Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 2:45 pm (-0.3 ft)
Next high tide : in 1h 24m at 6:49 am (3.7 ft)
Sunset today : 8:32 pm
Sunrise tomorrow : 5:43 am
Moon phase : Waxing Crescent (28% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:484.07:372.912:191.21:321.06:376:00Waxing Crescent1Wed
2Thu6:274.18:522.712:591.42:371.06:356:01First Quarter2Thu
3Fri7:144.010:082.71:481.63:531.06:346:02First Quarter3Fri
4Sat8:114.011:152.82:481.75:040.86:326:03First Quarter4Sat
5Sun9:213.93:581.86:060.76:316:04First Quarter5Sun
6Mon12:102.910:39 AM3.95:111.77:010.56:296:05Waxing Gibbous6Mon
7Tue12:553.111:53 AM4.06:211.57:490.56:286:06Waxing Gibbous7Tue
8Wed1:353.312:584.07:261.28:330.56:266:07Waxing Gibbous8Wed
9Thu2:113.41:564.08:260.99:140.56:256:08Full Moon9Thu
10Fri2:473.62:513.99:230.79:530.66:236:09Full Moon10Fri
11Sat3:223.83:463.710:180.510:290.86:226:10Full Moon11Sat
12Sun4:584.05:433.512:120.37:207:11Waning Gibbous12Sun
13Mon5:364.16:433.312:050.91:060.37:197:12Waning Gibbous13Mon
14Tue6:154.27:463.112:411.12:030.37:177:13Waning Gibbous14Tue
15Wed6:564.18:533.01:211.33:020.37:167:14Waning Gibbous15Wed
16Thu7:434.010:013.02:061.54:050.37:147:15Third Quarter16Thu
17Fri8:383.811:083.03:031.75:080.37:137:16Third Quarter17Fri
18Sat9:493.64:121.86:070.37:117:17Third Quarter18Sat
19Sun12:093.211:10 AM3.45:261.87:010.27:107:18Third Quarter19Sun
20Mon1:013.312:233.46:361.77:500.37:087:19Waning Crescent20Mon
21Tue1:463.51:253.47:381.58:330.47:077:20Waning Crescent21Tue
22Wed2:253.62:173.48:321.29:120.57:057:21Waning Crescent22Wed
23Thu2:593.63:043.39:221.09:460.77:047:22Waning Crescent23Thu
24Fri3:293.73:483.310:070.910:170.87:027:22New Moon24Fri
25Sat3:553.74:313.210:500.710:451.07:017:23New Moon25Sat
26Sun4:153.85:153.111:300.611:121.16:597:24New Moon26Sun
27Mon4:343.96:003.012:090.56:577:25New Moon27Mon
28Tue4:564.06:492.912:470.56:567:26Waxing Crescent28Tue
29Wed5:274.17:422.812:131.31:280.46:547:27Waxing Crescent29Wed
30Thu6:054.18:412.812:511.42:140.46:537:28Waxing Crescent30Thu
31Fri6:494.19:432.81:371.53:100.46:517:29Waxing Crescent31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Show All
What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 10:47 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 28% 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 Crescent (28% 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