Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 11:45 pm (1.7 ft)
Next high tide : in 3h 54m at 6:26 pm (3.2 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:56 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:393.26:283.71:150.21:221.57:234:57Waning Gibbous1Wed
2Thu8:143.47:343.31:520.32:311.57:234:58Third Quarter2Thu
3Fri8:543.68:563.02:330.53:511.37:234:59Third Quarter3Fri
4Sat9:383.910:262.73:170.75:101.07:235:00Third Quarter4Sat
5Sun10:264.111:492.64:041.06:250.67:235:01Waning Crescent5Sun
6Mon11:154.34:541.27:310.37:235:01Waning Crescent6Mon
7Tue1:012.512:044.55:491.58:30-0.17:235:02Waning Crescent7Tue
8Wed2:062.612:524.66:501.69:23-0.37:235:03Waning Crescent8Wed
9Thu3:062.71:404.67:571.810:12-0.57:235:04New Moon9Thu
10Fri4:012.82:294.59:021.810:56-0.57:235:05New Moon10Fri
11Sat4:533.03:194.310:021.811:38-0.47:225:06New Moon11Sat
12Sun5:403.14:104.110:581.87:225:07Waxing Crescent12Sun
13Mon6:243.35:043.912:17-0.311:53 AM1.77:225:08Waxing Crescent13Mon
14Tue7:053.56:033.612:55-0.112:501.77:225:09Waxing Crescent14Tue
15Wed7:463.67:093.31:320.21:521.67:215:10Waxing Crescent15Wed
16Thu8:273.78:233.02:090.53:011.57:215:11First Quarter16Thu
17Fri9:103.89:422.82:470.84:141.37:215:12First Quarter17Fri
18Sat9:543.910:582.63:271.05:251.07:205:13First Quarter18Sat
19Sun10:384.04:111.36:300.77:205:14First Quarter19Sun
20Mon12:082.611:20 AM4.14:581.57:270.57:195:16Waxing Gibbous20Mon
21Tue1:102.712:004.25:481.78:150.27:195:17Waxing Gibbous21Tue
22Wed2:042.812:374.26:401.88:580.17:185:18Waxing Gibbous22Wed
23Thu2:522.91:134.27:321.89:360.17:185:19Waxing Gibbous23Thu
24Fri3:352.91:484.38:221.810:100.17:175:20Full Moon24Fri
25Sat4:133.02:264.39:101.810:420.17:165:21Full Moon25Sat
26Sun4:453.13:064.39:541.711:110.27:165:22Full Moon26Sun
27Mon5:123.13:504.310:371.611:390.27:155:23Full Moon27Mon
28Tue5:373.34:374.211:211.47:145:24Waning Gibbous28Tue
29Wed6:023.45:284.012:070.312:091.37:135:26Waning Gibbous29Wed
30Thu6:313.66:253.712:370.51:051.37:135:27Waning Gibbous30Thu
31Fri7:083.87:333.31:110.62:151.27:125:28Third Quarter31Fri
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 9:05 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 3% 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 New Moon (3% 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