38.1450’ N, 121.6920’ W

Rio Vista, CA

66°
H 69°
L 44°
NW
10mph
Low tide
2:57 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, November 1, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 24m at 2:57 pm (1.5 ft)
Next high tide : 7:58 pm (3.4 ft)
Sunset today : 5:07 pm
Sunrise tomorrow : 6:33 am
Moon phase : Third Quarter (50% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1805

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:013.09:483.24:510.34:031.86:095:57First Quarter1Tue
2Wed11:493.211:053.25:410.35:131.66:105:56First Quarter2Wed
3Thu12:303.36:250.46:151.46:115:54Waxing Gibbous3Thu
4Fri12:053.21:043.47:050.47:081.26:125:52Waxing Gibbous4Fri
5Sat12:543.21:323.57:400.57:571.06:135:51Waxing Gibbous5Sat
6Sun1:373.21:553.68:120.78:430.86:135:49Full Moon6Sun
7Mon2:193.12:143.78:420.89:270.66:145:48Full Moon7Mon
8Tue3:003.12:363.99:110.910:110.46:155:46Full Moon8Tue
9Wed3:452.93:034.29:421.010:560.36:165:45Full Moon9Wed
10Thu4:362.83:394.310:161.111:440.26:175:43Waning Gibbous10Thu
11Fri5:332.74:204.410:561.26:185:42Waning Gibbous11Fri
12Sat6:382.65:084.312:380.111:44 AM1.36:195:41Waning Gibbous12Sat
13Sun7:472.66:024.11:370.112:431.46:205:39Third Quarter13Sun
14Mon8:572.77:073.82:420.21:561.56:215:38Third Quarter14Mon
15Tue10:022.98:283.53:460.23:191.56:225:36Third Quarter15Tue
16Wed10:593.19:593.34:450.24:381.36:235:35Third Quarter16Wed
17Thu11:493.411:193.35:400.25:501.06:245:34Waning Crescent17Thu
18Fri12:323.76:280.26:540.76:255:32Waning Crescent18Fri
19Sat12:243.21:103.97:130.37:530.46:265:31Waning Crescent19Sat
20Sun1:213.11:454.07:530.58:470.16:275:29New Moon20Sun
21Mon2:133.12:164.08:310.79:370.06:285:28New Moon21Mon
22Tue3:042.92:464.19:060.910:24-0.26:295:27New Moon22Tue
23Wed3:562.83:134.19:381.111:10-0.26:305:26New Moon23Wed
24Thu4:502.83:414.010:091.311:55-0.26:315:24Waxing Crescent24Thu
25Fri5:462.74:114.010:441.56:325:23Waxing Crescent25Fri
26Sat6:422.74:453.912:40-0.211:24 AM1.66:335:22Waxing Crescent26Sat
27Sun7:392.85:263.71:25-0.112:131.76:345:21Waxing Crescent27Sun
28Mon8:342.86:153.42:130.01:121.76:355:19First Quarter28Mon
29Tue9:272.97:173.13:020.12:231.76:365:18First Quarter29Tue
30Wed10:173.18:482.93:510.23:381.66:375:17First Quarter30Wed
31Thu11:023.210:222.74:380.34:491.46:385:16First Quarter31Thu
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 neap phase. Tonight's moon is 50% 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 Third Quarter (50% 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