38.1450’ N, 121.6920’ W

Rio Vista, CA

68°
H 82°
L 46°
NW
4mph
Low tide
12:15 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, October 14, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 18m at 12:15 pm (1.5 ft)
Next high tide : 5:48 pm (4.0 ft)
Sunset today : 6:30 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waxing Crescent (16% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 1833

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:143.75:073.711:180.511:311.35:436:43Waning Gibbous1Sun
2Mon4:543.55:283.711:420.65:446:42Waning Gibbous2Mon
3Tue5:373.35:513.812:111.312:090.85:456:40Waning Gibbous3Tue
4Wed6:293.06:223.912:571.212:421.05:456:39Waning Gibbous4Wed
5Thu7:392.87:014.01:551.21:231.25:466:37Third Quarter5Thu
6Fri9:062.67:494.03:101.22:131.45:476:36Third Quarter6Fri
7Sat10:302.68:474.04:281.03:141.65:486:34Third Quarter7Sat
8Sun11:402.79:554.05:370.84:241.75:496:33Third Quarter8Sun
9Mon12:362.96:370.55:361.75:506:31Waning Crescent9Mon
10Tue1:233.07:290.36:451.55:516:30Waning Crescent10Tue
11Wed12:134.12:043.28:160.27:481.35:516:28Waning Crescent11Wed
12Thu1:124.22:423.49:000.28:471.15:526:26New Moon12Thu
13Fri2:084.23:203.59:410.29:430.95:536:25New Moon13Fri
14Sat3:024.13:573.710:200.310:370.75:546:23New Moon14Sat
15Sun3:573.94:343.810:580.411:320.65:556:22Waxing Crescent15Sun
16Mon4:543.65:133.911:340.65:566:20Waxing Crescent16Mon
17Tue5:553.45:554.012:280.512:110.85:576:19Waxing Crescent17Tue
18Wed7:013.16:404.01:280.512:521.15:586:17Waxing Crescent18Wed
19Thu8:122.97:313.92:320.51:401.35:586:15First Quarter19Thu
20Fri9:262.98:323.83:380.42:391.65:596:14First Quarter20Fri
21Sat10:362.99:413.74:420.33:471.76:006:12First Quarter21Sat
22Sun11:383.110:513.65:410.14:571.76:016:11Waxing Gibbous22Sun
23Mon12:303.36:330.06:011.66:026:09Waxing Gibbous23Mon
24Tue1:143.57:190.06:581.46:036:08Waxing Gibbous24Tue
25Wed12:433.61:523.68:000.07:501.36:046:06Waxing Gibbous25Wed
26Thu1:303.62:273.68:370.18:361.16:056:04Waxing Gibbous26Thu
27Fri2:123.52:573.69:100.39:201.06:056:03Full Moon27Fri
28Sat2:523.53:233.79:400.510:000.96:066:01Full Moon28Sat
29Sun3:313.33:443.710:070.610:390.86:076:00Full Moon29Sun
30Mon4:103.24:033.810:320.711:160.76:085:58Full Moon30Mon
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 16% 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 Crescent (16% 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