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 1h 56m 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 - Mar 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:213.73:274.09:580.810:340.46:376:00New Moon1Sat
2Sun4:023.94:223.810:510.711:140.56:366:01New Moon2Sun
3Mon4:434.05:183.611:430.711:520.76:356:02Waxing Crescent3Mon
4Tue5:244.06:173.412:370.66:336:03Waxing Crescent4Tue
5Wed6:054.07:203.312:310.91:320.76:326:04Waxing Crescent5Wed
6Thu6:504.08:253.21:131.12:320.76:306:05First Quarter6Thu
7Fri7:403.99:323.12:011.33:360.76:296:06First Quarter7Fri
8Sat8:383.710:373.22:571.54:390.66:276:07First Quarter8Sat
9Sun10:433.64:591.66:380.67:267:08First Quarter9Sun
10Mon12:363.311:49 AM3.66:021.67:310.57:247:09Waxing Gibbous10Mon
11Tue1:273.412:493.67:031.58:180.57:237:10Waxing Gibbous11Tue
12Wed2:123.51:423.67:591.39:000.67:217:11Waxing Gibbous12Wed
13Thu2:523.52:283.68:501.29:380.67:207:11Waxing Gibbous13Thu
14Fri3:273.53:113.69:381.010:110.77:187:12Full Moon14Fri
15Sat3:573.53:513.510:220.910:410.87:177:13Full Moon15Sat
16Sun4:213.64:313.511:040.811:090.97:157:14Full Moon16Sun
17Mon4:403.65:123.411:440.711:351.07:147:15Full Moon17Mon
18Tue4:583.75:553.412:230.67:127:16Waning Gibbous18Tue
19Wed5:243.96:443.312:051.01:050.67:117:17Waning Gibbous19Wed
20Thu5:594.07:383.212:391.11:510.67:097:18Waning Gibbous20Thu
21Fri6:414.08:403.11:201.22:460.67:087:19Waning Gibbous21Fri
22Sat7:314.09:473.02:101.33:500.67:067:20Third Quarter22Sat
23Sun8:293.910:543.13:091.44:580.57:057:21Third Quarter23Sun
24Mon9:403.711:573.24:211.46:030.57:037:22Third Quarter24Mon
25Tue11:063.65:381.37:030.47:017:23Waning Crescent25Tue
26Wed12:523.412:283.66:521.27:570.47:007:24Waning Crescent26Wed
27Thu1:403.51:363.68:000.98:480.46:587:25Waning Crescent27Thu
28Fri2:243.72:363.59:020.79:340.56:577:26Waning Crescent28Fri
29Sat3:053.83:323.59:590.510:180.66:557:27New Moon29Sat
30Sun3:443.94:273.410:520.311:000.76:547:28New Moon30Sun
31Mon4:224.05:223.311:430.211:390.96:527:28New Moon31Mon
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