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 : 6:32 am (0.7 ft)
Next high tide (tomorrow) : in 35m at 11:26 pm (4.1 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 - Jan 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:442.812:194.46:221.08:060.07:234:57Waxing Gibbous1Thu
2Fri1:422.91:014.47:141.28:56-0.27:234:58Waxing Gibbous2Fri
3Sat2:353.01:404.48:041.39:41-0.27:234:59Full Moon3Sat
4Sun3:253.02:184.38:531.410:22-0.27:235:00Full Moon4Sun
5Mon4:123.12:564.29:391.511:00-0.27:235:00Full Moon5Mon
6Tue4:573.23:354.110:231.611:35-0.17:235:01Full Moon6Tue
7Wed5:393.24:154.011:071.67:235:02Waning Gibbous7Wed
8Thu6:203.34:593.812:070.111:52 AM1.67:235:03Waning Gibbous8Thu
9Fri6:593.45:463.612:370.212:411.67:235:04Waning Gibbous9Fri
10Sat7:383.46:393.31:060.41:351.67:235:05Waning Gibbous10Sat
11Sun8:173.57:443.01:370.62:381.57:225:06Third Quarter11Sun
12Mon8:573.59:022.82:140.83:471.47:225:07Third Quarter12Mon
13Tue9:383.610:212.72:561.04:561.37:225:08Third Quarter13Tue
14Wed10:193.711:312.63:441.26:001.17:225:09Third Quarter14Wed
15Thu10:583.84:351.36:580.87:215:10Waning Crescent15Thu
16Fri12:312.711:38 AM4.05:281.47:500.57:215:11Waning Crescent16Fri
17Sat1:242.812:204.26:231.58:370.37:215:12Waning Crescent17Sat
18Sun2:112.81:034.37:211.59:210.17:205:13Waning Crescent18Sun
19Mon2:562.91:494.48:181.510:030.07:205:14New Moon19Mon
20Tue3:383.12:384.59:151.410:440.07:195:15New Moon20Tue
21Wed4:203.23:294.410:101.311:240.07:195:17New Moon21Wed
22Thu5:023.44:234.311:051.27:185:18Waxing Crescent22Thu
23Fri5:473.65:224.012:050.112:031.17:175:19Waxing Crescent23Fri
24Sat6:333.86:263.712:460.21:051.17:175:20Waxing Crescent24Sat
25Sun7:223.97:383.41:290.42:141.17:165:21First Quarter25Sun
26Mon8:154.08:563.12:170.63:271.07:165:22First Quarter26Mon
27Tue9:104.110:143.03:080.84:400.97:155:23First Quarter27Tue
28Wed10:084.211:273.04:041.05:490.67:145:24First Quarter28Wed
29Thu11:044.25:031.26:510.47:135:26Waxing Gibbous29Thu
30Fri12:313.111:56 AM4.36:011.37:450.27:125:27Waxing Gibbous30Fri
31Sat1:263.212:434.36:571.48:330.17:125:28Waxing Gibbous31Sat
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 2:59 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 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