38.1450’ N, 121.6920’ W

Rio Vista, CA

60°
H -°
L 57°
WSW
6mph
Low tide
9:06 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 8, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 6h 52m at 9:06 am (0.1 ft)
Next high tide : 2:59 pm (3.4 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Crescent (7% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 1894

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:293.412:392.67:031.06:560.85:096:57Waning Crescent1Tue
2Wed12:543.51:332.67:560.77:301.05:086:58Waning Crescent2Wed
3Thu1:143.72:252.68:460.48:041.15:076:59Waning Crescent3Thu
4Fri1:373.93:192.59:340.18:411.35:067:00New Moon4Fri
5Sat2:064.14:162.510:22-0.19:211.45:057:01New Moon5Sat
6Sun2:424.35:172.511:09-0.310:071.55:047:02New Moon6Sun
7Mon3:244.46:182.611:58-0.410:591.65:027:03Waxing Crescent7Mon
8Tue4:104.47:172.712:49-0.55:017:04Waxing Crescent8Tue
9Wed5:024.28:142.81:42-0.45:007:05Waxing Crescent9Wed
10Thu6:013.99:083.01:041.62:36-0.34:597:06First Quarter10Thu
11Fri7:103.510:003.32:191.63:31-0.24:597:06First Quarter11Fri
12Sat8:333.210:483.53:361.44:230.04:587:07First Quarter12Sat
13Sun10:012.911:333.74:501.15:130.24:577:08First Quarter13Sun
14Mon11:202.86:000.86:000.44:567:09Waxing Gibbous14Mon
15Tue12:143.912:282.77:030.46:430.64:557:10Waxing Gibbous15Tue
16Wed12:504.11:282.68:010.17:230.94:547:11Waxing Gibbous16Wed
17Thu1:244.12:262.58:55-0.28:011.14:537:12Full Moon17Thu
18Fri1:534.23:222.59:44-0.48:371.44:527:13Full Moon18Fri
19Sat2:214.24:192.510:29-0.59:131.64:527:13Full Moon19Sat
20Sun2:474.15:152.611:12-0.69:521.74:517:14Full Moon20Sun
21Mon3:154.16:082.711:52-0.610:351.84:507:15Waning Gibbous21Mon
22Tue3:474.06:572.812:31-0.64:507:16Waning Gibbous22Tue
23Wed4:243.97:423.01:09-0.54:497:17Waning Gibbous23Wed
24Thu5:063.78:263.112:131.91:47-0.34:487:18Waning Gibbous24Thu
25Fri5:543.49:083.21:101.92:25-0.14:487:18Third Quarter25Fri
26Sat6:483.19:483.32:131.83:040.14:477:19Third Quarter26Sat
27Sun7:552.810:253.43:221.63:440.34:477:20Third Quarter27Sun
28Mon9:262.510:583.54:311.44:220.54:467:21Third Quarter28Mon
29Tue10:572.411:263.65:381.25:000.74:467:21Waning Crescent29Tue
30Wed12:112.36:420.95:371.04:457:22Waning Crescent30Wed
31Thu1:172.37:410.56:151.24:457:23Waning Crescent31Thu
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 7% 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 Waning Crescent (7% 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