Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 50m at 8:26 pm (1.9 ft)
Next high tide (tomorrow) : 2:27 am (4.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Aug 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:094.26:363.612:480.16:098:16Waning Gibbous1Wed
2Thu6:013.97:083.912:451.31:190.36:108:15Waning Gibbous2Thu
3Fri6:593.67:464.11:421.21:520.56:118:14Waning Gibbous3Fri
4Sat8:073.28:304.32:501.12:300.76:128:13Third Quarter4Sat
5Sun9:302.89:194.54:081.03:131.06:128:12Third Quarter5Sun
6Mon11:022.610:154.55:300.84:051.36:138:11Third Quarter6Mon
7Tue12:292.56:460.55:091.66:148:10Waning Crescent7Tue
8Wed1:422.77:520.26:211.86:158:09Waning Crescent8Wed
9Thu12:184.52:432.98:480.07:331.96:168:08Waning Crescent9Thu
10Fri1:164.43:343.19:37-0.28:401.96:178:06Waning Crescent10Fri
11Sat2:094.44:193.310:21-0.29:401.86:188:05New Moon11Sat
12Sun2:584.34:593.411:00-0.210:331.76:198:04New Moon12Sun
13Mon3:454.25:353.511:350.011:221.66:198:03New Moon13Mon
14Tue4:314.06:093.612:060.26:208:02New Moon14Tue
15Wed5:183.86:393.712:091.512:330.46:218:00Waxing Crescent15Wed
16Thu6:073.67:093.812:561.412:570.66:227:59Waxing Crescent16Thu
17Fri7:013.37:373.91:461.31:190.86:237:58Waxing Crescent17Fri
18Sat8:033.08:063.92:421.31:451.16:247:56Waxing Crescent18Sat
19Sun9:162.78:393.93:471.22:181.36:257:55First Quarter19Sun
20Mon10:352.59:183.94:571.13:021.66:267:54First Quarter20Mon
21Tue11:542.510:093.96:060.93:571.86:267:52First Quarter21Tue
22Wed1:032.67:080.75:032.06:277:51First Quarter22Wed
23Thu1:582.88:000.56:142.06:287:50Waxing Gibbous23Thu
24Fri12:143.92:422.98:440.37:212.06:297:48Waxing Gibbous24Fri
25Sat1:104.03:183.09:240.38:211.86:307:47Waxing Gibbous25Sat
26Sun1:594.03:483.110:000.29:141.66:317:45Full Moon26Sun
27Mon2:464.14:153.310:340.210:041.46:327:44Full Moon27Mon
28Tue3:324.14:403.511:070.310:531.26:327:43Full Moon28Tue
29Wed4:204.05:083.711:380.411:441.06:337:41Full Moon29Wed
30Thu5:103.95:394.012:090.56:347:40Waning Gibbous30Thu
31Fri6:053.66:154.212:370.812:410.76:357:38Waning 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 11:26 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 96% 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 (96% 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