38.1450’ N, 121.6920’ W

Rio Vista, CA

80°
H -°
L 57°
WSW
13mph
High tide
5:48 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:05 am (0.7 ft)
Next high tide : in 1h 07m at 5:48 pm (4.0 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:583.86:003.012:01-0.35:096:57Waning Gibbous1Fri
2Sat4:283.86:513.012:42-0.35:086:58Waning Gibbous2Sat
3Sun5:033.67:423.11:24-0.25:076:59Waning Gibbous3Sun
4Mon5:423.58:323.112:451.52:07-0.15:067:00Waning Gibbous4Mon
5Tue6:293.29:223.21:401.62:520.15:047:01Third Quarter5Tue
6Wed7:253.010:103.32:431.63:390.35:037:02Third Quarter6Wed
7Thu8:422.710:543.43:511.54:260.45:027:03Third Quarter7Thu
8Fri10:162.611:333.44:591.35:120.55:017:04Third Quarter8Fri
9Sat11:312.56:021.15:560.75:007:05Waning Crescent9Sat
10Sun12:073.512:332.56:590.86:380.84:597:06Waning Crescent10Sun
11Mon12:353.61:282.67:530.57:211.04:587:07Waning Crescent11Mon
12Tue1:023.82:212.68:440.38:051.14:577:07Waning Crescent12Tue
13Wed1:324.03:142.69:330.08:501.24:567:08New Moon13Wed
14Thu2:074.14:092.710:20-0.29:391.34:567:09New Moon14Thu
15Fri2:484.25:052.811:06-0.410:291.34:557:10New Moon15Fri
16Sat3:334.36:012.911:53-0.511:221.34:547:11Waxing Crescent16Sat
17Sun4:224.26:563.012:41-0.54:537:12Waxing Crescent17Sun
18Mon5:164.07:513.212:201.31:31-0.44:527:13Waxing Crescent18Mon
19Tue6:163.78:453.31:231.32:23-0.34:527:14First Quarter19Tue
20Wed7:263.49:393.52:321.23:16-0.14:517:14First Quarter20Wed
21Thu8:463.010:313.73:441.14:090.04:507:15First Quarter21Thu
22Fri10:072.811:203.94:550.85:010.24:497:16First Quarter22Fri
23Sat11:222.76:010.65:510.44:497:17Waxing Gibbous23Sat
24Sun12:044.012:282.77:030.36:380.74:487:18Waxing Gibbous24Sun
25Mon12:444.11:272.77:590.07:230.94:487:18Waxing Gibbous25Mon
26Tue1:214.12:222.78:50-0.28:061.14:477:19Waxing Gibbous26Tue
27Wed1:544.13:152.79:38-0.48:481.34:477:20Full Moon27Wed
28Thu2:244.14:072.810:21-0.59:281.54:467:21Full Moon28Thu
29Fri2:544.04:572.811:02-0.510:081.64:467:21Full Moon29Fri
30Sat3:233.95:452.911:40-0.510:491.64:457:22Full Moon30Sat
31Sun3:553.96:303.112:16-0.44:457:23Waning 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 8% 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 Waxing Crescent (8% 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