38.1450’ N, 121.6920’ W

Rio Vista, CA

51°
H 64°
L 49°
SSE
4mph
High tide
8:53 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, November 15, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 1:36 pm (1.8 ft)
Next high tide : in 4h 25m at 8:53 am (2.9 ft)
Sunset today : 4:54 pm
Sunrise tomorrow : 6:48 am
Moon phase : First Quarter (34% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Oct 1730

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:462.75:593.91:400.312:331.66:095:57Waning Gibbous1Sun
2Mon8:522.86:483.72:370.31:281.76:105:55Third Quarter2Mon
3Tue9:552.97:513.53:360.32:361.86:115:54Third Quarter3Tue
4Wed10:523.09:143.34:330.33:491.86:125:52Third Quarter4Wed
5Thu11:413.210:353.25:240.34:591.66:135:51Third Quarter5Thu
6Fri12:233.36:100.46:011.46:145:49Waning Crescent6Fri
7Sat12:593.46:490.56:561.16:155:48Waning Crescent7Sat
8Sun12:333.21:293.57:240.67:460.96:155:46Waning Crescent8Sun
9Mon1:193.21:523.57:550.78:320.76:165:45Waning Crescent9Mon
10Tue2:023.12:093.68:230.89:170.56:175:43New Moon10Tue
11Wed2:443.02:253.88:490.910:000.46:185:42New Moon11Wed
12Thu3:272.92:474.09:171.010:450.26:195:40New Moon12Thu
13Fri4:152.83:194.29:491.111:310.16:205:39Waxing Crescent13Fri
14Sat5:092.73:574.310:271.26:215:37Waxing Crescent14Sat
15Sun6:092.64:424.312:210.111:11 AM1.36:225:36Waxing Crescent15Sun
16Mon7:152.65:334.11:170.012:051.46:235:35Waxing Crescent16Mon
17Tue8:232.76:333.92:180.11:131.56:245:33First Quarter17Tue
18Wed9:292.87:483.63:210.12:361.66:255:32First Quarter18Wed
19Thu10:283.09:253.34:210.14:031.46:265:31First Quarter19Thu
20Fri11:213.310:563.25:160.15:211.16:275:29Waxing Gibbous20Fri
21Sat12:063.66:070.16:300.86:285:28Waxing Gibbous21Sat
22Sun12:073.212:463.86:530.27:310.56:295:27Waxing Gibbous22Sun
23Mon1:063.11:234.07:350.48:280.26:305:25Waxing Gibbous23Mon
24Tue2:003.01:564.18:150.69:200.06:315:24Full Moon24Tue
25Wed2:532.92:284.18:520.810:09-0.16:325:23Full Moon25Wed
26Thu3:452.82:574.29:281.010:55-0.26:335:22Full Moon26Thu
27Fri4:402.73:274.110:031.211:40-0.26:345:20Waning Gibbous27Fri
28Sat5:372.73:594.110:391.46:355:19Waning Gibbous28Sat
29Sun6:352.74:344.012:24-0.211:19 AM1.66:375:18Waning Gibbous29Sun
30Mon7:312.75:153.81:09-0.212:071.76:385:17Waning Gibbous30Mon
31Tue8:262.86:033.51:560.01:041.76:395:16Waning Gibbous31Tue
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 transitional phase. Tonight's moon is 34% 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 shifting between spring and neap.

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 First Quarter (34% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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