38.1450’ N, 121.6920’ W

Rio Vista, CA

86°
H -°
L 56°
W
13mph
High tide
6:18 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:57 am (0.6 ft)
Next high tide : in 1h 29m at 6:18 pm (4.0 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 - Dec 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:063.37:572.92:330.12:551.57:114:54Third Quarter1Fri
2Sat9:533.59:182.73:160.34:051.37:124:54Third Quarter2Sat
3Sun10:393.610:352.64:000.55:121.07:134:54Third Quarter3Sun
4Mon11:213.711:432.54:430.76:140.77:144:54Waning Crescent4Mon
5Tue11:583.85:240.97:100.57:154:53Waning Crescent5Tue
6Wed12:422.512:313.96:041.18:010.27:164:53Waning Crescent6Wed
7Thu1:362.512:583.96:431.28:470.07:174:53Waning Crescent7Thu
8Fri2:252.51:204.07:231.39:29-0.17:184:54New Moon8Fri
9Sat3:112.61:444.18:041.410:09-0.27:194:54New Moon9Sat
10Sun3:542.62:154.18:481.510:46-0.27:194:54New Moon10Sun
11Mon4:362.72:524.29:351.511:23-0.27:204:54New Moon11Mon
12Tue5:172.83:364.210:231.411:59-0.27:214:54Waxing Crescent12Tue
13Wed5:562.94:244.111:131.47:224:54Waxing Crescent13Wed
14Thu6:373.15:183.912:37-0.212:091.37:224:54Waxing Crescent14Thu
15Fri7:213.26:183.61:180.01:131.37:234:55Waxing Crescent15Fri
16Sat8:083.57:323.22:020.12:271.27:244:55First Quarter16Sat
17Sun8:583.79:022.92:510.33:471.17:244:55First Quarter17Sun
18Mon9:503.910:302.73:420.55:040.87:254:56First Quarter18Mon
19Tue10:424.111:472.64:350.76:150.47:254:56Waxing Gibbous19Tue
20Wed11:314.35:290.97:190.17:264:57Waxing Gibbous20Wed
21Thu12:542.712:174.46:231.08:16-0.27:274:57Waxing Gibbous21Thu
22Fri1:542.71:014.57:181.29:08-0.47:274:58Waxing Gibbous22Fri
23Sat2:502.81:434.48:121.39:55-0.57:274:58Full Moon23Sat
24Sun3:422.92:244.49:041.410:38-0.57:284:59Full Moon24Sun
25Mon4:333.03:064.29:551.511:18-0.47:284:59Full Moon25Mon
26Tue5:203.13:504.110:441.511:55-0.37:295:00Waning Gibbous26Tue
27Wed6:043.24:353.911:331.67:295:01Waning Gibbous27Wed
28Thu6:473.35:253.612:31-0.112:231.57:295:01Waning Gibbous28Thu
29Fri7:293.46:213.41:040.11:181.57:305:02Waning Gibbous29Fri
30Sat8:113.57:273.01:370.42:201.57:305:03Third Quarter30Sat
31Sun8:543.68:462.82:110.63:281.47:305:04Third Quarter31Sun
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