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 57m 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 - Dec 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:593.510:483.04:390.35:320.97:044:47Third Quarter1Tue
2Wed11:433.85:300.46:390.57:054:46Waning Crescent2Wed
3Thu12:012.912:244.06:190.57:400.27:064:46Waning Crescent3Thu
4Fri1:042.91:034.27:060.78:37-0.17:074:46Waning Crescent4Fri
5Sat2:032.81:404.37:530.99:31-0.47:084:46New Moon5Sat
6Sun3:002.82:174.48:391.110:21-0.57:094:46New Moon6Sun
7Mon3:572.82:544.39:251.311:08-0.67:104:46New Moon7Mon
8Tue4:542.83:324.210:121.511:54-0.67:114:46Waxing Crescent8Tue
9Wed5:512.94:124.111:001.67:114:46Waxing Crescent9Wed
10Thu6:443.04:573.912:38-0.511:50 AM1.77:124:46Waxing Crescent10Thu
11Fri7:363.15:473.61:21-0.412:461.87:134:47Waxing Crescent11Fri
12Sat8:263.26:493.32:05-0.21:501.87:144:47First Quarter12Sat
13Sun9:153.48:083.02:490.03:011.77:144:47First Quarter13Sun
14Mon10:023.59:342.83:340.24:131.57:154:47First Quarter14Mon
15Tue10:473.610:512.64:190.45:221.37:164:48First Quarter15Tue
16Wed11:283.811:572.65:020.66:251.07:164:48Waxing Gibbous16Wed
17Thu12:043.95:430.87:210.77:174:48Waxing Gibbous17Thu
18Fri12:562.612:364.06:241.08:110.47:184:49Waxing Gibbous18Fri
19Sat1:492.61:024.07:031.28:570.37:184:49Waxing Gibbous19Sat
20Sun2:392.61:264.17:431.39:390.17:194:50Full Moon20Sun
21Mon3:262.61:534.28:241.410:180.07:194:50Full Moon21Mon
22Tue4:122.62:254.39:071.510:55-0.17:204:51Full Moon22Tue
23Wed4:562.73:044.49:531.611:32-0.17:204:51Full Moon23Wed
24Thu5:392.83:494.410:401.57:214:52Waning Gibbous24Thu
25Fri6:202.94:384.312:09-0.111:32 AM1.57:214:52Waning Gibbous25Fri
26Sat7:033.05:334.112:48-0.112:291.57:214:53Waning Gibbous26Sat
27Sun7:483.26:353.81:300.01:341.47:224:54Waning Gibbous27Sun
28Mon8:363.47:493.42:160.22:491.37:224:54Third Quarter28Mon
29Tue9:273.69:153.13:060.34:061.17:224:55Third Quarter29Tue
30Wed10:183.910:382.93:580.55:200.97:224:56Third Quarter30Wed
31Thu11:074.111:512.84:500.76:280.57:234:57Waning 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