38.1450’ N, 121.6920’ W

Rio Vista, CA

67°
H -°
L 56°
WSW
7mph
High tide
2:26 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, September 24, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 9:28 am (0.5 ft)
Next high tide : in 1h 56m at 2:26 am (3.5 ft)
Sunset today : 7:00 pm
Sunrise tomorrow : 6:56 am
Moon phase : Waxing Gibbous (96% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1867

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:332.85:423.51:260.012:301.56:395:15Waxing Crescent1Fri
2Sat8:302.96:293.32:140.11:271.66:405:14First Quarter2Sat
3Sun9:263.07:313.03:040.22:351.66:415:13First Quarter3Sun
4Mon10:193.19:032.83:550.33:491.56:435:12First Quarter4Mon
5Tue11:063.210:302.74:440.34:581.46:445:10First Quarter5Tue
6Wed11:473.311:382.75:300.46:001.16:455:09Waxing Gibbous6Wed
7Thu12:213.56:120.56:550.96:465:09Waxing Gibbous7Thu
8Fri12:332.812:503.66:520.67:460.66:475:08Waxing Gibbous8Fri
9Sat1:212.81:143.77:290.78:340.46:485:07Waxing Gibbous9Sat
10Sun2:082.81:393.98:070.89:210.26:495:06Full Moon10Sun
11Mon2:552.82:094.18:450.910:070.06:505:05Full Moon11Mon
12Tue3:442.72:444.29:261.010:53-0.26:515:04Full Moon12Tue
13Wed4:372.73:254.310:111.111:41-0.36:525:03Waning Gibbous13Wed
14Thu5:342.74:114.311:001.26:535:02Waning Gibbous14Thu
15Fri6:332.85:034.112:30-0.311:55 AM1.26:545:02Waning Gibbous15Fri
16Sat7:342.96:003.91:23-0.212:591.36:565:01Waning Gibbous16Sat
17Sun8:363.07:093.52:19-0.22:111.36:575:00Third Quarter17Sun
18Mon9:363.28:313.23:16-0.13:271.26:585:00Third Quarter18Mon
19Tue10:323.59:573.04:120.04:411.06:594:59Third Quarter19Tue
20Wed11:233.711:132.95:050.15:500.77:004:58Waning Crescent20Wed
21Thu12:083.95:560.36:520.47:014:58Waning Crescent21Thu
22Fri12:182.912:484.06:420.47:490.17:024:57Waning Crescent22Fri
23Sat1:152.91:244.17:260.68:40-0.17:034:57Waning Crescent23Sat
24Sun2:072.81:574.18:070.89:28-0.37:044:56New Moon24Sun
25Mon2:582.82:274.18:451.010:13-0.37:054:56New Moon25Mon
26Tue3:482.82:564.09:221.210:55-0.47:064:56New Moon26Tue
27Wed4:382.83:254.09:581.311:35-0.47:074:55New Moon27Wed
28Thu5:282.83:553.910:361.47:084:55Waxing Crescent28Thu
29Fri6:182.94:293.812:14-0.311:17 AM1.57:094:55Waxing Crescent29Fri
30Sat7:062.95:083.612:52-0.212:041.67:104:54Waxing Crescent30Sat
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 96% 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 Gibbous (96% 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