Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 05m at 7:36 am (0.4 ft)
Next high tide : 1:00 pm (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : Waxing Gibbous (77% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2012

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:083.14:474.011:160.97:036:49Full Moon1Mon
2Tue5:593.05:144.012:180.411:46 AM1.17:046:47Waning Gibbous2Tue
3Wed6:522.95:434.01:010.412:171.27:046:46Waning Gibbous3Wed
4Thu7:492.86:163.91:460.412:541.37:056:44Waning Gibbous4Thu
5Fri8:492.86:553.82:340.41:391.57:066:43Waning Gibbous5Fri
6Sat9:502.87:423.63:260.52:341.67:076:41Third Quarter6Sat
7Sun10:492.88:403.44:220.53:401.77:086:40Third Quarter7Sun
8Mon11:442.99:563.25:170.64:511.67:096:38Third Quarter8Mon
9Tue12:323.16:080.65:581.57:106:37Third Quarter9Tue
10Wed1:113.26:540.66:591.27:116:35Waning Crescent10Wed
11Thu12:293.11:433.37:350.67:551.07:126:34Waning Crescent11Thu
12Fri1:263.22:093.58:130.78:480.77:136:32Waning Crescent12Fri
13Sat2:163.22:333.68:490.79:390.47:146:31Waning Crescent13Sat
14Sun3:053.22:583.99:240.810:290.27:156:29New Moon14Sun
15Mon3:553.13:294.110:000.911:190.07:166:28New Moon15Mon
16Tue4:473.04:054.210:391.07:176:27New Moon16Tue
17Wed5:432.94:464.312:10-0.111:22 AM1.17:186:25Waxing Crescent17Wed
18Thu6:442.85:334.31:03-0.212:101.27:196:24Waxing Crescent18Thu
19Fri7:482.86:254.11:58-0.21:051.37:206:23Waxing Crescent19Fri
20Sat8:542.97:253.82:56-0.12:101.47:216:21First Quarter20Sat
21Sun9:593.08:403.43:55-0.13:271.47:226:20First Quarter21Sun
22Mon11:013.210:113.24:540.04:471.37:236:19First Quarter22Mon
23Tue11:573.411:373.15:500.06:021.17:246:17First Quarter23Tue
24Wed12:453.66:410.17:090.97:256:16Waxing Gibbous24Wed
25Thu12:473.01:283.87:280.28:090.67:266:15Waxing Gibbous25Thu
26Fri1:463.02:053.98:110.39:030.37:276:14Waxing Gibbous26Fri
27Sat2:373.02:394.08:510.59:530.17:286:12Waxing Gibbous27Sat
28Sun3:262.93:094.09:280.710:380.07:296:11Full Moon28Sun
29Mon4:152.83:374.010:030.911:22-0.17:306:10Full Moon29Mon
30Tue5:042.84:044.010:361.17:316:09Full Moon30Tue
31Wed5:542.74:304.012:02-0.111:09 AM1.27:326:08Full Moon31Wed
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 10:18 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 transitional phase. Tonight's moon is 77% 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 Waxing Gibbous (77% 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