38.1450’ N, 121.6920’ W

Rio Vista, CA

81°
H 81°
L 57°
W
9mph
High tide
3:54 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 10:57 pm (0.7 ft)
Next high tide : in 13m at 3:54 pm (3.7 ft)
Sunset today : 6:57 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1863

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:272.812:384.36:381.48:35-0.17:305:04Waxing Gibbous1Thu
2Fri2:182.91:144.37:251.59:17-0.27:305:05Waxing Gibbous2Fri
3Sat3:052.91:494.28:121.69:56-0.27:305:06Full Moon3Sat
4Sun3:493.02:234.28:581.610:30-0.17:305:07Full Moon4Sun
5Mon4:303.02:574.19:411.611:020.07:305:08Full Moon5Mon
6Tue5:073.13:324.110:241.611:300.17:305:09Full Moon6Tue
7Wed5:413.24:104.011:061.511:550.27:305:09Waning Gibbous7Wed
8Thu6:103.24:523.811:491.57:305:10Waning Gibbous8Thu
9Fri6:373.35:383.612:210.312:361.57:305:11Waning Gibbous9Fri
10Sat7:033.56:313.312:490.41:311.47:305:12Waning Gibbous10Sat
11Sun7:343.67:373.01:230.62:381.47:305:13Third Quarter11Sun
12Mon8:143.89:042.82:030.83:551.27:305:14Third Quarter12Mon
13Tue9:023.910:332.62:511.05:111.07:295:15Third Quarter13Tue
14Wed9:574.111:502.63:451.26:200.77:295:16Waning Crescent14Wed
15Thu10:564.24:451.47:210.47:295:17Waning Crescent15Thu
16Fri12:542.711:53 AM4.45:511.58:160.17:285:18Waning Crescent16Fri
17Sat1:512.812:494.57:001.59:06-0.17:285:19Waning Crescent17Sat
18Sun2:423.01:434.58:081.59:53-0.27:285:21New Moon18Sun
19Mon3:303.12:364.49:101.410:36-0.27:275:22New Moon19Mon
20Tue4:163.33:294.310:081.311:17-0.17:275:23New Moon20Tue
21Wed5:013.54:234.111:041.311:560.07:265:24Waxing Crescent21Wed
22Thu5:453.75:203.812:001.27:265:25Waxing Crescent22Thu
23Fri6:283.86:213.512:350.212:581.27:255:26Waxing Crescent23Fri
24Sat7:123.97:283.21:130.52:011.27:245:27First Quarter24Sat
25Sun7:584.08:403.01:530.73:091.17:245:28First Quarter25Sun
26Mon8:474.09:552.82:371.04:190.97:235:29First Quarter26Mon
27Tue9:384.111:062.83:261.25:260.77:225:30First Quarter27Tue
28Wed10:324.14:201.46:270.57:225:32Waxing Gibbous28Wed
29Thu12:102.911:23 AM4.15:161.67:210.37:215:33Waxing Gibbous29Thu
30Fri1:063.012:114.16:131.68:070.27:205:34Waxing Gibbous30Fri
31Sat1:543.112:554.17:071.68:490.27:195:35Waxing Gibbous31Sat
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