Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 9:25 am (-0.2 ft)
Next high tide : in 3h 37m 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 - Mar 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:473.83:583.910:320.710:510.66:386:00Full Moon1Mon
2Tue4:254.04:543.711:260.511:270.86:366:01Waning Gibbous2Tue
3Wed5:034.15:533.412:210.56:356:02Waning Gibbous3Wed
4Thu5:434.16:573.212:021.01:180.56:336:03Waning Gibbous4Thu
5Fri6:254.18:043.012:401.22:190.56:326:04Third Quarter5Fri
6Sat7:124.09:143.01:251.53:240.56:306:05Third Quarter6Sat
7Sun8:093.810:223.02:201.74:280.46:296:06Third Quarter7Sun
8Mon9:173.711:243.13:261.85:280.36:276:07Third Quarter8Mon
9Tue10:323.64:381.86:220.36:266:08Waning Crescent9Tue
10Wed12:173.311:39 AM3.65:451.77:100.36:246:09Waning Crescent10Wed
11Thu1:023.412:363.66:461.67:530.46:236:10Waning Crescent11Thu
12Fri1:413.51:263.67:401.48:310.56:216:10Waning Crescent12Fri
13Sat2:163.62:103.58:291.29:050.66:206:11Waning Crescent13Sat
14Sun3:473.63:523.410:131.010:350.87:187:12New Moon14Sun
15Mon4:123.74:333.410:550.911:030.97:177:13New Moon15Mon
16Tue4:333.75:143.311:350.811:291.07:157:14New Moon16Tue
17Wed4:523.85:583.112:130.77:147:15New Moon17Wed
18Thu5:154.06:463.012:520.77:127:16Waxing Crescent18Thu
19Fri5:454.17:402.912:281.21:340.67:117:17Waxing Crescent19Fri
20Sat6:244.18:432.81:061.32:250.67:097:18Waxing Crescent20Sat
21Sun7:094.19:512.81:511.53:280.67:087:19First Quarter21Sun
22Mon8:034.010:572.82:471.64:370.67:067:20First Quarter22Mon
23Tue9:063.811:583.03:551.65:440.67:057:21First Quarter23Tue
24Wed10:253.75:111.66:450.57:037:22First Quarter24Wed
25Thu12:503.111:50 AM3.66:251.47:390.57:027:23Waxing Gibbous25Thu
26Fri1:343.31:043.67:341.18:280.57:007:24Waxing Gibbous26Fri
27Sat2:153.52:083.68:380.89:130.66:587:25Waxing Gibbous27Sat
28Sun2:523.73:063.59:370.59:550.76:577:26Full Moon28Sun
29Mon3:283.94:023.410:330.310:350.86:557:27Full Moon29Mon
30Tue4:044.04:583.311:260.111:121.06:547:27Full Moon30Tue
31Wed4:394.15:563.112:180.06:527:28Waning Gibbous31Wed
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