Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 5:23 am (1.1 ft)
Next high tide (tomorrow) : in 51m at 10:43 pm (4.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (49% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 2016

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:492.84:423.812:080.011:13 AM1.17:336:07New Moon1Tue
2Wed6:382.85:073.812:470.011:47 AM1.27:346:06Waxing Crescent2Wed
3Thu7:292.75:403.81:270.012:261.37:356:05Waxing Crescent3Thu
4Fri8:212.76:203.62:080.11:121.47:366:03Waxing Crescent4Fri
5Sat9:142.87:063.52:520.22:061.57:376:02Waxing Crescent5Sat
6Sun9:072.87:023.22:410.22:111.66:385:01First Quarter6Sun
7Mon9:583.08:123.03:330.33:241.56:395:01First Quarter7Mon
8Tue10:433.19:452.94:250.34:381.36:415:00First Quarter8Tue
9Wed11:243.311:122.95:150.45:461.06:424:59Waxing Gibbous9Wed
10Thu12:013.56:020.46:490.76:434:58Waxing Gibbous10Thu
11Fri12:192.912:363.86:480.57:470.46:444:57Waxing Gibbous11Fri
12Sat1:182.91:114.07:330.68:420.16:454:56Waxing Gibbous12Sat
13Sun2:142.91:474.28:180.89:36-0.26:464:55Full Moon13Sun
14Mon3:102.92:264.39:030.910:28-0.36:474:55Full Moon14Mon
15Tue4:072.83:084.49:511.011:19-0.46:484:54Full Moon15Tue
16Wed5:072.83:534.310:411.16:494:53Waning Gibbous16Wed
17Thu6:092.84:414.112:10-0.511:34 AM1.26:504:53Waning Gibbous17Thu
18Fri7:112.95:343.91:01-0.412:321.36:514:52Waning Gibbous18Fri
19Sat8:113.06:363.51:53-0.31:381.46:524:51Third Quarter19Sat
20Sun9:093.27:493.22:46-0.22:481.46:534:51Third Quarter20Sun
21Mon10:043.49:113.03:390.04:001.36:544:50Third Quarter21Mon
22Tue10:553.610:282.84:310.15:081.06:564:50Third Quarter22Tue
23Wed11:413.811:362.85:190.36:110.76:574:49Waning Crescent23Wed
24Thu12:213.96:040.47:080.46:584:49Waning Crescent24Thu
25Fri12:352.812:574.06:460.67:590.26:594:48Waning Crescent25Fri
26Sat1:282.81:294.07:240.88:470.07:004:48Waning Crescent26Sat
27Sun2:172.81:584.08:001.09:31-0.17:014:48New Moon27Sun
28Mon3:052.72:234.08:341.110:12-0.27:024:47New Moon28Mon
29Tue3:522.72:454.09:081.310:51-0.27:034:47New Moon29Tue
30Wed4:382.73:084.09:441.311:28-0.27:044:47New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Show All
What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 2:03 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 neap phase. Tonight's moon is 49% 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 minimum.

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 (49% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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