Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 6:32 am (0.7 ft)
Next high tide : in 5h 30m at 11:26 pm (4.1 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:44 am
Moon phase : First Quarter (59% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:103.412:334.06:571.38:120.26:376:00Waxing Gibbous1Wed
2Thu1:573.51:254.07:541.28:560.26:366:01Waxing Gibbous2Thu
3Fri2:403.62:123.98:471.19:360.36:346:02Full Moon3Fri
4Sat3:193.72:583.99:351.010:120.56:336:03Full Moon4Sat
5Sun3:543.73:443.810:210.910:440.66:326:04Full Moon5Sun
6Mon4:283.74:313.711:040.911:140.86:306:05Full Moon6Mon
7Tue4:593.75:193.511:470.811:410.96:296:06Waning Gibbous7Tue
8Wed5:283.76:113.412:310.86:276:07Waning Gibbous8Wed
9Thu5:553.77:063.212:101.01:180.86:266:08Waning Gibbous9Thu
10Fri6:243.78:063.112:431.22:110.96:246:09Waning Gibbous10Fri
11Sat6:593.69:103.01:241.33:100.96:236:10Third Quarter11Sat
12Sun8:433.611:143.03:151.55:120.97:217:11Third Quarter12Sun
13Mon9:393.54:141.66:120.87:207:12Third Quarter13Mon
14Tue12:133.010:51 AM3.45:191.67:070.87:187:13Third Quarter14Tue
15Wed1:043.112:033.46:251.67:570.77:177:14Waning Crescent15Wed
16Thu1:473.21:053.57:261.48:420.77:157:14Waning Crescent16Thu
17Fri2:243.31:593.68:241.39:250.67:147:15Waning Crescent17Fri
18Sat2:573.42:493.79:181.010:050.67:127:16Waning Crescent18Sat
19Sun3:283.53:403.710:100.810:440.77:107:17New Moon19Sun
20Mon4:013.74:323.711:010.611:220.77:097:18New Moon20Mon
21Tue4:363.95:273.611:520.47:077:19New Moon21Tue
22Wed5:154.16:263.412:020.812:440.37:067:20Waxing Crescent22Wed
23Thu5:584.17:293.312:430.91:400.37:047:21Waxing Crescent23Thu
24Fri6:464.18:363.21:291.02:400.37:037:22Waxing Crescent24Fri
25Sat7:394.09:453.12:211.13:440.37:017:23First Quarter25Sat
26Sun8:413.810:543.23:221.34:500.37:007:24First Quarter26Sun
27Mon9:523.611:583.34:301.35:540.36:587:25First Quarter27Mon
28Tue11:083.55:401.36:530.36:577:26First Quarter28Tue
29Wed12:543.512:203.46:471.27:460.36:557:27Waxing Gibbous29Wed
30Thu1:433.61:213.47:491.08:340.36:547:28Waxing Gibbous30Thu
31Fri2:263.72:153.48:450.89:170.46:527:29Waxing Gibbous31Fri
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 2:59 am — 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 neap phase. Tonight's moon is 59% 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 minimum.

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 (59% illuminated). This places Rio Vista, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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