38.1450’ N, 121.6920’ W

Rio Vista, CA

85°
H 98°
L 67°
N
9mph
High tide
2:59 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 8, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 8:42 pm (1.4 ft)
Next high tide : in 2h 41m at 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 1893

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:023.94:482.710:58-0.29:531.45:096:58Full Moon1Mon
2Tue3:234.05:422.711:39-0.310:261.65:086:58Full Moon2Tue
3Wed3:484.06:352.712:19-0.35:076:59Waning Gibbous3Wed
4Thu4:183.97:262.812:59-0.25:057:00Waning Gibbous4Thu
5Fri4:553.88:162.81:40-0.25:047:01Waning Gibbous5Fri
6Sat5:383.69:052.912:421.82:24-0.15:037:02Waning Gibbous6Sat
7Sun6:273.49:513.01:421.83:100.15:027:03Third Quarter7Sun
8Mon7:263.110:333.12:491.73:570.25:017:04Third Quarter8Mon
9Tue8:412.911:103.33:591.64:430.35:007:05Third Quarter9Tue
10Wed10:142.711:423.45:071.35:270.54:597:06Third Quarter10Wed
11Thu11:382.76:121.06:090.64:587:07Waning Crescent11Thu
12Fri12:113.612:462.77:130.76:500.84:577:08Waning Crescent12Fri
13Sat12:403.81:482.68:120.37:311.04:567:08Waning Crescent13Sat
14Sun1:114.12:502.59:090.08:141.24:567:09New Moon14Sun
15Mon1:474.33:532.510:03-0.39:011.44:557:10New Moon15Mon
16Tue2:274.55:002.510:56-0.69:531.54:547:11New Moon16Tue
17Wed3:104.56:052.611:47-0.710:481.64:537:12Waxing Crescent17Wed
18Thu3:574.47:062.712:38-0.74:527:13Waxing Crescent18Thu
19Fri4:484.28:022.91:29-0.64:527:14Waxing Crescent19Fri
20Sat5:453.88:553.112:531.72:20-0.54:517:14First Quarter20Sat
21Sun6:513.49:453.42:051.73:11-0.34:507:15First Quarter21Sun
22Mon8:103.110:323.63:191.54:01-0.14:497:16First Quarter22Mon
23Tue9:362.811:163.84:321.34:480.14:497:17First Quarter23Tue
24Wed10:552.611:563.95:401.05:320.44:487:18Waxing Gibbous24Wed
25Thu12:042.56:430.66:130.64:487:18Waxing Gibbous25Thu
26Fri12:324.01:052.57:400.36:510.94:477:19Waxing Gibbous26Fri
27Sat1:044.12:022.58:320.07:261.24:477:20Waxing Gibbous27Sat
28Sun1:334.12:582.59:19-0.28:001.44:467:21Full Moon28Sun
29Mon1:584.13:532.510:03-0.48:351.64:467:21Full Moon29Mon
30Tue2:204.14:472.510:44-0.59:151.74:457:22Full Moon30Tue
31Wed2:444.15:372.711:23-0.59:591.84:457:23Full Moon31Wed
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