38.1450’ N, 121.6920’ W

Rio Vista, CA

57°
H -°
L 46°
WSW
8mph
High tide
7:30 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Wednesday, October 14, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 12:15 pm (1.5 ft)
Next high tide : in 5h 04m at 7:30 am (2.7 ft)
Sunset today : 6:30 pm
Sunrise tomorrow : 7:14 am
Moon phase : Waxing Crescent (16% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 1834

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:384.09:013.11:451.13:230.76:456:07Third Quarter1Sat
2Sun8:344.010:163.02:361.34:340.56:446:08Third Quarter2Sun
3Mon9:373.911:273.03:371.55:400.46:426:09Third Quarter3Mon
4Tue10:433.94:441.76:400.26:416:10Waning Crescent4Tue
5Wed12:283.211:44 AM3.95:511.77:320.16:406:11Waning Crescent5Wed
6Thu1:193.312:393.96:531.78:180.16:386:12Waning Crescent6Thu
7Fri2:043.41:283.87:491.69:000.16:376:13Waning Crescent7Fri
8Sat2:443.52:133.88:391.49:370.26:356:13New Moon8Sat
9Sun3:203.52:573.79:251.310:100.46:346:14New Moon9Sun
10Mon3:523.63:403.710:071.210:400.56:326:15New Moon10Mon
11Tue4:213.64:223.510:471.111:070.76:316:16New Moon11Tue
12Wed4:463.65:063.411:261.011:330.86:296:17Waxing Crescent12Wed
13Thu5:083.75:533.212:051.06:286:18Waxing Crescent13Thu
14Fri5:303.86:463.112:001.012:461.06:266:19Waxing Crescent14Fri
15Sat5:583.87:482.912:321.11:351.06:256:20Waxing Crescent15Sat
16Sun6:343.88:592.81:111.32:371.06:236:21First Quarter16Sun
17Mon7:183.810:112.81:591.53:490.96:226:22First Quarter17Mon
18Tue8:113.811:172.82:581.74:590.86:206:23First Quarter18Tue
19Wed9:163.74:051.76:020.76:186:24First Quarter19Wed
20Thu12:122.910:32 AM3.75:151.76:570.56:176:25Waxing Gibbous20Thu
21Fri12:573.111:46 AM3.86:231.57:470.46:156:26Waxing Gibbous21Fri
22Sat1:373.212:513.97:261.28:320.46:146:27Waxing Gibbous22Sat
23Sun2:123.31:503.98:241.09:140.56:126:28Full Moon23Sun
24Mon2:473.52:463.99:200.79:540.56:116:29Full Moon24Mon
25Tue3:213.73:423.710:140.410:320.76:096:30Full Moon25Tue
26Wed3:573.84:403.611:080.311:090.86:086:31Full Moon26Wed
27Thu4:354.05:403.412:020.26:066:31Waning Gibbous27Thu
28Fri5:154.06:433.212:580.16:056:32Waning Gibbous28Fri
29Sat5:584.07:503.012:281.21:580.16:036:33Waning Gibbous29Sat
30Sun6:463.98:593.01:151.43:010.16:016:34Third Quarter30Sun
31Mon7:423.710:073.02:121.64:050.16:006:35Third Quarter31Mon
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 16% 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 (16% 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