Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 04m at 7:36 pm (1.7 ft)
Next high tide (tomorrow) : 1:55 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:413.05:114.012:120.311:31 AM1.17:036:49Waxing Crescent1Wed
2Thu6:372.85:374.012:580.311:57 AM1.37:046:47Waxing Crescent2Thu
3Fri7:372.76:063.91:460.312:291.47:046:46Waxing Crescent3Fri
4Sat8:402.76:413.82:370.31:101.67:056:44Waxing Crescent4Sat
5Sun9:452.77:253.63:330.32:031.87:066:43First Quarter5Sun
6Mon10:482.88:213.44:300.33:111.97:076:41First Quarter6Mon
7Tue11:442.99:413.25:250.34:281.97:086:40First Quarter7Tue
8Wed12:333.06:160.45:431.77:096:38First Quarter8Wed
9Thu1:133.27:020.46:471.57:106:37Waxing Gibbous9Thu
10Fri12:313.11:463.37:420.47:441.27:116:35Waxing Gibbous10Fri
11Sat1:263.12:123.48:180.58:351.07:126:34Waxing Gibbous11Sat
12Sun2:143.22:343.68:520.69:230.77:136:32Waxing Gibbous12Sun
13Mon2:593.12:563.89:230.810:110.57:146:31Full Moon13Mon
14Tue3:453.03:204.09:540.910:590.27:156:29Full Moon14Tue
15Wed4:352.93:524.310:271.011:490.17:166:28Full Moon15Wed
16Thu5:302.84:294.411:031.17:176:27Waning Gibbous16Thu
17Fri6:312.65:124.512:410.011:46 AM1.37:186:25Waning Gibbous17Fri
18Sat7:392.66:004.41:36-0.112:351.47:196:24Waning Gibbous18Sat
19Sun8:502.66:544.12:37-0.11:371.57:206:23Waning Gibbous19Sun
20Mon10:002.77:593.83:400.02:521.67:216:21Third Quarter20Mon
21Tue11:032.99:223.44:420.04:161.57:226:20Third Quarter21Tue
22Wed11:593.210:553.25:400.05:351.37:236:19Third Quarter22Wed
23Thu12:473.56:330.16:471.07:246:17Waning Crescent23Thu
24Fri12:143.11:293.77:200.17:500.77:256:16Waning Crescent24Fri
25Sat1:193.12:063.98:030.38:470.47:266:15Waning Crescent25Sat
26Sun2:153.02:394.08:420.59:400.27:276:14Waning Crescent26Sun
27Mon3:062.93:084.09:170.710:280.07:286:12New Moon27Mon
28Tue3:562.83:354.09:481.011:14-0.17:296:11New Moon28Tue
29Wed4:472.73:594.010:171.211:58-0.27:306:10New Moon29Wed
30Thu5:402.64:234.010:461.37:316:09New Moon30Thu
31Fri6:352.64:494.012:41-0.311:19 AM1.57:326:08Waxing Crescent31Fri
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 10:45 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 91% 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 (91% 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