Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 4:47 pm (0.6 ft)
Next high tide : in 3h 28m at 10:30 am (2.6 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:093.610:272.92:281.44:331.06:376:00Third Quarter1Tue
2Wed9:053.611:283.03:261.65:350.96:356:01Third Quarter2Wed
3Thu10:113.64:291.66:300.86:346:02Third Quarter3Thu
4Fri12:213.011:17 AM3.65:331.67:200.76:326:03Waning Crescent4Fri
5Sat1:053.112:143.76:351.58:050.66:316:04Waning Crescent5Sat
6Sun1:443.21:073.87:331.48:480.56:306:05Waning Crescent6Sun
7Mon2:193.31:573.98:281.29:280.56:286:06New Moon7Mon
8Tue2:523.52:483.99:201.010:070.56:276:07New Moon8Tue
9Wed3:263.73:413.910:120.810:450.66:256:08New Moon9Wed
10Thu4:033.84:373.811:040.611:240.76:246:09Waxing Crescent10Thu
11Fri4:434.05:363.611:580.56:226:10Waxing Crescent11Fri
12Sat5:274.16:413.412:050.812:560.56:216:11Waxing Crescent12Sat
13Sun7:154.18:503.212:500.92:590.57:197:12Waxing Crescent13Sun
14Mon8:094.010:013.22:421.14:070.57:187:13First Quarter14Mon
15Tue9:103.911:123.23:411.35:150.57:167:14First Quarter15Tue
16Wed10:203.84:481.46:200.47:157:15First Quarter16Wed
17Thu12:173.311:32 AM3.75:561.47:180.37:137:16Waxing Gibbous17Thu
18Fri1:143.412:383.67:011.38:110.37:117:17Waxing Gibbous18Fri
19Sat2:043.61:353.68:011.28:580.37:107:18Waxing Gibbous19Sat
20Sun2:473.72:273.68:561.09:400.47:087:19Waxing Gibbous20Sun
21Mon3:263.73:143.69:460.910:170.57:077:20Full Moon21Mon
22Tue4:013.74:003.510:320.710:510.77:057:21Full Moon22Tue
23Wed4:333.74:453.511:160.611:220.87:047:21Full Moon23Wed
24Thu5:013.75:313.411:570.611:490.97:027:22Full Moon24Thu
25Fri5:263.76:193.312:380.57:017:23Waning Gibbous25Fri
26Sat5:483.77:083.212:161.01:190.56:597:24Waning Gibbous26Sat
27Sun6:113.78:003.112:461.12:010.56:587:25Waning Gibbous27Sun
28Mon6:413.78:563.01:221.32:480.66:567:26Waning Gibbous28Mon
29Tue7:193.69:553.02:061.43:420.66:557:27Third Quarter29Tue
30Wed8:063.510:553.02:581.54:400.76:537:28Third Quarter30Wed
31Thu9:023.411:503.04:001.65:400.76:517:29Third Quarter31Thu
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 1:38 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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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