38.1450’ N, 121.6920’ W

Rio Vista, CA

73°
H 82°
L 57°
W
8mph
High tide
3:54 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Saturday, September 26, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide : 10:57 pm (0.7 ft)
Next high tide : in 4h 40m at 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 - May 1863

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:103.72:192.68:470.27:531.25:177:04Waxing Gibbous1Fri
2Sat1:323.83:112.69:350.08:351.35:167:05Full Moon2Sat
3Sun2:024.04:032.710:21-0.29:201.45:147:06Full Moon3Sun
4Mon2:404.24:572.711:07-0.410:091.45:137:07Full Moon4Mon
5Tue3:234.25:522.811:53-0.511:021.45:127:08Waning Gibbous5Tue
6Wed4:114.26:472.912:41-0.55:117:08Waning Gibbous6Wed
7Thu5:044.07:413.112:001.41:31-0.45:107:09Waning Gibbous7Thu
8Fri6:033.78:353.21:041.42:23-0.35:097:10Third Quarter8Fri
9Sat7:133.49:283.42:151.33:16-0.25:087:11Third Quarter9Sat
10Sun8:383.010:203.73:311.24:090.05:077:12Third Quarter10Sun
11Mon10:062.811:093.94:450.95:010.25:067:13Third Quarter11Mon
12Tue11:252.711:544.05:550.65:500.45:057:14Waning Crescent12Tue
13Wed12:332.66:590.36:380.65:047:15Waning Crescent13Wed
14Thu12:344.11:332.67:580.07:230.95:037:16Waning Crescent14Thu
15Fri1:114.22:302.68:51-0.28:071.15:027:17New Moon15Fri
16Sat1:454.23:252.69:39-0.48:501.35:017:17New Moon16Sat
17Sun2:174.14:192.710:24-0.59:311.55:017:18New Moon17Sun
18Mon2:484.15:112.811:05-0.510:131.65:007:19New Moon18Mon
19Tue3:214.06:002.911:44-0.510:561.64:597:20Waxing Crescent19Tue
20Wed3:563.96:463.012:20-0.44:587:21Waxing Crescent20Wed
21Thu4:353.87:303.112:56-0.34:587:22Waxing Crescent21Thu
22Fri5:183.68:133.212:311.61:30-0.24:577:23Waxing Crescent22Fri
23Sat6:063.38:563.31:251.62:050.04:567:23Waxing Crescent23Sat
24Sun7:013.09:373.32:251.52:400.24:567:24First Quarter24Sun
25Mon8:092.710:173.43:311.43:180.44:557:25First Quarter25Mon
26Tue9:342.510:513.54:381.23:570.64:547:26First Quarter26Tue
27Wed10:572.311:213.65:431.04:370.84:547:26Waxing Gibbous27Wed
28Thu12:072.36:430.75:181.04:537:27Waxing Gibbous28Thu
29Fri1:092.37:400.46:021.24:537:28Waxing Gibbous29Fri
30Sat12:184.02:072.38:330.16:521.44:527:29Waxing Gibbous30Sat
31Sun12:524.23:032.49:22-0.27:491.54:527:29Full 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 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