38.1450’ N, 121.6920’ W

Rio Vista, CA

77°
H 90°
L 55°
NW
10mph
Low tide
12:29 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 1h 45m at 12:29 pm (1.0 ft)
Next high tide : 6:18 pm (4.0 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jul 1883

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:282.67:500.06:411.34:547:40Waning Crescent1Sun
2Mon12:304.62:292.78:45-0.37:441.54:547:40Waning Crescent2Mon
3Tue1:174.53:262.99:34-0.48:441.64:557:40New Moon3Tue
4Wed2:034.54:183.010:19-0.59:401.64:557:40New Moon4Wed
5Thu2:484.35:073.211:01-0.510:341.64:567:40New Moon5Thu
6Fri3:344.25:513.411:39-0.411:251.64:567:39Waxing Crescent6Fri
7Sat4:224.06:333.512:15-0.24:577:39Waxing Crescent7Sat
8Sun5:133.77:133.712:161.612:480.04:577:39Waxing Crescent8Sun
9Mon6:083.47:533.81:101.51:210.24:587:39Waxing Crescent9Mon
10Tue7:103.18:353.82:091.51:530.54:597:38First Quarter10Tue
11Wed8:222.89:183.93:131.32:280.84:597:38First Quarter11Wed
12Thu9:382.610:024.04:201.23:071.05:007:37First Quarter12Thu
13Fri10:522.510:464.05:260.93:531.25:017:37First Quarter13Fri
14Sat12:002.56:270.74:431.55:017:36Waxing Gibbous14Sat
15Sun1:002.67:210.45:371.65:027:36Waxing Gibbous15Sun
16Mon12:054.11:532.78:090.36:321.75:037:35Waxing Gibbous16Mon
17Tue12:394.12:392.88:510.17:281.85:037:35Waxing Gibbous17Tue
18Wed1:124.23:202.99:300.08:211.85:047:34Full Moon18Wed
19Thu1:474.23:563.010:060.09:121.75:057:34Full Moon19Thu
20Fri2:274.24:303.210:400.010:011.65:067:33Full Moon20Fri
21Sat3:114.25:023.411:130.010:501.55:077:32Full Moon21Sat
22Sun3:584.25:353.611:460.111:421.35:077:32Waning Gibbous22Sun
23Mon4:504.06:113.812:200.25:087:31Waning Gibbous23Mon
24Tue5:463.76:524.012:381.312:570.35:097:30Waning Gibbous24Tue
25Wed6:523.47:384.21:431.21:380.55:107:29Third Quarter25Wed
26Thu8:123.08:304.32:581.12:260.85:117:29Third Quarter26Thu
27Fri9:392.89:274.44:150.93:211.05:117:28Third Quarter27Fri
28Sat11:022.710:274.55:280.74:231.25:127:27Waning Crescent28Sat
29Sun12:152.86:350.45:291.45:137:26Waning Crescent29Sun
30Mon1:172.97:330.16:351.55:147:25Waning Crescent30Mon
31Tue12:194.52:123.18:25-0.17:371.65:157:24Waning Crescent31Tue
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 Waxing 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