38.1450’ N, 121.6920’ W

Rio Vista, CA

60°
H -°
L 54°
WSW
12mph
Low tide
6:22 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, September 5, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 6h 30m at 6:22 am (0.5 ft)
Next high tide : 12:24 pm (2.7 ft)
Sunset today : 7:31 pm
Sunrise tomorrow : 6:39 am
Moon phase : Third Quarter (45% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1901

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:362.711:57 AM4.46:021.18:010.07:234:57Waxing Gibbous1Tue
2Wed1:382.812:454.57:001.38:53-0.27:234:58Waxing Gibbous2Wed
3Thu2:352.91:304.57:581.49:41-0.37:234:59Full Moon3Thu
4Fri3:273.02:154.48:531.510:25-0.37:235:00Full Moon4Fri
5Sat4:173.12:594.39:461.511:05-0.37:235:00Full Moon5Sat
6Sun5:033.23:444.110:361.511:42-0.17:235:01Waning Gibbous6Sun
7Mon5:473.34:313.911:251.57:235:02Waning Gibbous7Mon
8Tue6:283.45:213.712:170.012:151.57:235:03Waning Gibbous8Tue
9Wed7:093.56:173.412:500.21:091.57:235:04Waning Gibbous9Wed
10Thu7:503.67:213.11:230.52:081.47:235:05Third Quarter10Thu
11Fri8:323.78:332.91:560.73:141.37:235:06Third Quarter11Fri
12Sat9:173.79:492.72:340.94:221.27:235:07Third Quarter12Sat
13Sun10:033.811:012.63:171.15:291.07:225:08Third Quarter13Sun
14Mon10:483.94:061.36:290.77:225:09Third Quarter14Mon
15Tue12:062.711:30 AM3.94:581.57:220.57:225:10Waning Crescent15Tue
16Wed1:022.712:084.05:511.68:090.47:215:11Waning Crescent16Wed
17Thu1:512.812:424.16:441.68:510.27:215:12Waning Crescent17Thu
18Fri2:342.91:174.17:361.69:300.27:215:13New Moon18Fri
19Sat3:123.01:554.28:261.610:060.17:205:14New Moon19Sat
20Sun3:473.12:374.39:161.510:410.17:205:15New Moon20Sun
21Mon4:203.23:224.310:041.411:160.27:195:16New Moon21Mon
22Tue4:533.44:114.210:541.311:500.27:195:18Waxing Crescent22Tue
23Wed5:293.65:054.011:461.27:185:19Waxing Crescent23Wed
24Thu6:083.86:053.712:260.312:451.17:175:20Waxing Crescent24Thu
25Fri6:524.07:153.31:060.51:531.17:175:21First Quarter25Fri
26Sat7:424.18:363.01:500.73:101.07:165:22First Quarter26Sat
27Sun8:384.210:012.92:410.94:270.97:155:23First Quarter27Sun
28Mon9:384.311:192.83:401.15:400.67:155:24First Quarter28Mon
29Tue10:404.34:441.36:450.47:145:25Waxing Gibbous29Tue
30Wed12:272.911:40 AM4.35:491.47:420.27:135:26Waxing Gibbous30Wed
31Thu1:253.112:344.36:521.58:320.07:125:28Waxing Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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Is this week a spring tide or neap tide in Rio Vista, CA?

Rio Vista, CA is currently in a neap phase. Tonight's moon is 45% 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 minimum.

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 Third Quarter (45% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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