38.1450’ N, 121.6920’ W

Rio Vista, CA

78°
H 82°
L 57°
W
9mph
High tide
5:48 pm

Tides Today & Tomorrow in Rio Vista, CA

TIDE TIMES for Sunday, September 13, 2026
The tide is currently rising in Rio Vista, CA.
Next low tide (tomorrow) : 1:05 am (0.7 ft)
Next high tide : in 3h 32m at 5:48 pm (4.0 ft)
Sunset today : 7:18 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9415316
Common Questions About Tides

Rio Vista, CA Tides - Aug 1885

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:073.47:073.91:031.51:080.65:097:16Waning Gibbous1Sat
2Sun7:083.17:464.02:031.51:480.85:107:15Third Quarter2Sun
3Mon8:322.88:344.13:181.42:351.05:117:14Third Quarter3Mon
4Tue10:072.79:294.24:371.23:301.25:127:13Third Quarter4Tue
5Wed11:282.710:294.35:490.94:321.45:137:11Waning Crescent5Wed
6Thu12:352.86:530.65:401.55:137:10Waning Crescent6Thu
7Fri1:322.97:490.36:501.55:147:09Waning Crescent7Fri
8Sat12:274.52:233.18:400.17:561.55:157:08Waning Crescent8Sat
9Sun1:224.53:113.39:270.08:581.45:167:07New Moon9Sun
10Mon2:154.53:563.410:100.09:551.35:177:06New Moon10Mon
11Tue3:084.44:403.610:510.010:511.25:187:05New Moon11Tue
12Wed4:014.25:233.811:300.111:451.15:197:03Waxing Crescent12Wed
13Thu4:563.96:063.912:080.35:207:02Waxing Crescent13Thu
14Fri5:553.66:504.012:411.112:450.55:207:01Waxing Crescent14Fri
15Sat6:583.47:354.01:411.11:240.85:217:00First Quarter15Sat
16Sun8:073.18:254.02:441.02:071.05:226:58First Quarter16Sun
17Mon9:192.99:194.03:510.92:561.35:236:57First Quarter17Mon
18Tue10:312.910:164.04:560.73:531.55:246:56First Quarter18Tue
19Wed11:373.011:114.05:570.54:531.65:256:54Waxing Gibbous19Wed
20Thu12:343.16:510.35:531.65:266:53Waxing Gibbous20Thu
21Fri12:024.01:243.37:390.26:491.65:276:52Waxing Gibbous21Fri
22Sat12:484.02:073.48:210.27:411.65:276:50Waxing Gibbous22Sat
23Sun1:294.02:463.48:590.28:291.55:286:49Full Moon23Sun
24Mon2:074.03:213.59:340.39:131.45:296:47Full Moon24Mon
25Tue2:423.93:513.510:060.39:551.45:306:46Full Moon25Tue
26Wed3:173.84:173.610:340.410:341.35:316:45Full Moon26Wed
27Thu3:523.74:393.711:010.511:131.25:326:43Waning Gibbous27Thu
28Fri4:303.65:033.811:280.611:531.25:336:42Waning Gibbous28Fri
29Sat5:143.55:324.011:590.75:346:40Waning Gibbous29Sat
30Sun6:063.36:104.112:411.112:350.95:346:39Waning Gibbous30Sun
31Mon7:133.06:564.11:401.11:181.05:356:37Third Quarter31Mon
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 8% 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 (8% 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