Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 1:02 pm (-0.2 ft)
Next high tide : in 4h 19m at 4:43 am (4.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:48 am
Moon phase : Waning Gibbous (93% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:323.011:03 AM3.75:151.97:210.56:376:00Waxing Gibbous1Mon
2Tue1:213.111:59 AM3.86:171.88:040.46:356:01Waxing Gibbous2Tue
3Wed2:023.212:483.87:141.78:420.46:346:02Waxing Gibbous3Wed
4Thu2:383.21:333.88:051.69:160.56:336:03Waxing Gibbous4Thu
5Fri3:073.32:153.98:511.49:470.66:316:04Full Moon5Fri
6Sat3:303.32:573.99:351.210:150.66:306:05Full Moon6Sat
7Sun3:503.43:423.910:181.010:430.76:286:06Full Moon7Sun
8Mon4:113.64:303.711:020.811:110.86:276:07Waning Gibbous8Mon
9Tue4:373.85:223.611:500.711:420.96:256:08Waning Gibbous9Tue
10Wed5:114.06:223.312:440.66:246:09Waning Gibbous10Wed
11Thu5:524.27:323.012:171.11:490.66:226:10Waning Gibbous11Thu
12Fri6:394.28:512.81:011.33:030.66:216:11Third Quarter12Fri
13Sat7:344.110:112.81:551.54:180.56:196:12Third Quarter13Sat
14Sun8:424.011:242.93:051.75:280.36:186:13Third Quarter14Sun
15Mon10:043.84:271.76:300.26:166:14Waning Crescent15Mon
16Tue12:243.111:27 AM3.85:471.77:240.16:156:15Waning Crescent16Tue
17Wed1:143.312:363.76:581.58:120.16:136:16Waning Crescent17Wed
18Thu1:583.51:343.78:001.38:550.16:126:17Waning Crescent18Thu
19Fri2:373.62:273.78:561.19:340.36:106:18New Moon19Fri
20Sat3:123.73:173.69:460.910:100.56:096:19New Moon20Sat
21Sun3:453.84:063.410:330.710:430.76:076:20New Moon21Sun
22Mon4:163.84:583.311:190.611:130.96:056:20New Moon22Mon
23Tue4:443.95:523.112:040.56:046:21Waxing Crescent23Tue
24Wed5:123.96:513.012:510.56:026:22Waxing Crescent24Wed
25Thu5:423.97:532.912:121.31:420.56:016:23Waxing Crescent25Thu
26Fri6:153.98:592.812:491.52:390.55:596:24Waxing Crescent26Fri
27Sat6:563.710:042.91:371.73:400.55:586:25First Quarter27Sat
28Sun7:453.611:043.02:361.84:400.55:566:26First Quarter28Sun
29Mon8:503.411:573.13:461.95:360.55:556:27First Quarter29Mon
30Tue10:113.34:561.86:250.55:536:28First Quarter30Tue
31Wed12:403.211:25 AM3.25:591.67:090.55:526:29Waxing Gibbous31Wed
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 8:52 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 spring phase. Tonight's moon is 93% 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 Gibbous (93% 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