Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 5:28 pm (0.9 ft)
Next high tide : in 55m at 11:48 am (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:423.64:204.110:581.111:460.27:115:29Waxing Crescent1Sat
2Sun5:263.85:173.911:541.17:105:30Waxing Crescent2Sun
3Mon6:113.96:193.612:250.312:521.17:095:31Waxing Crescent3Mon
4Tue6:574.07:253.41:060.51:541.07:085:33Waxing Crescent4Tue
5Wed7:454.08:363.11:490.83:011.07:075:34First Quarter5Wed
6Thu8:374.09:493.02:371.04:100.97:065:35First Quarter6Thu
7Fri9:334.011:003.03:291.25:170.77:055:36First Quarter7Fri
8Sat10:294.04:261.46:190.67:045:37Waxing Gibbous8Sat
9Sun12:033.111:24 AM4.05:251.57:120.47:035:38Waxing Gibbous9Sun
10Mon12:573.212:144.16:211.58:000.37:025:39Waxing Gibbous10Mon
11Tue1:453.31:004.17:151.58:420.37:015:40Waxing Gibbous11Tue
12Wed2:283.41:424.18:051.59:190.36:595:42Waxing Gibbous12Wed
13Thu3:083.42:224.08:521.49:530.46:585:43Full Moon13Thu
14Fri3:433.43:004.09:361.310:230.56:575:44Full Moon14Fri
15Sat4:143.53:373.910:171.310:500.66:565:45Full Moon15Sat
16Sun4:403.54:153.810:571.211:150.76:555:46Full Moon16Sun
17Mon5:013.64:553.711:361.211:400.86:535:47Waning Gibbous17Mon
18Tue5:203.75:403.512:181.16:525:48Waning Gibbous18Tue
19Wed5:463.86:333.412:090.91:061.16:515:49Waning Gibbous19Wed
20Thu6:223.97:373.112:451.02:051.16:505:50Waning Gibbous20Thu
21Fri7:074.08:543.01:291.13:161.16:485:51Third Quarter21Fri
22Sat8:014.010:112.92:221.34:301.06:475:52Third Quarter22Sat
23Sun9:064.011:203.03:251.45:380.86:465:53Third Quarter23Sun
24Mon10:214.04:361.56:390.66:445:54Waning Crescent24Mon
25Tue12:193.111:35 AM4.05:491.57:340.46:435:55Waning Crescent25Tue
26Wed1:103.312:394.16:591.38:240.36:425:57Waning Crescent26Wed
27Thu1:573.41:384.18:031.29:100.36:405:58New Moon27Thu
28Fri2:403.62:334.19:031.09:540.36:395:59New Moon28Fri
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 2:38 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 transitional phase. Tonight's moon is 69% 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 shifting between spring and neap.

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 First Quarter (69% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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