Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 5:28 pm (0.9 ft)
Next high tide : in 4h 16m at 11:48 am (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:544.07:103.01:03-0.46:097:57Waxing Crescent1Thu
2Fri5:313.98:023.012:281.41:45-0.36:087:58Waxing Crescent2Fri
3Sat6:123.78:533.11:131.52:28-0.26:077:59Waxing Crescent3Sat
4Sun6:573.59:443.22:041.53:12-0.16:068:00Waxing Crescent4Sun
5Mon7:503.210:343.33:011.53:580.16:058:01First Quarter5Mon
6Tue8:573.011:223.44:051.54:440.36:048:02First Quarter6Tue
7Wed10:182.75:121.35:300.46:038:03First Quarter7Wed
8Thu12:073.511:37 AM2.66:161.16:140.66:028:04First Quarter8Thu
9Fri12:483.512:442.57:170.96:550.86:018:05Waxing Gibbous9Fri
10Sat1:223.61:432.58:120.67:341.06:008:06Waxing Gibbous10Sat
11Sun1:503.62:362.59:040.48:121.15:598:07Waxing Gibbous11Sun
12Mon2:123.73:252.59:510.28:511.25:588:07Waxing Gibbous12Mon
13Tue2:333.84:142.610:360.09:331.35:578:08Full Moon13Tue
14Wed3:004.05:042.611:20-0.210:181.45:568:09Full Moon14Wed
15Thu3:354.15:542.712:03-0.35:558:10Full Moon15Thu
16Fri4:164.26:442.812:46-0.45:548:11Waning Gibbous16Fri
17Sat5:034.17:343.01:30-0.55:538:12Waning Gibbous17Sat
18Sun5:554.08:263.112:541.32:16-0.45:538:13Waning Gibbous18Sun
19Mon6:533.89:173.31:551.33:05-0.35:528:14Waning Gibbous19Mon
20Tue7:593.410:103.53:041.33:57-0.25:518:14Third Quarter20Tue
21Wed9:203.111:023.74:181.14:500.05:518:15Third Quarter21Wed
22Thu10:492.811:523.95:330.95:430.25:508:16Third Quarter22Thu
23Fri12:102.76:440.66:340.45:498:17Waning Crescent23Fri
24Sat12:394.11:212.67:500.37:250.65:498:18Waning Crescent24Sat
25Sun1:224.22:242.68:500.08:140.95:488:18Waning Crescent25Sun
26Mon2:014.23:232.69:45-0.29:011.15:478:19Waning Crescent26Mon
27Tue2:384.24:192.710:34-0.49:481.35:478:20New Moon27Tue
28Wed3:134.25:142.811:20-0.510:331.45:468:21New Moon28Wed
29Thu3:484.16:062.912:02-0.65:468:21New Moon29Thu
30Fri4:234.06:553.012:41-0.55:468:22Waxing Crescent30Fri
31Sat5:013.97:413.112:021.61:18-0.55:458:23Waxing Crescent31Sat
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 2:38 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 69% 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 First Quarter (69% 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