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 5h 56m 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 - Mar 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:543.64:011.96:270.66:376:00Third Quarter1Sat
2Sun12:253.011:06 AM3.65:111.97:140.56:356:01Waning Crescent2Sun
3Mon1:103.112:053.66:151.87:560.56:346:02Waning Crescent3Mon
4Tue1:473.212:553.77:121.68:340.56:336:03Waning Crescent4Tue
5Wed2:183.31:403.88:031.49:080.66:316:04Waning Crescent5Wed
6Thu2:443.32:243.88:511.29:410.66:306:05New Moon6Thu
7Fri3:073.53:093.89:371.010:110.76:286:06New Moon7Fri
8Sat3:313.73:583.710:240.810:420.86:276:07New Moon8Sat
9Sun5:004.05:513.512:120.67:257:08Waxing Crescent9Sun
10Mon5:354.26:503.212:140.91:060.57:247:09Waxing Crescent10Mon
11Tue6:164.37:583.012:501.12:060.57:227:10Waxing Crescent11Tue
12Wed7:024.49:152.81:321.33:150.57:217:11First Quarter12Wed
13Thu7:554.310:342.82:251.54:300.57:197:12First Quarter13Thu
14Fri8:574.111:472.93:311.65:410.47:187:13First Quarter14Fri
15Sat10:143.94:491.76:460.37:167:14First Quarter15Sat
16Sun12:503.111:38 AM3.76:081.67:420.27:157:15Waxing Gibbous16Sun
17Mon1:423.312:523.77:191.48:320.27:137:16Waxing Gibbous17Mon
18Tue2:273.51:543.68:221.29:160.37:127:17Waxing Gibbous18Tue
19Wed3:063.72:473.69:191.09:550.47:107:18Waxing Gibbous19Wed
20Thu3:413.83:363.510:100.810:310.67:087:19Full Moon20Thu
21Fri4:133.84:253.410:580.611:020.87:077:20Full Moon21Fri
22Sat4:423.85:143.311:430.511:301.07:057:20Full Moon22Sat
23Sun5:083.96:063.212:270.47:047:21Waning Gibbous23Sun
24Mon5:323.97:003.01:120.47:027:22Waning Gibbous24Mon
25Tue5:563.97:572.912:221.31:580.37:017:23Waning Gibbous25Tue
26Wed6:253.98:572.912:551.52:470.46:597:24Waning Gibbous26Wed
27Thu6:593.89:592.81:361.63:420.46:587:25Waning Gibbous27Thu
28Fri7:423.710:592.92:281.84:390.56:567:26Third Quarter28Fri
29Sat8:353.511:543.03:311.95:350.56:557:27Third Quarter29Sat
30Sun9:443.34:421.86:280.56:537:28Third Quarter30Sun
31Mon12:423.111:15 AM3.15:531.77:160.66:527:29Third Quarter31Mon
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