38.1450’ N, 121.6920’ W

Rio Vista, CA

95°
H 96°
L 67°
NW
6mph
Low tide
8:42 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Tuesday, September 8, 2026
The tide is currently falling in Rio Vista, CA.
Next low tide : in 5h 27m at 8:42 pm (1.4 ft)
Next high tide (tomorrow) : 2:11 am (4.0 ft)
Sunset today : 7:25 pm
Sunrise tomorrow : 6:42 am
Moon phase : Waning Crescent (7% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Mar 1893

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:083.52:224.08:591.49:570.26:376:00Full Moon1Wed
2Thu3:453.63:103.99:501.210:320.36:366:01Full Moon2Thu
3Fri4:193.63:593.810:371.111:030.56:346:02Full Moon3Fri
4Sat4:513.74:483.611:231.011:300.76:336:03Waning Gibbous4Sat
5Sun5:203.75:413.412:080.96:316:04Waning Gibbous5Sun
6Mon5:473.86:373.212:570.96:306:05Waning Gibbous6Mon
7Tue6:143.87:403.012:211.21:510.86:286:06Waning Gibbous7Tue
8Wed6:433.88:482.812:531.42:520.86:276:07Third Quarter8Wed
9Thu7:193.89:592.81:341.63:570.86:266:08Third Quarter9Thu
10Fri8:043.711:062.82:261.85:010.76:246:09Third Quarter10Fri
11Sat9:053.63:311.95:590.66:236:10Third Quarter11Sat
12Sun12:042.910:22 AM3.54:421.96:500.56:216:11Waning Crescent12Sun
13Mon12:513.111:33 AM3.55:501.87:350.56:196:12Waning Crescent13Mon
14Tue1:303.112:303.66:501.78:150.56:186:13Waning Crescent14Tue
15Wed2:033.21:203.67:441.58:510.56:166:14Waning Crescent15Wed
16Thu2:303.32:063.78:331.29:250.66:156:15New Moon16Thu
17Fri2:543.42:533.79:201.09:580.76:136:16New Moon17Fri
18Sat3:183.63:423.610:070.710:290.86:126:17New Moon18Sat
19Sun3:463.84:353.510:550.511:020.96:106:18New Moon19Sun
20Mon4:194.15:333.311:470.411:371.06:096:19Waxing Crescent20Mon
21Tue4:584.36:393.012:440.46:076:20Waxing Crescent21Tue
22Wed5:424.37:522.912:171.21:500.36:066:20Waxing Crescent22Wed
23Thu6:324.29:102.81:051.43:020.36:046:21First Quarter23Thu
24Fri7:304.110:252.92:071.64:140.36:036:22First Quarter24Fri
25Sat8:413.811:313.03:231.75:210.26:016:23First Quarter25Sat
26Sun10:053.64:431.76:200.15:596:24Waxing Gibbous26Sun
27Mon12:263.311:25 AM3.55:561.57:110.15:586:25Waxing Gibbous27Mon
28Tue1:123.512:313.57:021.37:570.25:566:26Waxing Gibbous28Tue
29Wed1:523.61:283.58:001.08:380.35:556:27Waxing Gibbous29Wed
30Thu2:273.72:193.48:530.89:150.55:536:28Full Moon30Thu
31Fri3:003.73:073.39:410.69:470.75:526:29Full Moon31Fri
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 7% 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 Waning Crescent (7% 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