Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 53m at 3:02 am (1.5 ft)
Next high tide : 7:56 am (3.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:49 am
Moon phase : Waning Gibbous (71% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:363.811:313.23:511.55:370.56:376:00First Quarter1Tue
2Wed10:433.84:561.66:320.46:366:01Waxing Gibbous2Wed
3Thu12:263.411:44 AM3.85:581.57:210.46:346:02Waxing Gibbous3Thu
4Fri1:133.512:383.86:561.48:050.46:336:03Waxing Gibbous4Fri
5Sat1:543.61:263.87:481.38:430.56:316:04Waxing Gibbous5Sat
6Sun2:313.62:103.78:371.19:180.66:306:05Full Moon6Sun
7Mon3:043.62:523.79:221.09:480.76:286:06Full Moon7Mon
8Tue3:333.63:333.610:040.910:150.96:276:07Full Moon8Tue
9Wed3:573.64:143.510:440.810:400.96:256:08Full Moon9Wed
10Thu4:163.74:563.411:240.811:061.06:246:09Waning Gibbous10Thu
11Fri4:343.85:423.312:030.86:226:10Waning Gibbous11Fri
12Sat5:003.96:323.212:460.86:216:11Waning Gibbous12Sat
13Sun6:354.08:313.012:111.22:360.87:197:12Waning Gibbous13Sun
14Mon7:184.09:363.01:551.33:360.87:187:13Third Quarter14Mon
15Tue8:093.910:432.92:471.44:430.77:167:14Third Quarter15Tue
16Wed9:113.811:453.03:501.55:490.77:157:15Third Quarter16Wed
17Thu10:273.75:031.56:500.67:137:16Third Quarter17Thu
18Fri12:403.211:52 AM3.76:181.47:450.57:127:16Waning Crescent18Fri
19Sat1:293.31:073.77:291.28:350.57:107:17Waning Crescent19Sat
20Sun2:123.52:103.78:340.99:220.57:097:18Waning Crescent20Sun
21Mon2:523.73:083.79:340.710:060.67:077:19New Moon21Mon
22Tue3:313.94:043.610:310.410:480.77:067:20New Moon22Tue
23Wed4:104.05:013.511:250.311:290.87:047:21New Moon23Wed
24Thu4:484.15:593.312:170.27:037:22Waxing Crescent24Thu
25Fri5:284.16:593.212:100.91:090.17:017:23Waxing Crescent25Fri
26Sat6:104.18:003.112:511.12:030.16:597:24Waxing Crescent26Sat
27Sun6:544.09:033.11:361.32:580.26:587:25Waxing Crescent27Sun
28Mon7:433.810:053.12:261.43:560.36:567:26First Quarter28Mon
29Tue8:413.611:063.23:251.54:550.36:557:27First Quarter29Tue
30Wed9:523.44:311.65:520.36:537:28First Quarter30Wed
31Thu12:023.311:07 AM3.35:381.56:450.46:527:29First Quarter31Thu
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 5:29 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 71% 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 Waning Gibbous (71% 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