38.1450’ N, 121.6920’ W

Rio Vista, CA

69°
H -°
L 56°
WSW
12mph
Low tide
1:57 am

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 15, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 2h 22m at 1:57 am (0.6 ft)
Next high tide : 7:33 am (2.9 ft)
Sunset today : 7:16 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - May 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:473.72:582.69:190.18:261.35:167:04Full Moon1Mon
2Tue2:053.83:452.610:010.09:011.45:157:05Full Moon2Tue
3Wed2:253.94:322.710:42-0.19:391.45:147:06Full Moon3Wed
4Thu2:534.05:192.711:21-0.210:211.45:137:07Full Moon4Thu
5Fri3:294.06:062.812:00-0.35:127:08Waning Gibbous5Fri
6Sat4:124.06:522.912:40-0.35:117:09Waning Gibbous6Sat
7Sun5:013.97:403.01:24-0.25:107:10Waning Gibbous7Sun
8Mon5:553.78:293.212:561.42:12-0.15:097:11Third Quarter8Mon
9Tue6:583.59:193.32:021.33:040.05:087:12Third Quarter9Tue
10Wed8:143.110:093.53:171.23:570.15:077:12Third Quarter10Wed
11Thu9:462.910:573.74:331.04:500.35:067:13Third Quarter11Thu
12Fri11:122.711:424.05:460.75:420.55:057:14Waning Crescent12Fri
13Sat12:252.76:530.36:320.75:047:15Waning Crescent13Sat
14Sun12:244.11:302.67:560.07:220.95:037:16Waning Crescent14Sun
15Mon1:054.22:312.68:53-0.38:111.15:027:17New Moon15Mon
16Tue1:434.33:312.79:45-0.59:001.35:017:18New Moon16Tue
17Wed2:214.34:302.710:34-0.69:491.45:007:19New Moon17Wed
18Thu2:594.25:272.811:20-0.710:371.55:007:20New Moon18Thu
19Fri3:394.16:203.012:03-0.64:597:20Waxing Crescent19Fri
20Sat4:213.97:083.112:44-0.54:587:21Waxing Crescent20Sat
21Sun5:073.77:553.212:171.61:25-0.44:577:22Waxing Crescent21Sun
22Mon5:583.48:413.31:121.62:05-0.24:577:23Waxing Crescent22Mon
23Tue6:583.19:263.52:121.62:460.04:567:24First Quarter23Tue
24Wed8:122.810:113.63:171.43:270.34:557:24First Quarter24Wed
25Thu9:332.510:533.74:241.24:080.54:557:25First Quarter25Thu
26Fri10:502.411:323.75:291.04:480.74:547:26First Quarter26Fri
27Sat11:582.36:300.75:271.04:547:27Waxing Gibbous27Sat
28Sun12:063.812:592.37:260.46:061.24:537:28Waxing Gibbous28Sun
29Mon12:343.81:542.38:160.26:461.34:537:28Waxing Gibbous29Mon
30Tue12:573.92:452.49:030.07:291.54:527:29Waxing Gibbous30Tue
31Wed1:194.03:352.59:45-0.28:181.64:527:30Full Moon31Wed
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 14% 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 Waxing Crescent (14% 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