Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 11:45 pm (1.7 ft)
Next high tide : in 6h 08m at 6:26 pm (3.2 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 5:56 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 1986

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:174.27:443.112:361.02:080.86:385:59Third Quarter1Sat
2Sun7:054.29:062.81:191.23:250.76:366:00Third Quarter2Sun
3Mon8:014.210:292.82:121.54:420.66:356:01Third Quarter3Mon
4Tue9:104.111:432.93:201.75:520.46:346:02Third Quarter4Tue
5Wed10:294.04:411.86:530.26:326:03Waning Crescent5Wed
6Thu12:443.111:45 AM3.96:001.77:460.16:316:04Waning Crescent6Thu
7Fri1:353.312:493.97:101.68:330.06:296:05Waning Crescent7Fri
8Sat2:183.41:453.98:121.49:150.16:286:06New Moon8Sat
9Sun2:583.62:363.89:061.39:530.26:266:07New Moon9Sun
10Mon3:333.63:243.79:561.110:280.46:256:08New Moon10Mon
11Tue4:063.74:133.610:421.011:000.66:236:09New Moon11Tue
12Wed4:373.85:033.411:270.911:280.86:226:10Waxing Crescent12Wed
13Thu5:063.85:573.212:120.86:206:11Waxing Crescent13Thu
14Fri5:343.96:563.01:000.86:196:12Waxing Crescent14Fri
15Sat6:033.98:002.912:251.31:530.76:176:13Waxing Crescent15Sat
16Sun6:353.99:092.81:011.52:540.76:166:14First Quarter16Sun
17Mon7:153.810:182.81:481.73:590.76:146:15First Quarter17Mon
18Tue8:053.611:212.92:461.85:020.76:136:16First Quarter18Tue
19Wed9:093.53:551.95:590.66:116:17First Quarter19Wed
20Thu12:143.010:26 AM3.45:041.86:480.56:106:18Waxing Gibbous20Thu
21Fri12:583.111:36 AM3.46:081.77:310.56:086:19Waxing Gibbous21Fri
22Sat1:343.212:333.57:041.58:090.66:066:20Waxing Gibbous22Sat
23Sun2:043.21:233.67:561.38:440.66:056:21Waxing Gibbous23Sun
24Mon2:283.32:113.68:441.09:170.76:036:22Full Moon24Mon
25Tue2:493.42:593.69:310.79:470.86:026:23Full Moon25Tue
26Wed3:113.73:493.510:190.510:180.96:006:24Full Moon26Wed
27Thu3:383.94:433.311:080.310:501.05:596:25Waning Gibbous27Thu
28Fri4:124.15:433.212:010.25:576:25Waning Gibbous28Fri
29Sat4:524.26:493.012:580.15:566:26Waning Gibbous29Sat
30Sun5:384.38:002.812:091.32:030.15:546:27Waning Gibbous30Sun
31Mon6:294.19:142.81:011.53:110.15:536:28Third Quarter31Mon
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 9:05 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 spring phase. Tonight's moon is 3% 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 New Moon (3% 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