38.1450’ N, 121.6920’ W

Rio Vista, CA

72°
H -°
L 65°
WSW
15mph
High tide
3:17 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, August 27, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 10:48 am (0.3 ft)
Next high tide : in 1h 56m at 3:17 am (3.9 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:32 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:023.04:074.111:001.77:234:57Waning Gibbous1Fri
2Sat6:433.14:483.912:21-0.111:45 AM1.77:234:58Waning Gibbous2Sat
3Sun7:243.25:323.712:520.112:341.77:234:59Waning Gibbous3Sun
4Mon8:033.26:223.51:220.31:291.77:234:59Waning Gibbous4Mon
5Tue8:423.37:223.21:540.42:331.77:235:00Third Quarter5Tue
6Wed9:203.48:402.92:310.63:441.67:235:01Third Quarter6Wed
7Thu9:563.510:082.73:110.84:561.47:235:02Third Quarter7Thu
8Fri10:313.711:262.63:561.06:031.17:235:03Third Quarter8Fri
9Sat11:053.94:421.27:040.87:235:04Waning Crescent9Sat
10Sun12:322.611:42 AM4.15:311.37:590.57:235:05Waning Crescent10Sun
11Mon1:302.612:234.36:231.58:500.27:235:06Waning Crescent11Mon
12Tue2:242.71:074.57:201.69:38-0.17:225:07New Moon12Tue
13Wed3:152.81:544.68:201.610:23-0.27:225:08New Moon13Wed
14Thu4:052.92:444.69:201.611:07-0.37:225:09New Moon14Thu
15Fri4:533.03:374.510:191.511:50-0.37:225:10New Moon15Fri
16Sat5:403.24:334.311:171.47:215:11Waxing Crescent16Sat
17Sun6:263.45:344.112:32-0.212:171.47:215:12Waxing Crescent17Sun
18Mon7:143.66:403.71:150.01:221.47:215:13Waxing Crescent18Mon
19Tue8:033.87:543.41:590.22:331.37:205:14First Quarter19Tue
20Wed8:533.99:133.12:450.53:471.27:205:15First Quarter20Wed
21Thu9:454.110:312.93:340.75:011.07:195:16First Quarter21Thu
22Fri10:364.211:422.94:240.96:090.77:195:17Waxing Gibbous22Fri
23Sat11:244.35:161.27:100.47:185:19Waxing Gibbous23Sat
24Sun12:462.912:094.36:081.48:030.27:175:20Waxing Gibbous24Sun
25Mon1:423.012:504.46:591.58:500.07:175:21Waxing Gibbous25Mon
26Tue2:333.11:294.47:491.69:33-0.17:165:22Full Moon26Tue
27Wed3:203.12:074.38:371.710:110.07:155:23Full Moon27Wed
28Thu4:043.22:444.39:221.710:450.07:155:24Full Moon28Thu
29Fri4:443.33:214.210:051.711:160.27:145:25Full Moon29Fri
30Sat5:213.34:004.110:471.611:440.37:135:26Full Moon30Sat
31Sun5:543.34:394.011:281.67:125:28Waning Gibbous31Sun
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 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