Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 9, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 28m at 5:57 am (1.2 ft)
Next high tide : 11:04 am (2.4 ft)
Sunset today : 8:28 pm
Sunrise tomorrow : 5:43 am
Moon phase : Third Quarter (35% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:023.06:490.46:011.87:036:49First Quarter1Wed
2Thu1:393.17:340.47:051.57:036:47Waxing Gibbous2Thu
3Fri12:443.42:093.28:140.48:011.37:046:46Waxing Gibbous3Fri
4Sat1:403.42:353.48:510.48:531.07:056:44Waxing Gibbous4Sat
5Sun2:303.52:593.69:260.59:440.77:066:43Full Moon5Sun
6Mon3:193.43:253.89:590.610:350.47:076:41Full Moon6Mon
7Tue4:093.33:544.110:320.811:270.27:086:40Full Moon7Tue
8Wed5:033.14:294.311:050.97:096:38Waning Gibbous8Wed
9Thu6:032.95:094.412:210.111:42 AM1.17:106:37Waning Gibbous9Thu
10Fri7:102.75:534.41:180.012:251.37:116:35Waning Gibbous10Fri
11Sat8:242.66:434.32:200.01:171.57:126:34Waning Gibbous11Sat
12Sun9:402.67:404.03:250.02:221.67:136:33Third Quarter12Sun
13Mon10:512.88:523.64:310.03:431.77:146:31Third Quarter13Mon
14Tue11:533.010:213.45:330.05:051.67:156:30Third Quarter14Tue
15Wed12:453.36:280.06:201.47:166:28Waning Crescent15Wed
16Thu1:293.57:180.07:261.17:176:27Waning Crescent16Thu
17Fri12:553.22:073.78:010.18:240.87:186:25Waning Crescent17Fri
18Sat1:523.22:403.88:400.39:160.67:186:24Waning Crescent18Sat
19Sun2:423.13:103.99:150.510:040.47:196:23New Moon19Sun
20Mon3:293.03:363.99:450.710:500.27:206:21New Moon20Mon
21Tue4:172.93:593.910:120.911:340.17:216:20New Moon21Tue
22Wed5:072.74:194.010:361.17:226:19New Moon22Wed
23Thu5:592.64:394.012:160.011:02 AM1.37:246:18Waxing Crescent23Thu
24Fri6:542.65:054.012:590.011:34 AM1.47:256:16Waxing Crescent24Fri
25Sat7:512.55:383.91:420.012:141.67:266:15Waxing Crescent25Sat
26Sun8:502.66:173.82:270.11:031.77:276:14Waxing Crescent26Sun
27Mon9:472.67:043.63:160.22:011.87:286:13First Quarter27Mon
28Tue10:412.78:013.34:070.23:101.87:296:11First Quarter28Tue
29Wed11:292.99:153.14:580.34:271.77:306:10First Quarter29Wed
30Thu12:103.05:470.35:401.57:316:09First Quarter30Thu
31Fri12:453.26:320.36:451.27:326:08Waxing 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 8:30 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 transitional phase. Tonight's moon is 35% 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 shifting between spring and neap.

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 Third Quarter (35% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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