38.1450’ N, 121.6920’ W

Rio Vista, CA

62°
H -°
L 57°
WSW
12mph
High tide
6:32 am

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 : 12:29 pm (1.0 ft)
Next high tide : in 4h 27m at 6:32 am (3.1 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 - May 1884

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:253.49:463.42:271.33:26-0.15:096:58First Quarter1Thu
2Fri8:433.110:403.63:371.24:210.05:076:59First Quarter2Fri
3Sat10:032.911:293.84:471.05:130.25:067:00First Quarter3Sat
4Sun11:162.85:530.86:020.45:057:00Waxing Gibbous4Sun
5Mon12:133.912:202.86:530.56:480.55:047:01Waxing Gibbous5Mon
6Tue12:523.91:172.87:480.27:300.85:037:02Waxing Gibbous6Tue
7Wed1:274.02:102.88:390.08:091.05:027:03Waxing Gibbous7Wed
8Thu1:594.03:012.89:25-0.28:461.15:017:04Full Moon8Thu
9Fri2:273.93:512.810:09-0.39:211.35:007:05Full Moon9Fri
10Sat2:533.94:402.810:49-0.39:561.44:597:06Full Moon10Sat
11Sun3:173.95:282.811:28-0.310:341.54:587:07Full Moon11Sun
12Mon3:433.86:152.912:05-0.34:577:08Waning Gibbous12Mon
13Tue4:163.87:003.012:40-0.24:567:09Waning Gibbous13Tue
14Wed4:543.77:443.11:16-0.14:557:09Waning Gibbous14Wed
15Thu5:373.58:283.112:481.51:540.04:557:10Waning Gibbous15Thu
16Fri6:273.39:113.21:431.52:350.14:547:11Third Quarter16Fri
17Sat7:263.09:523.32:471.53:200.34:537:12Third Quarter17Sat
18Sun8:402.810:323.53:561.34:070.44:527:13Third Quarter18Sun
19Mon10:142.611:103.65:071.14:560.64:517:14Third Quarter19Mon
20Tue11:382.511:483.86:140.85:450.74:517:15Waning Crescent20Tue
21Wed12:472.57:170.46:350.94:507:15Waning Crescent21Wed
22Thu12:254.01:502.68:160.17:271.14:497:16Waning Crescent22Thu
23Fri1:054.22:502.69:11-0.28:221.24:497:17New Moon23Fri
24Sat1:474.33:512.710:03-0.49:171.34:487:18New Moon24Sat
25Sun2:314.44:512.810:53-0.610:131.44:477:19New Moon25Sun
26Mon3:184.35:492.911:41-0.711:091.44:477:19Waxing Crescent26Mon
27Tue4:084.26:443.112:28-0.64:467:20Waxing Crescent27Tue
28Wed5:023.97:363.312:071.41:14-0.54:467:21Waxing Crescent28Wed
29Thu6:003.68:273.51:081.42:01-0.44:457:22Waxing Crescent29Thu
30Fri7:073.39:173.62:131.32:49-0.24:457:22First Quarter30Fri
31Sat8:222.910:063.83:211.23:370.14:457:23First Quarter31Sat
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