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 36m 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 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:313.710:063.02:241.44:170.96:385:59Third Quarter1Thu
2Fri9:293.611:103.13:191.55:190.86:366:00Third Quarter2Fri
3Sat10:313.64:201.66:160.76:356:01Third Quarter3Sat
4Sun12:073.111:29 AM3.65:231.67:060.66:336:03Waning Crescent4Sun
5Mon12:563.212:203.66:221.67:510.56:326:04Waning Crescent5Mon
6Tue1:383.31:043.77:161.58:320.56:306:05Waning Crescent6Tue
7Wed2:153.31:443.78:061.49:090.66:296:05Waning Crescent7Wed
8Thu2:463.42:233.78:521.29:430.66:276:06New Moon8Thu
9Fri3:133.43:033.79:361.110:150.76:266:07New Moon9Fri
10Sat3:383.63:473.710:190.910:480.76:246:08New Moon10Sat
11Sun5:053.75:343.712:030.87:237:09Waxing Crescent11Sun
12Mon5:373.96:283.512:210.812:490.77:217:10Waxing Crescent12Mon
13Tue6:164.17:293.412:580.81:430.67:207:11Waxing Crescent13Tue
14Wed7:014.18:383.21:401.02:450.67:187:12Waxing Crescent14Wed
15Thu7:534.19:523.12:301.13:560.67:177:13First Quarter15Thu
16Fri8:534.011:063.13:301.35:080.67:157:14First Quarter16Fri
17Sat10:033.94:401.36:170.57:147:15First Quarter17Sat
18Sun12:143.211:21 AM3.85:521.37:190.47:127:16Waxing Gibbous18Sun
19Mon1:133.312:333.87:011.28:140.37:117:17Waxing Gibbous19Mon
20Tue2:053.51:363.78:051.19:040.37:097:18Waxing Gibbous20Tue
21Wed2:503.62:323.79:040.99:490.37:087:19Waxing Gibbous21Wed
22Thu3:313.73:233.79:580.710:300.47:067:20Full Moon22Thu
23Fri4:093.74:133.610:480.611:080.67:057:21Full Moon23Fri
24Sat4:443.85:033.511:350.511:420.87:037:22Full Moon24Sat
25Sun5:173.85:533.412:210.47:027:23Full Moon25Sun
26Mon5:493.86:463.312:140.91:060.47:007:24Waning Gibbous26Mon
27Tue6:193.77:413.212:451.11:510.46:597:25Waning Gibbous27Tue
28Wed6:503.78:393.11:181.22:400.46:577:26Waning Gibbous28Wed
29Thu7:253.69:393.11:571.43:330.56:557:26Waning Gibbous29Thu
30Fri8:083.510:403.12:461.54:300.56:547:27Third Quarter30Fri
31Sat9:023.311:383.13:451.65:280.66:527:28Third Quarter31Sat
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