Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:07 pm (1.8 ft)
Next high tide : in 2h 49m at 2:57 pm (2.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:183.04:134.111:081.97:234:57Waning Gibbous1Wed
2Thu6:583.14:573.912:31-0.111:56 AM1.87:234:58Waning Gibbous2Thu
3Fri7:373.25:453.61:020.112:471.87:234:59Waning Gibbous3Fri
4Sat8:153.36:393.31:320.31:461.87:235:00Waning Gibbous4Sat
5Sun8:523.47:463.02:030.52:531.77:235:01Third Quarter5Sun
6Mon9:293.59:112.72:380.74:061.67:235:02Third Quarter6Mon
7Tue10:033.610:372.53:160.95:181.37:235:02Third Quarter7Tue
8Wed10:353.711:522.53:581.16:241.07:235:03Third Quarter8Wed
9Thu11:073.94:431.37:230.77:235:04Waning Crescent9Thu
10Fri12:562.511:43 AM4.15:301.58:160.47:225:05Waning Crescent10Fri
11Sat1:542.512:244.36:221.79:050.17:225:06Waning Crescent11Sat
12Sun2:462.61:094.57:201.89:50-0.17:225:07New Moon12Sun
13Mon3:352.71:574.68:221.810:33-0.27:225:08New Moon13Mon
14Tue4:212.82:484.69:231.711:15-0.37:215:09New Moon14Tue
15Wed5:053.03:424.510:221.611:55-0.27:215:10Waxing Crescent15Wed
16Thu5:483.24:394.311:201.57:215:11Waxing Crescent16Thu
17Fri6:313.45:404.012:36-0.112:211.47:205:13Waxing Crescent17Fri
18Sat7:153.66:483.71:170.11:271.37:205:14Waxing Crescent18Sat
19Sun8:023.88:023.31:590.32:401.27:195:15First Quarter19Sun
20Mon8:514.09:233.02:430.63:571.17:195:16First Quarter20Mon
21Tue9:424.210:422.83:300.85:120.97:185:17First Quarter21Tue
22Wed10:334.311:562.84:201.16:210.67:185:18Waxing Gibbous22Wed
23Thu11:214.35:121.37:220.37:175:19Waxing Gibbous23Thu
24Fri1:012.812:074.46:061.58:150.07:175:20Waxing Gibbous24Fri
25Sat1:582.912:494.47:001.79:01-0.17:165:21Waxing Gibbous25Sat
26Sun2:503.01:304.47:531.89:43-0.27:155:22Full Moon26Sun
27Mon3:363.12:094.38:431.810:20-0.17:145:24Full Moon27Mon
28Tue4:193.22:484.39:301.810:540.07:145:25Full Moon28Tue
29Wed4:573.33:284.210:141.711:240.17:135:26Full Moon29Wed
30Thu5:323.34:094.010:561.711:510.37:125:27Waning Gibbous30Thu
31Fri6:033.44:513.911:391.67:115:28Waning Gibbous31Fri
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 5:02 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 10% 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 Waning Crescent (10% 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