Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 9:25 am (-0.2 ft)
Next high tide (tomorrow) : in 6h 05m at 1:22 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (85% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:104.07:522.91:40-0.56:097:57Waning Gibbous1Sat
2Sun5:503.88:443.012:461.72:25-0.46:087:58Waning Gibbous2Sun
3Mon6:353.69:353.11:391.83:11-0.36:077:59Waning Gibbous3Mon
4Tue7:293.310:233.22:391.83:58-0.16:068:00Third Quarter4Tue
5Wed8:403.011:103.43:471.74:440.16:058:01Third Quarter5Wed
6Thu10:112.711:543.54:581.55:290.36:048:02Third Quarter6Thu
7Fri11:362.56:071.36:130.56:038:03Third Quarter7Fri
8Sat12:343.612:472.57:101.06:530.76:028:04Waning Crescent8Sat
9Sun1:103.71:492.48:080.77:310.96:018:05Waning Crescent9Sun
10Mon1:393.72:442.49:010.48:071.16:008:06Waning Crescent10Mon
11Tue2:033.83:362.49:490.28:431.35:598:07Waning Crescent11Tue
12Wed2:243.94:282.410:340.09:221.45:588:07New Moon12Wed
13Thu2:484.05:192.411:15-0.110:051.55:578:08New Moon13Thu
14Fri3:204.26:092.511:56-0.310:521.65:568:09New Moon14Fri
15Sat3:594.26:572.612:36-0.45:558:10New Moon15Sat
16Sun4:444.27:422.81:16-0.45:548:11Waxing Crescent16Sun
17Mon5:344.18:272.912:351.51:59-0.45:548:12Waxing Crescent17Mon
18Tue6:293.99:133.11:331.52:44-0.35:538:13Waxing Crescent18Tue
19Wed7:313.610:003.32:381.43:31-0.25:528:14First Quarter19Wed
20Thu8:433.310:473.53:501.24:210.05:518:14First Quarter20Thu
21Fri10:063.011:343.85:041.05:110.25:518:15First Quarter21Fri
22Sat11:312.76:160.75:590.55:508:16Waxing Gibbous22Sat
23Sun12:194.012:472.67:250.36:470.75:498:17Waxing Gibbous23Sun
24Mon1:014.21:552.58:280.07:341.05:498:18Waxing Gibbous24Mon
25Tue1:404.32:582.59:27-0.38:221.25:488:18Waxing Gibbous25Tue
26Wed2:174.33:592.510:20-0.59:101.45:478:19Full Moon26Wed
27Thu2:524.34:582.611:08-0.79:591.65:478:20Full Moon27Thu
28Fri3:274.25:542.711:53-0.810:491.85:468:21Full Moon28Fri
29Sat4:034.16:462.812:35-0.85:468:21Full Moon29Sat
30Sun4:414.07:333.01:15-0.75:468:22Waning Gibbous30Sun
31Mon5:233.88:173.212:271.81:53-0.55:458:23Waning Gibbous31Mon
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 5:23 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 spring phase. Tonight's moon is 85% 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 Waxing Gibbous (85% 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