38.1450’ N, 121.6920’ W

Rio Vista, CA

55°
H -°
L 42°
W
7mph
High tide
1:02 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Friday, November 6, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 7:19 am (0.5 ft)
Next high tide : in 1h 59m at 1:02 am (2.9 ft)
Sunset today : 5:03 pm
Sunrise tomorrow : 6:37 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1793

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:482.91:583.78:000.79:010.36:405:14Waning Crescent1Fri
2Sat2:312.92:183.78:300.89:440.26:415:13New Moon2Sat
3Sun3:142.82:343.88:591.010:240.16:435:12New Moon3Sun
4Mon3:572.82:563.99:311.011:040.06:445:11New Moon4Mon
5Tue4:422.73:274.010:061.111:450.06:455:10Waxing Crescent5Tue
6Wed5:312.74:064.110:471.26:465:09Waxing Crescent6Wed
7Thu6:242.74:514.012:29-0.111:34 AM1.36:475:08Waxing Crescent7Thu
8Fri7:212.85:433.91:170.012:301.36:485:07Waxing Crescent8Fri
9Sat8:202.96:433.62:110.01:381.46:495:06First Quarter9Sat
10Sun9:193.07:573.33:090.02:571.46:505:05First Quarter10Sun
11Mon10:163.29:323.14:070.14:191.26:515:04First Quarter11Mon
12Tue11:073.511:003.05:030.15:330.96:525:03Waxing Gibbous12Tue
13Wed11:543.75:550.26:400.66:535:03Waxing Gibbous13Wed
14Thu12:113.012:363.96:440.37:410.26:555:02Waxing Gibbous14Thu
15Fri1:123.01:154.17:310.48:380.06:565:01Waxing Gibbous15Fri
16Sat2:092.91:534.28:160.69:30-0.26:575:00Full Moon16Sat
17Sun3:032.92:294.29:000.810:20-0.36:585:00Full Moon17Sun
18Mon3:592.83:044.29:431.011:07-0.46:594:59Full Moon18Mon
19Tue4:552.83:404.110:261.211:52-0.47:004:59Waning Gibbous19Tue
20Wed5:512.84:184.011:091.47:014:58Waning Gibbous20Wed
21Thu6:472.95:003.812:36-0.311:56 AM1.57:024:57Waning Gibbous21Thu
22Fri7:413.05:473.61:20-0.212:491.67:034:57Waning Gibbous22Fri
23Sat8:343.16:433.32:06-0.11:491.67:044:56Third Quarter23Sat
24Sun9:263.27:553.02:520.12:571.67:054:56Third Quarter24Sun
25Mon10:163.39:182.83:390.24:061.47:064:56Third Quarter25Mon
26Tue11:023.510:352.74:250.45:121.27:074:55Third Quarter26Tue
27Wed11:433.611:412.65:090.56:130.97:084:55Waning Crescent27Wed
28Thu12:193.75:490.77:080.77:094:55Waning Crescent28Thu
29Fri12:372.612:483.76:270.87:580.47:104:54Waning Crescent29Fri
30Sat1:282.61:123.87:031.08:450.27:114:54Waning Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9415316)

Common Questions About Rio Vista, CA Tides

Collapse All
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 12% 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 Waning Crescent (12% 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