38.1450’ N, 121.6920’ W

Rio Vista, CA

41°
H 73°
L 41°
W
2mph
High tide
1:20 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, November 6, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 8:29 pm (0.1 ft)
Next high tide : in 5h 36m at 1:20 pm (4.0 ft)
Sunset today : 5:02 pm
Sunrise tomorrow : 6:38 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1793

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:003.25:243.712:360.112:241.67:305:05Waning Gibbous1Tue
2Wed7:423.36:123.51:060.31:181.67:315:06Waning Gibbous2Wed
3Thu8:183.37:063.21:360.42:181.67:315:07Third Quarter3Thu
4Fri8:543.48:182.92:120.63:241.57:315:08Third Quarter4Fri
5Sat9:303.59:482.72:540.84:361.47:315:09Third Quarter5Sat
6Sun10:123.711:062.73:420.95:421.17:315:10Third Quarter6Sun
7Mon10:543.94:301.16:480.87:315:11Waning Crescent7Mon
8Tue12:122.711:36 AM4.15:241.37:420.57:305:11Waning Crescent8Tue
9Wed1:122.712:184.36:181.48:360.27:305:12Waning Crescent9Wed
10Thu2:062.81:064.47:181.49:240.07:305:13New Moon10Thu
11Fri3:002.91:544.58:181.510:12-0.27:305:14New Moon11Fri
12Sat3:483.02:424.59:181.410:54-0.27:305:15New Moon12Sat
13Sun4:363.23:364.410:181.411:36-0.27:295:16New Moon13Sun
14Mon5:243.34:304.311:121.37:295:18Waxing Crescent14Mon
15Tue6:123.55:304.012:24-0.112:121.37:295:19Waxing Crescent15Tue
16Wed7:003.76:363.71:060.01:181.37:285:20Waxing Crescent16Wed
17Thu7:483.87:483.41:480.22:241.27:285:21First Quarter17Thu
18Fri8:423.99:003.12:360.53:361.17:275:22First Quarter18Fri
19Sat9:364.010:183.03:240.74:481.07:275:23First Quarter19Sat
20Sun10:244.111:302.94:180.95:540.77:265:24First Quarter20Sun
21Mon11:184.25:061.16:540.57:265:25Waxing Gibbous21Mon
22Tue12:303.012:064.36:001.37:480.27:255:26Waxing Gibbous22Tue
23Wed1:303.112:484.36:541.48:360.17:255:27Waxing Gibbous23Wed
24Thu2:183.11:244.37:421.59:180.07:245:28Waxing Gibbous24Thu
25Fri3:063.22:004.38:301.59:540.17:235:29Full Moon25Fri
26Sat3:483.32:424.29:121.510:300.17:225:31Full Moon26Sat
27Sun4:243.33:184.110:001.511:000.27:225:32Full Moon27Sun
28Mon5:003.33:544.110:361.511:300.37:215:33Full Moon28Mon
29Tue5:363.44:304.011:181.511:540.47:205:34Waning Gibbous29Tue
30Wed6:063.45:123.812:001.47:195:35Waning Gibbous30Wed
31Thu6:303.56:003.612:240.512:481.47:185:36Waning Gibbous31Thu
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 6% 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 (6% 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