38.1450’ N, 121.6920’ W

Rio Vista, CA

68°
H 74°
L 43°
NNW
9mph
High tide
12:47 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, November 5, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:35 pm (0.3 ft)
Next high tide : in 1h 11m at 12:47 pm (3.9 ft)
Sunset today : 5:03 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1794

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:302.77:333.63:240.72:171.66:095:56First Quarter1Wed
2Thu10:342.88:413.54:270.63:291.66:105:55First Quarter2Thu
3Fri11:292.910:053.45:250.54:441.56:115:53First Quarter3Fri
4Sat12:153.16:180.45:541.46:125:51Waxing Gibbous4Sat
5Sun12:543.37:060.36:571.16:135:50Waxing Gibbous5Sun
6Mon12:303.61:303.57:510.37:560.86:145:48Waxing Gibbous6Mon
7Tue1:273.62:053.78:340.38:520.66:155:47Full Moon7Tue
8Wed2:213.62:403.89:150.49:470.36:165:45Full Moon8Wed
9Thu3:163.53:174.09:550.510:400.26:175:44Full Moon9Thu
10Fri4:123.33:554.110:360.711:340.16:185:43Waning Gibbous10Fri
11Sat5:133.14:374.111:170.86:195:41Waning Gibbous11Sat
12Sun6:173.05:224.112:300.012:021.06:205:40Waning Gibbous12Sun
13Mon7:262.96:123.91:280.012:541.26:215:38Waning Gibbous13Mon
14Tue8:352.97:103.72:290.11:541.46:225:37Third Quarter14Tue
15Wed9:433.08:203.53:310.13:031.56:235:35Third Quarter15Wed
16Thu10:453.29:383.34:310.04:141.56:245:34Third Quarter16Thu
17Fri11:383.410:513.25:260.05:211.36:255:33Waning Crescent17Fri
18Sat12:243.66:160.16:221.16:265:31Waning Crescent18Sat
19Sun1:043.77:000.17:170.86:275:30Waning Crescent19Sun
20Mon12:483.21:403.87:390.28:070.66:285:29Waning Crescent20Mon
21Tue1:363.22:113.88:150.48:530.46:295:27Waning Crescent21Tue
22Wed2:213.12:393.88:470.69:370.36:305:26New Moon22Wed
23Thu3:053.03:023.89:150.810:180.26:315:25New Moon23Thu
24Fri3:492.93:203.89:410.910:580.26:325:23New Moon24Fri
25Sat4:342.83:373.810:081.011:370.26:335:22New Moon25Sat
26Sun5:212.84:023.910:401.16:345:21Waxing Crescent26Sun
27Mon6:112.74:363.912:170.211:17 AM1.26:355:20Waxing Crescent27Mon
28Tue7:052.75:163.812:590.212:011.46:365:19Waxing Crescent28Tue
29Wed8:032.76:043.71:470.212:541.56:375:17Waxing Crescent29Wed
30Thu9:022.77:013.52:420.31:591.56:385:16First Quarter30Thu
31Fri9:582.98:113.33:400.33:151.56:395:15First Quarter31Fri
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 12% 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 Crescent (12% 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