38.1450’ N, 121.6920’ W

Rio Vista, CA

85°
H -°
L 56°
WSW
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 52m 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 - Nov 1882

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:543.07:133.32:33-0.12:131.56:405:14Third Quarter1Wed
2Thu9:493.28:333.03:250.03:241.56:415:13Third Quarter2Thu
3Fri10:403.49:552.94:160.24:331.36:425:12Third Quarter3Fri
4Sat11:263.511:072.85:040.35:381.06:435:11Third Quarter4Sat
5Sun12:073.75:480.46:360.76:445:10Waning Crescent5Sun
6Mon12:092.812:433.86:280.67:290.46:455:09Waning Crescent6Mon
7Tue1:022.81:143.87:040.88:180.26:465:08Waning Crescent7Tue
8Wed1:512.71:403.87:370.99:030.16:475:07Waning Crescent8Wed
9Thu2:382.72:013.98:091.19:460.06:485:06New Moon9Thu
10Fri3:232.62:193.98:401.210:26-0.16:495:05New Moon10Fri
11Sat4:082.62:414.09:151.311:04-0.16:505:05New Moon11Sat
12Sun4:532.63:124.09:531.311:42-0.16:525:04New Moon12Sun
13Mon5:382.63:514.010:361.46:535:03Waxing Crescent13Mon
14Tue6:242.74:364.012:21-0.111:23 AM1.46:545:02Waxing Crescent14Tue
15Wed7:122.85:263.81:03-0.112:171.46:555:01Waxing Crescent15Wed
16Thu8:012.96:253.51:480.01:211.46:565:01First Quarter16Thu
17Fri8:523.17:363.22:390.12:371.36:575:00First Quarter17Fri
18Sat9:423.39:073.03:320.23:571.16:584:59First Quarter18Sat
19Sun10:313.510:392.84:250.35:140.86:594:59First Quarter19Sun
20Mon11:183.811:552.85:160.46:230.57:004:58Waxing Gibbous20Mon
21Tue12:014.06:060.67:260.17:014:58Waxing Gibbous21Tue
22Wed1:002.712:424.26:550.78:25-0.27:024:57Waxing Gibbous22Wed
23Thu1:592.71:224.47:430.99:19-0.47:034:57Full Moon23Thu
24Fri2:562.72:014.48:311.110:09-0.57:044:56Full Moon24Fri
25Sat3:532.72:414.39:201.210:56-0.67:054:56Full Moon25Sat
26Sun4:492.83:214.210:091.311:41-0.67:064:55Waning Gibbous26Sun
27Mon5:452.84:044.110:591.47:074:55Waning Gibbous27Mon
28Tue6:373.04:503.812:25-0.511:50 AM1.57:084:55Waning Gibbous28Tue
29Wed7:283.15:413.51:07-0.312:461.67:094:54Waning Gibbous29Wed
30Thu8:173.26:423.21:50-0.11:481.57:104:54Third Quarter30Thu
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