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 1h 24m at 2:27 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:403.22:204.29:011.810:22-0.17:115:29Full Moon1Thu
2Fri4:193.33:054.19:501.710:560.17:105:30Full Moon2Fri
3Sat4:563.43:504.010:371.611:260.27:095:31Full Moon3Sat
4Sun5:293.54:373.811:211.511:530.47:085:32Waning Gibbous4Sun
5Mon6:003.65:263.612:071.47:075:33Waning Gibbous5Mon
6Tue6:293.76:193.412:170.712:551.47:065:34Waning Gibbous6Tue
7Wed6:573.77:203.112:410.91:521.37:055:36Waning Gibbous7Wed
8Thu7:263.88:322.81:101.12:571.37:045:37Third Quarter8Thu
9Fri7:573.89:512.61:451.34:091.27:035:38Third Quarter9Fri
10Sat8:363.811:072.62:301.65:181.07:025:39Third Quarter10Sat
11Sun9:253.83:241.86:200.87:015:40Third Quarter11Sun
12Mon12:132.710:24 AM3.94:251.97:140.67:005:41Waning Crescent12Mon
13Tue1:072.811:24 AM3.95:311.98:000.46:595:42Waning Crescent13Tue
14Wed1:512.912:204.06:351.98:420.36:575:43Waning Crescent14Wed
15Thu2:283.01:124.27:351.79:200.36:565:44Waning Crescent15Thu
16Fri3:003.12:034.28:311.59:570.36:555:46New Moon16Fri
17Sat3:303.32:534.29:231.310:310.36:545:47New Moon17Sat
18Sun4:003.53:454.210:141.111:050.46:535:48New Moon18Sun
19Mon4:323.74:394.011:070.911:380.66:515:49Waxing Crescent19Mon
20Tue5:084.05:373.712:020.86:505:50Waxing Crescent20Tue
21Wed5:474.26:433.312:130.71:040.86:495:51Waxing Crescent21Wed
22Thu6:314.37:573.012:511.02:150.86:475:52First Quarter22Thu
23Fri7:204.39:192.81:351.23:320.76:465:53First Quarter23Fri
24Sat8:174.210:412.82:301.54:470.66:455:54First Quarter24Sat
25Sun9:234.111:532.93:361.75:560.46:435:55First Quarter25Sun
26Mon10:344.04:501.86:550.26:425:56Waxing Gibbous26Mon
27Tue12:523.111:42 AM4.06:021.87:460.16:415:57Waxing Gibbous27Tue
28Wed1:413.312:413.97:061.78:300.16:395:58Waxing Gibbous28Wed
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 99% 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 Full Moon (99% 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