38.1450’ N, 121.6920’ W

Rio Vista, CA

59°
H 80°
L 57°
WSW
12mph
Low tide
10:26 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 50m at 10:26 am (0.7 ft)
Next high tide : 3:54 pm (3.7 ft)
Sunset today : 6:57 pm
Sunrise tomorrow : 6:58 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Nov 1863

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:302.96:263.42:030.01:291.66:395:15Third Quarter1Sun
2Mon9:233.07:333.12:520.12:361.66:405:14Third Quarter2Mon
3Tue10:143.28:572.93:410.33:471.56:415:13Third Quarter3Tue
4Wed11:013.310:192.74:280.44:541.36:435:12Third Quarter4Wed
5Thu11:423.411:282.75:120.55:561.06:445:11Waning Crescent5Thu
6Fri12:163.55:520.76:520.76:455:10Waning Crescent6Fri
7Sat12:252.712:443.66:280.87:440.56:465:09Waning Crescent7Sat
8Sun1:152.71:063.77:020.98:310.36:475:08Waning Crescent8Sun
9Mon2:022.61:253.87:351.09:170.16:485:07New Moon9Mon
10Tue2:492.61:494.08:101.110:01-0.16:495:06New Moon10Tue
11Wed3:352.62:204.28:491.210:45-0.26:505:05New Moon11Wed
12Thu4:242.62:594.39:341.311:29-0.36:515:04New Moon12Thu
13Fri5:162.63:444.310:231.36:525:03Waxing Crescent13Fri
14Sat6:092.74:344.112:15-0.311:17 AM1.36:535:02Waxing Crescent14Sat
15Sun7:042.85:293.91:03-0.312:191.36:545:02Waxing Crescent15Sun
16Mon8:003.06:343.61:55-0.21:311.36:565:01First Quarter16Mon
17Tue8:573.27:563.22:48-0.12:501.36:575:00First Quarter17Tue
18Wed9:523.49:302.93:420.04:101.16:585:00First Quarter18Wed
19Thu10:433.710:542.84:350.25:240.86:594:59First Quarter19Thu
20Fri11:313.95:260.36:310.47:004:58Waxing Gibbous20Fri
21Sat12:052.712:144.16:140.57:320.17:014:58Waxing Gibbous21Sat
22Sun1:062.712:524.27:000.78:27-0.27:024:57Waxing Gibbous22Sun
23Mon2:022.71:284.37:440.99:17-0.47:034:57Full Moon23Mon
24Tue2:552.72:024.38:271.110:03-0.57:044:56Full Moon24Tue
25Wed3:482.72:354.29:101.310:46-0.57:054:56Full Moon25Wed
26Thu4:392.83:084.19:521.411:27-0.57:064:56Full Moon26Thu
27Fri5:302.83:444.010:341.57:074:55Waning Gibbous27Fri
28Sat6:182.94:233.912:05-0.411:19 AM1.57:084:55Waning Gibbous28Sat
29Sun7:053.05:063.712:42-0.212:071.67:094:55Waning Gibbous29Sun
30Mon7:513.15:543.41:18-0.11:021.67:104:54Waning Gibbous30Mon
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 spring phase. Tonight's moon is 100% 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 (100% 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