Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 31m at 5:10 pm (0.7 ft)
Next high tide : 11:34 pm (3.9 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:43 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:544.29:032.812:481.62:34-0.56:097:58Waxing Crescent1Thu
2Fri6:473.910:003.01:491.73:28-0.46:087:59First Quarter2Fri
3Sat7:483.510:533.22:591.74:22-0.36:078:00First Quarter3Sat
4Sun9:053.111:433.44:131.75:14-0.16:068:00First Quarter4Sun
5Mon10:322.95:271.46:030.16:048:01First Quarter5Mon
6Tue12:283.611:52 AM2.76:351.16:490.36:038:02Waxing Gibbous6Tue
7Wed1:083.81:012.77:370.87:300.56:028:03Waxing Gibbous7Wed
8Thu1:443.92:002.68:330.58:070.86:018:04Waxing Gibbous8Thu
9Fri2:153.92:552.69:240.28:401.06:008:05Waxing Gibbous9Fri
10Sat2:433.93:482.510:120.09:111.25:598:06Full Moon10Sat
11Sun3:064.04:412.510:56-0.29:411.45:588:07Full Moon11Sun
12Mon3:264.05:342.511:38-0.310:151.65:578:08Full Moon12Mon
13Tue3:464.06:262.612:17-0.45:578:09Full Moon13Tue
14Wed4:124.07:152.612:55-0.45:568:10Waning Gibbous14Wed
15Thu4:454.08:012.71:31-0.35:558:10Waning Gibbous15Thu
16Fri5:263.98:442.812:251.82:08-0.35:548:11Waning Gibbous16Fri
17Sat6:113.89:262.91:161.82:47-0.25:538:12Waning Gibbous17Sat
18Sun7:033.610:063.12:121.73:29-0.15:528:13Third Quarter18Sun
19Mon8:033.310:453.23:161.64:140.15:528:14Third Quarter19Mon
20Tue9:163.011:233.44:261.45:000.25:518:15Third Quarter20Tue
21Wed10:452.85:391.25:450.45:508:16Third Quarter21Wed
22Thu12:003.612:142.66:500.86:290.65:508:16Waning Crescent22Thu
23Fri12:363.91:302.57:590.57:130.95:498:17Waning Crescent23Fri
24Sat1:134.12:392.49:030.17:591.15:488:18Waning Crescent24Sat
25Sun1:514.43:452.410:03-0.38:481.45:488:19New Moon25Sun
26Mon2:304.54:532.410:58-0.59:431.65:478:19New Moon26Mon
27Tue3:124.66:002.511:50-0.710:401.75:478:20New Moon27Tue
28Wed3:564.57:032.712:39-0.85:468:21Waxing Crescent28Wed
29Thu4:434.37:582.91:26-0.85:468:22Waxing Crescent29Thu
30Fri5:334.18:473.112:391.82:11-0.75:458:22Waxing Crescent30Fri
31Sat6:283.79:333.31:411.82:56-0.55:458:23Waxing 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 8:22 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 35% 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 Third Quarter (35% 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