38.1450’ N, 121.6920’ W

Rio Vista, CA

71°
H 78°
L 58°
SW
11mph
Low tide
2:35 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, September 3, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 4h 41m at 2:35 pm (1.4 ft)
Next high tide : 8:23 pm (4.4 ft)
Sunset today : 7:33 pm
Sunrise tomorrow : 6:38 am
Moon phase : Third Quarter (56% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1912

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:212.55:524.21:130.612:191.46:025:50Waning Gibbous1Tue
2Wed8:432.56:444.12:230.51:151.66:035:48Third Quarter2Wed
3Thu10:022.57:483.93:390.52:291.76:045:47Third Quarter3Thu
4Fri11:082.79:093.74:480.33:551.76:055:45Third Quarter4Fri
5Sat12:003.05:480.25:161.56:065:44Waning Crescent5Sat
6Sun12:443.26:400.16:271.26:065:42Waning Crescent6Sun
7Mon1:223.47:270.17:300.96:075:41Waning Crescent7Mon
8Tue12:593.61:573.78:090.28:280.66:085:39Waning Crescent8Tue
9Wed1:553.52:303.88:480.49:230.46:095:38New Moon9Wed
10Thu2:483.43:034.09:240.610:160.26:105:36New Moon10Thu
11Fri3:413.23:344.09:580.811:070.16:115:35New Moon11Fri
12Sat4:373.04:054.110:301.011:580.06:125:33Waxing Crescent12Sat
13Sun5:362.84:364.111:011.26:135:32Waxing Crescent13Sun
14Mon6:412.75:104.012:500.011:36 AM1.56:145:31Waxing Crescent14Mon
15Tue7:482.65:503.81:440.012:201.76:155:29Waxing Crescent15Tue
16Wed8:542.76:383.62:410.01:181.96:165:28First Quarter16Wed
17Thu9:572.87:463.33:380.02:341.96:175:26First Quarter17Thu
18Fri10:523.09:213.14:330.03:551.96:185:25First Quarter18Fri
19Sat11:393.210:473.05:230.15:071.66:195:24First Quarter19Sat
20Sun12:203.46:080.16:101.46:205:22Waxing Gibbous20Sun
21Mon12:543.56:480.37:041.16:215:21Waxing Gibbous21Mon
22Tue12:463.01:243.67:230.47:530.86:225:20Waxing Gibbous22Tue
23Wed1:323.01:483.67:550.68:390.66:235:18Waxing Gibbous23Wed
24Thu2:152.92:073.78:230.79:220.56:245:17Full Moon24Thu
25Fri2:572.82:233.98:500.910:040.36:255:16Full Moon25Fri
26Sat3:412.72:454.19:181.110:450.26:265:15Full Moon26Sat
27Sun4:302.63:154.29:491.211:280.16:275:13Full Moon27Sun
28Mon5:252.53:524.310:261.36:285:12Waning Gibbous28Mon
29Tue6:272.44:364.312:150.011:10 AM1.46:295:11Waning Gibbous29Tue
30Wed7:332.45:264.21:090.012:051.66:305:10Waning Gibbous30Wed
31Thu8:402.56:243.92:090.01:131.76:315:09Third Quarter31Thu
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 neap phase. Tonight's moon is 56% 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 minimum.

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 Third Quarter (56% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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