Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, July 3, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:13 am (1.7 ft)
Next high tide : in 5h 31m at 7:51 pm (3.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (87% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:523.97:303.012:131.11:281.06:376:00Waxing Crescent1Fri
2Sat6:233.98:362.812:471.32:261.06:366:01Waxing Crescent2Sat
3Sun7:013.99:462.81:301.53:311.06:356:02First Quarter3Sun
4Mon7:473.810:522.82:231.74:370.96:336:03First Quarter4Mon
5Tue8:453.711:492.93:261.85:370.86:326:04First Quarter5Tue
6Wed9:553.74:331.86:300.76:306:05First Quarter6Wed
7Thu12:363.011:08 AM3.75:391.77:170.76:296:06Waxing Gibbous7Thu
8Fri1:153.112:113.86:401.57:590.66:276:07Waxing Gibbous8Fri
9Sat1:473.21:063.87:371.38:370.76:266:08Waxing Gibbous9Sat
10Sun3:163.32:583.99:311.010:140.77:247:09Full Moon10Sun
11Mon3:433.53:503.810:230.810:480.87:237:10Full Moon11Mon
12Tue4:123.84:433.711:150.511:230.97:217:10Full Moon12Tue
13Wed4:454.05:393.512:080.47:207:11Waning Gibbous13Wed
14Thu5:224.26:393.31:030.37:187:12Waning Gibbous14Thu
15Fri6:044.37:453.112:361.12:020.27:177:13Waning Gibbous15Fri
16Sat6:514.38:543.01:191.33:050.37:157:14Waning Gibbous16Sat
17Sun7:444.110:063.02:111.44:120.37:147:15Third Quarter17Sun
18Mon8:473.911:163.03:161.65:180.27:127:16Third Quarter18Mon
19Tue10:053.74:321.76:190.27:117:17Third Quarter19Tue
20Wed12:193.211:30 AM3.55:491.67:150.27:097:18Waning Crescent20Wed
21Thu1:123.412:433.57:001.58:040.27:087:19Waning Crescent21Thu
22Fri1:573.61:443.58:021.38:490.37:067:20Waning Crescent22Fri
23Sat2:373.72:363.48:581.09:290.47:057:21Waning Crescent23Sat
24Sun3:123.83:243.49:480.810:050.67:037:22New Moon24Sun
25Mon3:433.84:103.310:340.710:370.87:017:23New Moon25Mon
26Tue4:123.94:573.211:170.511:071.07:007:24New Moon26Tue
27Wed4:373.95:463.111:590.411:341.16:587:25New Moon27Wed
28Thu5:013.96:363.012:390.46:577:26Waxing Crescent28Thu
29Fri5:254.07:292.912:031.31:200.46:557:27Waxing Crescent29Fri
30Sat5:534.08:242.912:371.42:020.46:547:28Waxing Crescent30Sat
31Sun6:283.99:212.81:161.52:480.56:527:28Waxing Crescent31Sun
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 10:32 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 87% 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 Waning Gibbous (87% 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