Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 10:51 am (-0.5 ft)
Next high tide : in 2h 38m at 2:27 am (4.3 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 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:233.51:323.98:031.59:100.26:385:59Waxing Gibbous1Thu
2Fri3:003.52:193.98:541.49:450.36:376:00Full Moon2Fri
3Sat3:343.63:043.89:411.210:160.56:356:01Full Moon3Sat
4Sun4:043.63:493.710:251.110:430.76:346:02Full Moon4Sun
5Mon4:313.74:353.511:071.011:060.96:326:03Full Moon5Mon
6Tue4:553.75:243.311:490.911:281.06:316:04Waning Gibbous6Tue
7Wed5:153.86:163.112:330.96:296:05Waning Gibbous7Wed
8Thu5:363.97:152.91:220.96:286:06Waning Gibbous8Thu
9Fri6:033.98:212.812:261.42:190.96:266:07Waning Gibbous9Fri
10Sat6:383.99:312.71:061.63:230.96:256:08Third Quarter10Sat
11Sun8:233.811:392.71:571.75:290.87:237:09Third Quarter11Sun
12Mon9:193.73:591.96:300.77:227:10Third Quarter12Mon
13Tue12:382.810:30 AM3.65:101.97:240.67:207:11Third Quarter13Tue
14Wed1:263.011:53 AM3.66:211.88:130.57:197:12Waning Crescent14Wed
15Thu2:053.11:063.77:271.68:560.57:177:13Waning Crescent15Thu
16Fri2:393.22:063.88:271.39:370.57:167:14Waning Crescent16Fri
17Sat3:093.43:013.89:241.010:140.67:147:15New Moon17Sat
18Sun3:383.63:543.710:180.710:510.77:137:16New Moon18Sun
19Mon4:103.84:493.611:120.511:260.87:117:17New Moon19Mon
20Tue4:444.15:473.412:060.37:107:18Waxing Crescent20Tue
21Wed5:224.26:503.212:021.01:020.27:087:19Waxing Crescent21Wed
22Thu6:034.37:573.012:401.12:010.27:077:20Waxing Crescent22Thu
23Fri6:484.39:102.91:221.33:060.27:057:21Waxing Crescent23Fri
24Sat7:394.110:232.92:141.54:130.27:037:22First Quarter24Sat
25Sun8:383.911:333.03:181.75:200.27:027:23First Quarter25Sun
26Mon9:523.64:341.86:210.27:007:24First Quarter26Mon
27Tue12:333.211:15 AM3.55:501.77:160.26:597:24Waxing Gibbous27Tue
28Wed1:233.412:303.46:591.58:040.26:577:25Waxing Gibbous28Wed
29Thu2:063.61:323.48:011.38:470.36:567:26Waxing Gibbous29Thu
30Fri2:443.72:263.38:551.09:250.56:547:27Waxing Gibbous30Fri
31Sat3:173.73:143.39:440.89:590.76:537:28Full Moon31Sat
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 6:39 am — 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