:237:47Full Moon20Sun
21Mon4:154.06:072.712:14-0.26:217:48Full Moon21Mon
22Tue4:374.07:002.812:55-0.26:207:49Waning Gibbous22Tue
23Wed5:044.07:532.81:36-0.26:197:50Waning Gibbous23Wed
24Thu5:373.98:442.812:261.72:17-0.16:177:51Waning Gibbous24Thu
25Fri6:163.79:342.91:141.73:000.06:167:52Waning Gibbous25Fri
26Sat7:023.510:233.02:081.83:460.16:157:53Third Quarter26Sat
27Sun7:553.311:093.13:111.84:330.26:147:54Third Quarter27Sun
28Mon9:003.011:503.24:191.75:200.36:127:55Third Quarter28Mon
29Tue10:252.85:281.56:060.56:117:56Third Quarter29Tue
30Wed12:253.311:57 AM2.76:341.26:490.66:107:57Waning 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 1:05 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 96% 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 Waxing Gibbous (96% 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