38.1450’ N, 121.6920’ W

Rio Vista, CA

78°
H -°
L 57°
WSW
10mph
Low tide
10:57 pm

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 17m at 10:57 pm (0.7 ft)
Next high tide (tomorrow) : 4:28 am (3.3 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 - Dec 1862

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:554.15:450.67:150.27:114:54Waxing Gibbous1Mon
2Tue12:492.612:324.26:290.88:08-0.17:124:54Waxing Gibbous2Tue
3Wed1:442.61:064.27:111.08:56-0.37:134:54Waxing Gibbous3Wed
4Thu2:362.61:384.27:521.29:40-0.47:144:54Full Moon4Thu
5Fri3:262.72:084.28:331.410:20-0.47:154:54Full Moon5Fri
6Sat4:152.72:384.29:141.510:57-0.47:164:53Full Moon6Sat
7Sun5:012.83:104.19:561.511:32-0.37:174:53Full Moon7Sun
8Mon5:452.93:454.010:391.67:184:54Waning Gibbous8Mon
9Tue6:272.94:243.912:04-0.211:23 AM1.67:184:54Waning Gibbous9Tue
10Wed7:063.05:073.712:35-0.112:111.67:194:54Waning Gibbous10Wed
11Thu7:443.15:553.51:040.11:031.57:204:54Waning Gibbous11Thu
12Fri8:203.26:503.21:360.22:031.57:214:54Third Quarter12Fri
13Sat8:563.37:582.92:110.43:111.47:224:54Third Quarter13Sat
14Sun9:313.49:262.62:510.64:241.27:224:54Third Quarter14Sun
15Mon10:073.610:522.53:350.75:340.97:234:55Third Quarter15Mon
16Tue10:453.84:210.96:390.67:244:55Waning Crescent16Tue
17Wed12:052.511:26 AM4.15:091.17:390.27:244:55Waning Crescent17Wed
18Thu1:092.512:094.36:001.38:34-0.17:254:56Waning Crescent18Thu
19Fri2:062.512:554.56:571.49:25-0.37:254:56New Moon19Fri
20Sat3:012.61:424.57:591.510:13-0.57:264:57New Moon20Sat
21Sun3:542.72:324.59:031.510:59-0.57:264:57New Moon21Sun
22Mon4:462.83:234.410:051.511:43-0.57:274:58Waxing Crescent22Mon
23Tue5:363.04:184.111:061.47:274:58Waxing Crescent23Tue
24Wed6:253.25:163.812:26-0.412:081.47:284:59Waxing Crescent24Wed
25Thu7:143.46:223.51:09-0.21:131.47:284:59Waxing Crescent25Thu
26Fri8:023.67:363.11:520.02:231.37:295:00First Quarter26Fri
27Sat8:523.88:572.82:370.33:371.27:295:01First Quarter27Sat
28Sun9:413.910:172.63:230.64:500.97:295:01First Quarter28Sun
29Mon10:304.111:302.64:110.85:580.67:305:02First Quarter29Mon
30Tue11:154.24:591.16:580.37:305:03Waxing Gibbous30Tue
31Wed12:352.711:58 AM4.25:481.37:480.17:305:04Waxing Gibbous31Wed
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