Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 9:18 pm (2.0 ft)
Next high tide : in 4h 25m at 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 - Oct 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:393.25:144.312:030.211:49 AM0.97:026:49Waning Gibbous1Wed
2Thu6:433.05:544.31:000.212:261.17:036:48Waning Gibbous2Thu
3Fri7:542.76:394.32:010.11:091.37:046:46Waning Gibbous3Fri
4Sat9:102.67:304.13:060.12:031.57:056:45Third Quarter4Sat
5Sun10:262.78:313.84:130.13:111.77:066:43Third Quarter5Sun
6Mon11:362.99:483.65:190.04:301.87:076:42Third Quarter6Mon
7Tue12:343.16:180.05:471.77:086:40Third Quarter7Tue
8Wed1:223.47:10-0.16:561.57:096:39Waning Crescent8Wed
9Thu12:263.42:033.67:560.07:561.27:106:37Waning Crescent9Thu
10Fri1:263.32:383.78:360.18:490.97:116:36Waning Crescent10Fri
11Sat2:173.33:093.79:120.39:380.77:126:34Waning Crescent11Sat
12Sun3:033.23:373.89:430.510:230.67:136:33New Moon12Sun
13Mon3:483.14:013.810:100.711:060.47:146:31New Moon13Mon
14Tue4:333.04:203.810:330.911:480.37:146:30New Moon14Tue
15Wed5:202.84:363.910:551.17:156:28New Moon15Wed
16Thu6:102.74:563.912:290.311:21 AM1.27:166:27Waxing Crescent16Thu
17Fri7:052.65:234.01:110.311:53 AM1.37:176:26Waxing Crescent17Fri
18Sat8:042.55:583.91:560.312:331.57:186:24Waxing Crescent18Sat
19Sun9:072.56:413.82:460.31:211.77:196:23Waxing Crescent19Sun
20Mon10:112.57:323.63:410.32:221.87:206:22First Quarter20Mon
21Tue11:092.78:343.44:390.33:361.87:216:20First Quarter21Tue
22Wed11:592.89:573.25:350.34:571.77:226:19First Quarter22Wed
23Thu12:403.06:260.26:121.47:236:18First Quarter23Thu
24Fri1:153.27:130.37:181.17:246:16Waxing Gibbous24Fri
25Sat12:523.21:463.57:560.38:190.77:256:15Waxing Gibbous25Sat
26Sun1:553.22:173.78:360.49:160.47:266:14Waxing Gibbous26Sun
27Mon2:513.22:484.09:150.610:120.17:276:13Full Moon27Mon
28Tue3:473.03:224.29:530.811:07-0.27:296:12Full Moon28Tue
29Wed4:452.83:584.410:311.07:306:10Full Moon29Wed
30Thu5:462.74:364.412:01-0.311:12 AM1.27:316:09Waning Gibbous30Thu
31Fri6:532.65:184.412:55-0.411:56 AM1.37:326:08Waning Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

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

Slack tide in Rio Vista, CA is approximately 7:04 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