Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 51m at 2:45 pm (-0.3 ft)
Next high tide : 9:15 pm (3.6 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 - Jun 2028

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:072.711:534.05:560.75:280.55:458:24First Quarter1Thu
2Fri12:272.57:070.46:150.85:448:25Waxing Gibbous2Fri
3Sat12:364.21:392.48:130.07:031.05:448:25Waxing Gibbous3Sat
4Sun1:184.32:452.49:13-0.37:521.35:448:26Waxing Gibbous4Sun
5Mon1:574.43:472.510:07-0.58:451.55:438:26Full Moon5Mon
6Tue2:344.44:482.610:56-0.79:401.75:438:27Full Moon6Tue
7Wed3:114.35:442.711:42-0.810:341.95:438:28Full Moon7Wed
8Thu3:494.26:352.912:23-0.85:438:28Full Moon8Thu
9Fri4:294.07:213.01:03-0.75:438:29Waning Gibbous9Fri
10Sat5:133.98:023.212:171.91:40-0.65:438:29Waning Gibbous10Sat
11Sun6:003.68:423.41:091.82:15-0.35:438:30Waning Gibbous11Sun
12Mon6:523.39:223.52:041.82:49-0.15:438:30Waning Gibbous12Mon
13Tue7:543.010:023.63:051.73:240.25:438:30Third Quarter13Tue
14Wed9:122.610:413.74:131.53:590.45:438:31Third Quarter14Wed
15Thu10:402.411:193.85:241.34:350.75:438:31Third Quarter15Thu
16Fri12:022.26:351.15:131.05:438:32Third Quarter16Fri
17Sat1:152.27:390.85:531.25:438:32Waning Crescent17Sat
18Sun12:264.02:202.28:360.56:371.55:438:32Waning Crescent18Sun
19Mon12:554.13:202.39:260.27:251.75:438:32Waning Crescent19Mon
20Tue1:264.24:142.410:110.08:211.85:438:33Waning Crescent20Tue
21Wed2:024.35:032.510:51-0.29:211.95:448:33New Moon21Wed
22Thu2:434.45:462.611:30-0.310:201.85:448:33New Moon22Thu
23Fri3:294.46:242.812:07-0.45:448:33New Moon23Fri
24Sat4:194.47:003.012:43-0.45:458:33Waxing Crescent24Sat
25Sun5:124.37:363.212:111.61:20-0.35:458:33Waxing Crescent25Sun
26Mon6:094.08:143.51:091.41:56-0.25:458:33Waxing Crescent26Mon
27Tue7:103.78:553.72:111.32:340.05:468:33Waxing Crescent27Tue
28Wed8:183.39:394.03:191.23:150.25:468:33First Quarter28Wed
29Thu9:372.910:274.24:321.03:580.55:468:33First Quarter29Thu
30Fri11:002.611:164.35:470.74:440.85:478:33First Quarter30Fri
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 6:00 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 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