38.1450’ N, 121.6920’ W

Rio Vista, CA

60°
H -°
L 51°
WSW
10mph
Low tide
10:51 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, October 26, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide (tomorrow) : in 14m at 10:51 pm (0.1 ft)
Next high tide : 4:29 am (2.7 ft)
Sunset today : 6:15 pm
Sunrise tomorrow : 7:25 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1998

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:333.112:593.77:160.48:000.46:325:07Waxing Gibbous1Sun
2Mon1:303.11:333.98:000.58:550.16:335:06Full Moon2Mon
3Tue2:263.12:094.18:430.79:49-0.16:355:05Full Moon3Tue
4Wed3:223.02:474.29:270.810:41-0.36:365:04Full Moon4Wed
5Thu4:202.93:284.310:120.911:33-0.46:375:03Waning Gibbous5Thu
6Fri5:212.84:124.210:591.16:385:02Waning Gibbous6Fri
7Sat6:252.84:594.112:26-0.411:51 AM1.26:395:01Waning Gibbous7Sat
8Sun7:292.95:523.81:19-0.312:481.36:405:00Waning Gibbous8Sun
9Mon8:323.06:543.52:15-0.21:541.46:414:59Third Quarter9Mon
10Tue9:323.28:093.23:10-0.13:051.46:424:58Third Quarter10Tue
11Wed10:283.39:313.04:050.04:171.36:434:58Third Quarter11Wed
12Thu11:183.510:472.94:570.15:241.16:444:57Third Quarter12Thu
13Fri12:023.75:450.26:250.86:454:56Waning Crescent13Fri
14Sat12:413.86:280.37:190.56:464:55Waning Crescent14Sat
15Sun12:472.91:153.97:080.58:100.36:474:54Waning Crescent15Sun
16Mon1:382.81:463.97:440.78:560.16:494:54Waning Crescent16Mon
17Tue2:262.82:133.98:180.99:400.06:504:53New Moon17Tue
18Wed3:132.82:353.98:491.010:21-0.16:514:52New Moon18Wed
19Thu3:592.72:553.99:201.211:00-0.16:524:52New Moon19Thu
20Fri4:462.73:173.99:541.311:38-0.16:534:51New Moon20Fri
21Sat5:332.73:473.910:311.36:544:51Waxing Crescent21Sat
22Sun6:202.74:243.912:14-0.111:13 AM1.46:554:50Waxing Crescent22Sun
23Mon7:072.85:073.812:520.012:011.56:564:50Waxing Crescent23Mon
24Tue7:542.85:573.61:330.012:561.56:574:49Waxing Crescent24Tue
25Wed8:423.06:553.32:180.12:011.56:584:49First Quarter25Wed
26Thu9:313.18:083.13:090.23:171.46:594:48First Quarter26Thu
27Fri10:173.39:432.94:010.34:351.27:004:48First Quarter27Fri
28Sat11:013.511:102.84:520.45:460.97:014:48Waxing Gibbous28Sat
29Sun11:423.85:430.56:520.67:024:47Waxing Gibbous29Sun
30Mon12:212.812:224.06:310.67:520.27:034:47Waxing Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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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 100% 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 Full Moon (100% 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