Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 7h 34m at 10:51 am (-0.5 ft)
Next high tide : 4:51 pm (2.7 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:46 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:163.011:01 AM3.95:171.87:140.26:376:00Waxing Gibbous1Sat
2Sun1:113.212:033.96:241.88:020.16:366:01Waxing Gibbous2Sun
3Mon1:573.412:573.97:241.78:440.16:346:02Waxing Gibbous3Mon
4Tue2:373.51:463.98:181.59:220.26:336:03Full Moon4Tue
5Wed3:133.52:313.89:061.49:550.46:316:04Full Moon5Wed
6Thu3:453.63:153.79:501.210:240.56:306:05Full Moon6Thu
7Fri4:133.63:583.610:321.110:490.76:286:06Full Moon7Fri
8Sat4:383.64:433.511:131.011:110.96:276:07Full Moon8Sat
9Sun5:583.76:293.312:540.97:267:08Waning Gibbous9Sun
10Mon6:153.87:203.112:331.01:370.97:247:09Waning Gibbous10Mon
11Tue6:363.88:192.91:001.22:250.97:237:10Waning Gibbous11Tue
12Wed7:063.99:282.81:341.33:240.97:217:11Waning Gibbous12Wed
13Thu7:453.910:412.72:161.64:310.97:207:12Third Quarter13Thu
14Fri8:333.811:502.73:091.75:400.87:187:13Third Quarter14Fri
15Sat9:333.74:131.96:420.67:167:14Third Quarter15Sat
16Sun12:492.810:48 AM3.75:261.97:380.57:157:15Third Quarter16Sun
17Mon1:373.012:123.76:401.78:270.47:137:15Waning Crescent17Mon
18Tue2:163.11:243.87:471.59:120.47:127:16Waning Crescent18Tue
19Wed2:513.32:263.88:491.29:540.47:107:17Waning Crescent19Wed
20Thu3:243.43:223.89:470.910:330.57:097:18New Moon20Thu
21Fri3:563.64:183.710:420.611:100.67:077:19New Moon21Fri
22Sat4:313.95:143.611:360.411:460.87:067:20New Moon22Sat
23Sun5:074.16:143.312:300.37:047:21Waxing Crescent23Sun
24Mon5:454.27:183.112:231.01:270.27:037:22Waxing Crescent24Mon
25Tue6:264.28:262.91:011.22:270.27:017:23Waxing Crescent25Tue
26Wed7:114.29:382.91:451.43:310.27:007:24First Quarter26Wed
27Thu8:024.010:502.92:391.64:380.26:587:25First Quarter27Thu
28Fri9:023.711:563.03:441.85:420.26:577:26First Quarter28Fri
29Sat10:173.54:591.86:410.16:557:27First Quarter29Sat
30Sun12:523.211:38 AM3.46:121.77:330.16:537:28Waxing Gibbous30Sun
31Mon1:403.412:483.37:171.58:190.26:527:29Waxing Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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What time does the tide turn (slack tide) in Rio Vista, CA today?

Slack tide in Rio Vista, CA is approximately 1:51 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 99% 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 Full Moon (99% 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