Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 27m at 8:26 pm (1.9 ft)
Next high tide (tomorrow) : 2:27 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 2041

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:052.87:334.02:411.21:451.26:377:35First Quarter1Sun
2Mon9:262.68:154.03:491.22:271.46:377:34First Quarter2Mon
3Tue10:542.59:064.05:061.03:181.66:387:32First Quarter3Tue
4Wed12:132.56:170.84:231.86:397:31First Quarter4Wed
5Thu1:172.77:190.55:381.96:407:29Waxing Gibbous5Thu
6Fri2:062.98:130.36:561.86:417:28Waxing Gibbous6Fri
7Sat12:394.12:483.09:000.28:081.66:427:26Waxing Gibbous7Sat
8Sun1:454.13:253.29:440.19:121.46:437:25Waxing Gibbous8Sun
9Mon2:444.24:003.410:250.110:101.16:437:23Full Moon9Mon
10Tue3:394.14:353.611:030.211:060.96:447:22Full Moon10Tue
11Wed4:343.95:113.811:400.36:457:20Full Moon11Wed
12Thu5:303.75:484.012:010.712:160.56:467:19Waning Gibbous12Thu
13Fri6:303.46:274.112:570.612:510.86:477:17Waning Gibbous13Fri
14Sat7:353.17:084.21:570.61:291.06:487:15Waning Gibbous14Sat
15Sun8:482.87:544.13:010.52:111.36:497:14Third Quarter15Sun
16Mon10:052.78:474.04:100.53:041.66:497:12Third Quarter16Mon
17Tue11:222.89:503.95:190.34:101.86:507:11Third Quarter17Tue
18Wed12:293.06:220.25:221.86:517:09Third Quarter18Wed
19Thu1:233.27:180.16:311.86:527:08Waning Crescent19Thu
20Fri12:113.72:083.48:060.07:331.66:537:06Waning Crescent20Fri
21Sat1:103.72:473.58:480.08:271.46:547:04Waning Crescent21Sat
22Sun2:013.73:223.69:250.19:171.26:557:03Waning Crescent22Sun
23Mon2:463.63:533.69:570.310:021.16:567:01New Moon23Mon
24Tue3:283.64:193.610:260.510:440.96:567:00New Moon24Tue
25Wed4:083.44:403.610:500.611:250.86:576:58New Moon25Wed
26Thu4:483.34:553.711:110.86:586:57New Moon26Thu
27Fri5:303.15:103.812:040.811:32 AM0.96:596:55Waxing Crescent27Fri
28Sat6:152.95:333.912:440.711:58 AM1.07:006:53Waxing Crescent28Sat
29Sun7:082.86:044.01:280.712:301.27:016:52Waxing Crescent29Sun
30Mon8:132.66:444.02:190.71:101.47:026:50Waxing Crescent30Mon
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 11:26 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 spring phase. Tonight's moon is 96% 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 (96% 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