38.1450’ N, 121.6920’ W

Rio Vista, CA

57°
H 81°
L 56°
WSW
10mph
Low tide
10:26 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 4h 59m at 10:26 am (0.7 ft)
Next high tide : 3:54 pm (3.7 ft)
Sunset today : 6:57 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1863

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:492.95:354.012:560.312:111.36:095:57Waning Gibbous1Thu
2Fri7:532.96:203.81:500.312:581.56:105:56Third Quarter2Fri
3Sat8:572.97:153.62:470.31:561.66:115:54Third Quarter3Sat
4Sun9:593.08:263.43:450.33:031.76:125:53Third Quarter4Sun
5Mon10:553.19:463.24:400.44:131.66:125:51Third Quarter5Mon
6Tue11:443.310:593.25:310.45:191.46:135:50Third Quarter6Tue
7Wed12:273.46:160.46:191.26:145:48Waning Crescent7Wed
8Thu1:043.56:570.57:121.06:155:47Waning Crescent8Thu
9Fri12:503.21:343.67:320.68:010.86:165:45Waning Crescent9Fri
10Sat1:353.21:593.68:040.78:470.66:175:44Waning Crescent10Sat
11Sun2:173.12:183.78:330.99:300.56:185:42New Moon11Sun
12Mon2:583.02:343.89:010.910:130.36:195:41New Moon12Mon
13Tue3:402.92:564.09:301.010:550.26:205:39New Moon13Tue
14Wed4:262.93:284.110:031.111:390.16:215:38Waxing Crescent14Wed
15Thu5:172.84:074.210:421.26:225:36Waxing Crescent15Thu
16Fri6:132.84:524.212:270.111:28 AM1.26:235:35Waxing Crescent16Fri
17Sat7:152.75:444.01:200.112:221.36:245:34Waxing Crescent17Sat
18Sun8:202.86:443.82:190.11:291.46:255:32First Quarter18Sun
19Mon9:242.98:013.53:200.12:501.46:265:31First Quarter19Mon
20Tue10:233.19:363.34:200.24:131.36:275:30First Quarter20Tue
21Wed11:163.411:033.25:160.25:291.06:285:28Waxing Gibbous21Wed
22Thu12:033.66:080.26:360.76:295:27Waxing Gibbous22Thu
23Fri12:133.212:453.96:550.37:370.46:305:26Waxing Gibbous23Fri
24Sat1:123.11:234.07:400.48:340.16:315:24Waxing Gibbous24Sat
25Sun2:073.01:594.18:220.69:26-0.16:325:23Full Moon25Sun
26Mon2:593.02:324.29:020.810:15-0.26:335:22Full Moon26Mon
27Tue3:522.93:054.19:411.011:02-0.26:345:21Full Moon27Tue
28Wed4:472.83:384.110:191.211:47-0.26:355:19Waning Gibbous28Wed
29Thu5:432.84:134.010:581.36:365:18Waning Gibbous29Thu
30Fri6:392.84:513.912:32-0.211:41 AM1.56:375:17Waning Gibbous30Fri
31Sat7:352.85:343.71:17-0.112:301.66:385:16Waning Gibbous31Sat
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 100% 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 Full Moon (100% 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