38.1450’ N, 121.6920’ W

Rio Vista, CA

70°
H -°
L 57°
WSW
9mph
High tide
2:26 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, September 24, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 9:28 am (0.5 ft)
Next high tide : in 3h 38m at 2:26 am (3.5 ft)
Sunset today : 7:02 pm
Sunrise tomorrow : 6:55 am
Moon phase : Waxing Gibbous (91% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1868

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:283.37:153.12:010.42:241.77:305:04First Quarter1Wed
2Thu9:063.58:382.82:420.63:391.67:305:05First Quarter2Thu
3Fri9:463.610:162.73:270.74:551.47:305:06First Quarter3Fri
4Sat10:273.811:362.64:150.96:051.17:305:07First Quarter4Sat
5Sun11:094.05:061.17:070.77:305:07Waxing Gibbous5Sun
6Mon12:422.611:52 AM4.25:581.28:040.47:305:08Waxing Gibbous6Mon
7Tue1:402.712:374.46:541.38:560.17:305:09Waxing Gibbous7Tue
8Wed2:342.81:234.67:521.49:44-0.17:305:10Full Moon8Wed
9Thu3:262.92:124.68:501.410:31-0.27:305:11Full Moon9Thu
10Fri4:173.03:024.69:481.411:15-0.27:305:12Full Moon10Fri
11Sat5:073.13:554.510:451.411:58-0.27:305:13Waning Gibbous11Sat
12Sun5:573.34:514.211:421.37:305:14Waning Gibbous12Sun
13Mon6:453.55:513.912:41-0.112:421.37:295:15Waning Gibbous13Mon
14Tue7:353.66:563.61:240.11:461.37:295:16Waning Gibbous14Tue
15Wed8:253.88:083.32:080.32:541.27:295:17Third Quarter15Wed
16Thu9:173.99:243.12:550.64:051.17:285:18Third Quarter16Thu
17Fri10:094.010:382.93:440.85:140.87:285:19Third Quarter17Fri
18Sat10:594.111:452.94:341.06:170.67:285:20Waning Crescent18Sat
19Sun11:454.25:251.27:140.37:275:21Waning Crescent19Sun
20Mon12:463.012:284.26:161.48:050.17:275:22Waning Crescent20Mon
21Tue1:403.01:074.37:051.58:510.07:265:24Waning Crescent21Tue
22Wed2:293.11:434.27:531.69:330.07:265:25New Moon22Wed
23Thu3:143.22:184.28:381.610:110.07:255:26New Moon23Thu
24Fri3:563.22:524.19:221.610:450.17:245:27New Moon24Fri
25Sat4:353.33:254.110:031.611:170.27:245:28New Moon25Sat
26Sun5:113.34:004.010:431.611:460.37:235:29New Moon26Sun
27Mon5:433.44:373.911:221.57:225:30Waxing Crescent27Mon
28Tue6:133.45:183.712:140.412:041.57:225:31Waxing Crescent28Tue
29Wed6:413.56:053.512:430.512:491.57:215:32Waxing Crescent29Wed
30Thu7:113.67:023.31:160.61:451.57:205:34Waxing Crescent30Thu
31Fri7:483.78:203.01:550.82:571.57:195:35First Quarter31Fri
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 91% 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 Gibbous (91% 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