38.1450’ N, 121.6920’ W

Rio Vista, CA

78°
H 81°
L 55°
WSW
10mph
High tide
2:19 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:55 pm (1.5 ft)
Next high tide : in 53m at 2:19 pm (3.3 ft)
Sunset today : 7:03 pm
Sunrise tomorrow : 6:54 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1871

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:524.15:321.07:220.57:305:04Waxing Gibbous1Sun
2Mon12:562.712:274.26:141.28:130.37:305:05Waxing Gibbous2Mon
3Tue1:512.712:594.26:571.48:580.17:305:06Waxing Gibbous3Tue
4Wed2:432.71:284.37:391.59:400.07:305:07Waxing Gibbous4Wed
5Thu3:312.81:564.38:231.610:170.07:305:08Full Moon5Thu
6Fri4:162.82:264.39:071.710:510.07:305:09Full Moon6Fri
7Sat4:582.93:014.39:501.711:230.07:305:10Full Moon7Sat
8Sun5:352.93:404.310:331.711:540.07:305:10Waning Gibbous8Sun
9Mon6:093.04:244.211:181.67:305:11Waning Gibbous9Mon
10Tue6:403.15:134.112:240.112:051.67:305:12Waning Gibbous10Tue
11Wed7:133.36:073.912:570.212:591.57:305:13Waning Gibbous11Wed
12Thu7:483.47:103.61:330.32:041.57:305:14Third Quarter12Thu
13Fri8:303.68:263.22:150.53:211.37:295:15Third Quarter13Fri
14Sat9:173.89:542.93:010.74:401.17:295:16Third Quarter14Sat
15Sun10:084.111:182.83:510.95:550.87:295:17Third Quarter15Sun
16Mon11:014.34:451.17:030.47:285:18Waning Crescent16Mon
17Tue12:302.711:52 AM4.45:431.38:040.17:285:20Waning Crescent17Tue
18Wed1:352.812:414.56:441.58:59-0.17:285:21Waning Crescent18Wed
19Thu2:342.91:304.67:481.69:48-0.37:275:22New Moon19Thu
20Fri3:293.02:184.58:491.710:34-0.47:275:23New Moon20Fri
21Sat4:213.13:064.49:461.711:16-0.37:265:24New Moon21Sat
22Sun5:093.23:554.210:401.711:56-0.27:265:25Waxing Crescent22Sun
23Mon5:543.44:474.011:331.77:255:26Waxing Crescent23Mon
24Tue6:363.55:423.812:340.012:261.67:245:27Waxing Crescent24Tue
25Wed7:183.66:433.51:110.21:231.67:245:28Waxing Crescent25Wed
26Thu8:003.77:523.21:480.52:271.57:235:29First Quarter26Thu
27Fri8:433.89:073.02:260.73:361.47:225:31First Quarter27Fri
28Sat9:293.910:232.83:081.04:481.27:225:32First Quarter28Sat
29Sun10:153.911:342.83:531.25:551.07:215:33First Quarter29Sun
30Mon11:014.04:421.46:550.77:205:34Waxing Gibbous30Mon
31Tue12:372.811:44 AM4.15:331.67:470.57:195:35Waxing Gibbous31Tue
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 84% 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 Waxing Gibbous (84% 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