38.1450’ N, 121.6920’ W

Rio Vista, CA

72°
H 84°
L 57°
WSW
15mph
Low tide
11:34 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 43m at 11:34 am (0.6 ft)
Next high tide : 5:18 pm (3.9 ft)
Sunset today : 7:19 pm
Sunrise tomorrow : 6:46 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Feb 1888

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:113.65:474.012:200.312:311.27:115:29Waning Gibbous1Wed
2Thu6:523.76:513.712:580.41:341.27:105:30Waning Gibbous2Thu
3Fri7:383.98:053.41:400.62:461.17:095:31Third Quarter3Fri
4Sat8:314.09:263.12:280.84:031.07:095:32Third Quarter4Sat
5Sun9:304.110:463.03:221.15:170.87:085:33Third Quarter5Sun
6Mon10:314.211:583.04:221.36:250.57:075:35Waning Crescent6Mon
7Tue11:304.35:261.47:260.27:065:36Waning Crescent7Tue
8Wed1:013.112:244.36:301.58:200.07:055:37Waning Crescent8Wed
9Thu1:573.21:144.37:311.69:08-0.17:045:38Waning Crescent9Thu
10Fri2:473.32:004.38:281.69:51-0.17:025:39New Moon10Fri
11Sat3:323.42:454.29:201.610:310.07:015:40New Moon11Sat
12Sun4:153.53:304.110:081.511:080.17:005:41New Moon12Sun
13Mon4:543.54:164.010:541.511:410.36:595:42New Moon13Mon
14Tue5:313.65:043.811:381.46:585:43Waxing Crescent14Tue
15Wed6:063.65:553.612:130.512:231.46:575:45Waxing Crescent15Wed
16Thu6:413.76:533.412:440.71:131.46:565:46Waxing Crescent16Thu
17Fri7:163.77:583.11:160.92:111.46:545:47Waxing Crescent17Fri
18Sat7:543.79:102.91:521.13:181.36:535:48First Quarter18Sat
19Sun8:363.710:232.82:361.34:281.26:525:49First Quarter19Sun
20Mon9:243.711:302.93:271.55:351.16:515:50First Quarter20Mon
21Tue10:163.74:251.66:340.96:495:51First Quarter21Tue
22Wed12:292.911:09 AM3.85:241.77:250.76:485:52Waxing Gibbous22Wed
23Thu1:193.011:59 AM3.96:231.78:100.66:475:53Waxing Gibbous23Thu
24Fri2:023.112:464.07:191.68:510.56:455:54Waxing Gibbous24Fri
25Sat2:393.11:334.18:111.59:290.56:445:55Full Moon25Sat
26Sun3:113.22:204.29:011.310:050.46:435:56Full Moon26Sun
27Mon3:413.33:094.29:501.110:400.56:415:57Full Moon27Mon
28Tue4:123.54:004.110:391.011:140.56:405:58Full Moon28Tue
29Wed4:443.74:554.011:300.811:500.66:385:59Waning Gibbous29Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Collapse All
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 3% 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 New Moon (3% 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