38.1450’ N, 121.6920’ W

Rio Vista, CA

71°
H 92°
L 58°
NW
8mph
High tide
2:16 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 7, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:37 pm (1.6 ft)
Next high tide : in 5h 12m at 2:16 pm (3.1 ft)
Sunset today : 7:27 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Sep 1895

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:564.02:263.58:34-0.18:041.75:366:36Waxing Gibbous1Sun
2Mon1:413.93:003.59:100.08:511.55:376:35Full Moon2Mon
3Tue2:233.93:303.69:420.29:351.45:386:33Full Moon3Tue
4Wed3:033.73:573.710:100.410:161.35:386:32Full Moon4Wed
5Thu3:423.64:203.710:340.610:551.25:396:30Full Moon5Thu
6Fri4:213.44:393.810:560.711:341.15:406:29Waning Gibbous6Fri
7Sat5:023.24:593.911:190.95:416:27Waning Gibbous7Sat
8Sun5:502.95:254.012:151.111:46 AM1.05:426:26Waning Gibbous8Sun
9Mon6:512.75:594.11:041.112:201.35:436:24Waning Gibbous9Mon
10Tue8:122.56:414.12:071.11:021.55:446:23Third Quarter10Tue
11Wed9:392.47:324.03:251.01:571.75:446:21Third Quarter11Wed
12Thu10:572.58:354.04:390.83:061.95:456:19Third Quarter12Thu
13Fri11:592.79:523.95:440.64:261.95:466:18Third Quarter13Fri
14Sat12:452.96:390.45:421.75:476:16Waning Crescent14Sat
15Sun1:243.17:270.36:501.55:486:15Waning Crescent15Sun
16Mon12:224.01:583.38:100.27:521.25:496:13Waning Crescent16Mon
17Tue1:224.02:313.58:500.38:500.95:506:12New Moon17Tue
18Wed2:174.03:033.79:280.49:460.65:516:10New Moon18Wed
19Thu3:103.83:373.910:030.510:400.45:516:08New Moon19Thu
20Fri4:053.54:114.110:370.711:350.35:526:07Waxing Crescent20Fri
21Sat5:033.34:484.211:100.95:536:05Waxing Crescent21Sat
22Sun6:063.05:264.212:320.311:45 AM1.15:546:04Waxing Crescent22Sun
23Mon7:152.86:094.11:320.312:251.45:556:02Waxing Crescent23Mon
24Tue8:292.76:593.92:360.21:151.75:566:01First Quarter24Tue
25Wed9:432.88:033.73:410.22:231.95:575:59First Quarter25Wed
26Thu10:502.99:243.54:430.13:421.95:585:58First Quarter26Thu
27Fri11:453.110:453.55:390.04:591.85:585:56Waxing Gibbous27Fri
28Sat12:313.36:280.06:051.65:595:54Waxing Gibbous28Sat
29Sun1:103.57:110.07:031.46:005:53Waxing Gibbous29Sun
30Mon12:463.41:443.67:490.27:531.16:015:51Waxing Gibbous30Mon
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 14% 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 (14% 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