Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 5:28 pm (0.9 ft)
Next high tide : in 3h 06m at 11:48 am (2.4 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (69% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:594.06:183.212:320.16:517:29Waxing Crescent1Tue
2Wed5:364.07:153.212:181.01:200.16:497:30Waxing Crescent2Wed
3Thu6:143.98:133.112:581.22:100.16:487:31Waxing Crescent3Thu
4Fri6:563.89:123.11:411.33:010.26:467:32Waxing Crescent4Fri
5Sat7:433.610:113.12:311.53:550.36:457:33First Quarter5Sat
6Sun8:403.411:083.23:291.64:510.36:437:34First Quarter6Sun
7Mon9:503.24:331.55:450.46:427:35First Quarter7Mon
8Tue12:023.311:07 AM3.15:391.46:370.56:407:36First Quarter8Tue
9Wed12:513.412:173.06:421.37:230.66:397:37Waxing Gibbous9Wed
10Thu1:333.51:173.07:401.08:050.76:377:38Waxing Gibbous10Thu
11Fri2:103.62:093.08:330.88:430.86:367:39Waxing Gibbous11Fri
12Sat2:413.62:563.09:220.69:181.06:347:40Waxing Gibbous12Sat
13Sun3:063.63:403.010:070.59:501.16:337:41Full Moon13Sun
14Mon3:253.64:243.010:500.310:221.16:327:41Full Moon14Mon
15Tue3:443.75:092.911:320.210:561.26:307:42Full Moon15Tue
16Wed4:093.95:573.012:130.16:297:43Full Moon16Wed
17Thu4:444.06:473.012:560.06:277:44Waning Gibbous17Thu
18Fri5:254.17:413.012:151.21:42-0.16:267:45Waning Gibbous18Fri
19Sat6:134.08:383.01:031.32:330.06:257:46Waning Gibbous19Sat
20Sun7:063.99:363.12:001.33:280.06:237:47Third Quarter20Sun
21Mon8:093.610:353.23:061.34:280.16:227:48Third Quarter21Mon
22Tue9:263.311:313.44:221.35:270.26:217:49Third Quarter22Tue
23Wed10:573.15:381.16:230.26:197:50Third Quarter23Wed
24Thu12:233.612:203.06:500.87:160.36:187:51Waning Crescent24Thu
25Fri1:103.81:303.07:570.58:070.56:177:52Waning Crescent25Fri
26Sat1:523.92:313.08:570.28:540.66:157:53Waning Crescent26Sat
27Sun2:324.03:292.99:530.09:390.86:147:54New Moon27Sun
28Mon3:094.14:242.910:45-0.210:231.06:137:55New Moon28Mon
29Tue3:454.15:202.911:33-0.311:051.26:127:55New Moon29Tue
30Wed4:194.06:152.912:19-0.46:107:56New Moon30Wed
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 2:38 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 transitional phase. Tonight's moon is 69% 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 First Quarter (69% 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