38.1450’ N, 121.6920’ W

Rio Vista, CA

80°
H 83°
L 55°
WSW
13mph
Low tide
6:24 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 6, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 4h 10m at 6:24 pm (1.7 ft)
Next high tide (tomorrow) : 12:01 am (4.1 ft)
Sunset today : 7:28 pm
Sunrise tomorrow : 6:41 am
Moon phase : Waning Crescent (23% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Jan 1897

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:182.61:054.57:121.69:30-0.47:234:58New Moon1Fri
2Sat3:152.71:524.58:171.710:16-0.57:234:59New Moon2Sat
3Sun4:072.92:394.39:171.810:59-0.57:234:59New Moon3Sun
4Mon4:563.03:274.210:141.711:39-0.47:235:00New Moon4Mon
5Tue5:403.24:174.011:071.77:235:01Waxing Crescent5Tue
6Wed6:213.45:093.712:16-0.211:59 AM1.77:235:02Waxing Crescent6Wed
7Thu7:013.56:073.412:520.012:541.67:235:03Waxing Crescent7Thu
8Fri7:413.67:133.11:260.31:551.57:235:04Waxing Crescent8Fri
9Sat8:223.78:282.82:010.53:041.47:235:05First Quarter9Sat
10Sun9:043.89:482.62:370.84:171.27:235:06First Quarter10Sun
11Mon9:473.911:042.53:181.15:281.07:235:07First Quarter11Mon
12Tue10:324.04:031.36:320.77:225:08First Quarter12Tue
13Wed12:132.611:14 AM4.14:531.57:270.47:225:09Waxing Gibbous13Wed
14Thu1:132.611:54 AM4.15:451.78:140.37:225:10Waxing Gibbous14Thu
15Fri2:052.712:324.26:391.88:550.17:215:11Waxing Gibbous15Fri
16Sat2:512.81:084.27:321.89:330.17:215:12Waxing Gibbous16Sat
17Sun3:312.91:464.38:221.810:060.17:215:13Full Moon17Sun
18Mon4:063.02:264.39:101.710:380.17:205:14Full Moon18Mon
19Tue4:363.03:094.39:561.611:080.27:205:15Full Moon19Tue
20Wed5:033.23:554.310:421.411:370.27:195:16Waning Gibbous20Wed
21Thu5:303.34:454.111:301.37:195:18Waning Gibbous21Thu
22Fri5:593.65:393.912:070.312:231.27:185:19Waning Gibbous22Fri
23Sat6:343.86:403.512:390.51:251.17:175:20Waning Gibbous23Sat
24Sun7:154.07:543.11:150.72:391.17:175:21Third Quarter24Sun
25Mon8:044.19:202.81:570.93:590.97:165:22Third Quarter25Mon
26Tue9:004.210:472.62:471.25:170.77:155:23Third Quarter26Tue
27Wed10:024.33:461.46:270.47:155:24Waning Crescent27Wed
28Thu12:042.711:07 AM4.34:551.67:280.17:145:25Waning Crescent28Thu
29Fri1:102.812:074.36:091.78:21-0.17:135:26Waning Crescent29Fri
30Sat2:053.01:024.37:191.89:09-0.27:125:28Waning Crescent30Sat
31Sun2:543.21:534.38:211.79:51-0.27:115:29New Moon31Sun
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 transitional phase. Tonight's moon is 23% 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 shifting between spring and neap.

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 Waning Crescent (23% illuminated). This places Rio Vista, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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