Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Thursday, July 2, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide (tomorrow) : in 30m at 11:43 pm (1.9 ft)
Next high tide : 4:43 am (4.0 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:47 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Apr 2004

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:173.212:243.36:561.47:480.65:506:30Waxing Gibbous1Thu
2Fri1:463.31:163.37:481.18:230.75:496:31Waxing Gibbous2Fri
3Sat2:093.32:033.48:360.98:550.85:476:32Full Moon3Sat
4Sun3:293.53:513.310:230.610:260.96:467:33Full Moon4Sun
5Mon3:503.74:413.311:100.410:571.06:447:33Full Moon5Mon
6Tue4:173.95:353.111:580.211:301.16:437:34Full Moon6Tue
7Wed4:514.16:343.012:490.06:417:35Waning Gibbous7Wed
8Thu5:314.27:392.912:081.21:440.06:407:36Waning Gibbous8Thu
9Fri6:164.28:482.812:521.42:450.06:387:37Waning Gibbous9Fri
10Sat7:074.19:592.81:451.53:500.06:377:38Third Quarter10Sat
11Sun8:073.811:063.02:521.64:550.06:357:39Third Quarter11Sun
12Mon9:233.54:141.75:570.06:347:40Third Quarter12Mon
13Tue12:063.210:58 AM3.35:371.66:530.06:327:41Third Quarter13Tue
14Wed12:583.412:243.26:521.37:440.16:317:42Waning Crescent14Wed
15Thu1:433.61:323.27:581.08:300.26:297:43Waning Crescent15Thu
16Fri2:223.72:303.18:570.79:120.46:287:44Waning Crescent16Fri
17Sat2:573.83:233.19:500.59:500.66:277:45New Moon17Sat
18Sun3:293.94:143.010:380.310:250.86:257:46New Moon18Sun
19Mon3:583.95:062.911:240.110:571.06:247:47New Moon19Mon
20Tue4:254.05:592.812:080.06:237:47New Moon20Tue
21Wed4:504.06:552.812:50-0.16:217:48Waxing Crescent21Wed
22Thu5:174.07:512.81:32-0.16:207:49Waxing Crescent22Thu
23Fri5:473.98:472.812:351.62:15-0.16:197:50Waxing Crescent23Fri
24Sat6:233.89:422.81:191.73:010.06:177:51Waxing Crescent24Sat
25Sun7:063.610:362.92:111.83:490.16:167:52First Quarter25Sun
26Mon7:563.411:273.03:131.84:390.26:157:53First Quarter26Mon
27Tue8:583.14:221.85:290.36:147:54First Quarter27Tue
28Wed12:123.110:18 AM2.95:311.66:150.46:127:55First Quarter28Wed
29Thu12:503.211:44 AM2.86:351.46:580.66:117:56Waxing Gibbous29Thu
30Fri1:223.312:542.87:341.17:380.76:107:57Waxing Gibbous30Fri
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 2:13 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 spring phase. Tonight's moon is 97% 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 (97% 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