Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 06m at 8:34 am (0.1 ft)
Next high tide : 2:06 pm (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2011

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:323.51:073.87:231.58:290.26:385:59Waning Crescent1Tue
2Wed2:123.61:543.88:161.39:070.36:366:00New Moon2Wed
3Thu2:483.72:383.79:041.29:420.56:356:01New Moon3Thu
4Fri3:213.73:223.69:481.110:130.66:346:02New Moon4Fri
5Sat3:513.74:063.510:301.010:410.86:326:03New Moon5Sat
6Sun4:183.84:513.411:100.911:070.96:316:04New Moon6Sun
7Mon4:413.95:383.211:500.911:341.16:296:05Waxing Crescent7Mon
8Tue5:043.96:303.112:320.96:286:06Waxing Crescent8Tue
9Wed5:324.07:272.912:061.21:180.96:266:07Waxing Crescent9Wed
10Thu6:064.08:312.812:441.42:120.96:256:08Waxing Crescent10Thu
11Fri6:483.99:382.81:301.53:160.96:236:09First Quarter11Fri
12Sat7:403.810:412.82:261.64:220.96:226:10First Quarter12Sat
13Sun9:423.74:311.76:240.87:207:11First Quarter13Sun
14Mon12:362.910:57 AM3.75:401.67:190.77:197:12First Quarter14Mon
15Tue1:223.112:143.76:471.58:080.77:177:13Waxing Gibbous15Tue
16Wed2:003.21:213.87:511.28:530.67:167:14Waxing Gibbous16Wed
17Thu2:353.42:203.88:511.09:360.77:147:15Waxing Gibbous17Thu
18Fri3:083.63:163.89:480.710:150.77:137:16Full Moon18Fri
19Sat3:423.84:113.710:430.410:540.87:117:17Full Moon19Sat
20Sun4:174.05:083.511:370.211:320.97:107:18Full Moon20Sun
21Mon4:554.16:073.412:310.17:087:19Waning Gibbous21Mon
22Tue5:354.27:093.212:111.11:270.17:077:20Waning Gibbous22Tue
23Wed6:194.28:143.112:531.22:240.17:057:21Waning Gibbous23Wed
24Thu7:084.19:213.01:411.43:250.17:037:22Third Quarter24Thu
25Fri8:033.810:273.12:381.54:270.27:027:23Third Quarter25Fri
26Sat9:123.611:303.23:451.65:270.27:007:24Third Quarter26Sat
27Sun10:333.44:591.66:240.26:597:24Third Quarter27Sun
28Mon12:253.411:52 AM3.36:101.57:160.26:577:25Waning Crescent28Mon
29Tue1:143.512:593.37:151.38:020.36:567:26Waning Crescent29Tue
30Wed1:563.71:563.38:131.18:450.46:547:27Waning Crescent30Wed
31Thu2:333.82:463.29:050.99:220.66:537:28Waning Crescent31Thu
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 11:20 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 85% 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 (85% 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