Tides Today & Tomorrow in Palo Alto, CA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Palo Alto, CA.
Next low tide : in 56m at 2:19 am (0.9 ft)
Next high tide : 7:09 am (5.0 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #9414525
Common Questions About Tides

Palo Alto, CA Tides - May 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:205.710:477.25:320.75:180.76:127:58Waxing Gibbous1Wed
2Thu11:175.711:177.36:160.55:580.96:107:59Waxing Gibbous2Thu
3Fri12:075.86:540.26:341.16:098:00Waxing Gibbous3Fri
4Sat12:525.87:280.07:091.36:088:01Full Moon4Sat
5Sun12:127.51:355.98:01-0.17:421.46:078:02Full Moon5Sun
6Mon12:407.62:165.98:33-0.28:161.66:068:03Full Moon6Mon
7Tue1:107.62:575.99:05-0.38:501.76:058:04Full Moon7Tue
8Wed1:427.53:395.89:39-0.49:271.86:048:05Waning Gibbous8Wed
9Thu2:177.44:245.810:16-0.410:081.96:038:06Waning Gibbous9Thu
10Fri2:557.25:115.810:57-0.310:572.06:028:06Waning Gibbous10Fri
11Sat3:396.96:015.911:43-0.311:592.06:018:07Waning Gibbous11Sat
12Sun4:316.56:526.012:34-0.16:008:08Third Quarter12Sun
13Mon5:356.17:416.31:141.81:290.06:008:09Third Quarter13Mon
14Tue6:525.88:276.82:321.62:270.25:598:10Third Quarter14Tue
15Wed8:145.79:117.33:401.23:240.45:588:11Third Quarter15Wed
16Thu9:335.79:527.84:380.74:190.65:578:12Waning Crescent16Thu
17Fri10:446.010:348.45:310.15:110.85:568:12Waning Crescent17Fri
18Sat11:496.211:178.86:21-0.46:021.05:568:13Waning Crescent18Sat
19Sun12:496.57:09-0.76:521.25:558:14New Moon19Sun
20Mon12:019.01:456.67:57-1.07:431.45:548:15New Moon20Mon
21Tue12:469.12:406.78:45-1.18:351.55:548:16New Moon21Tue
22Wed1:338.93:336.79:33-1.19:301.65:538:17Waxing Crescent22Wed
23Thu2:218.54:266.710:22-0.910:301.75:528:17Waxing Crescent23Thu
24Fri3:117.95:196.711:12-0.711:351.75:528:18Waxing Crescent24Fri
25Sat4:057.26:126.712:03-0.45:518:19Waxing Crescent25Sat
26Sun5:036.57:056.812:481.712:560.05:518:20First Quarter26Sun
27Mon6:105.87:546.92:031.51:510.35:508:20First Quarter27Mon
28Tue7:275.38:397.13:131.32:460.65:508:21First Quarter28Tue
29Wed8:475.09:197.24:141.03:390.95:498:22First Quarter29Wed
30Thu10:025.09:547.45:060.74:281.15:498:22Waxing Gibbous30Thu
31Fri11:065.210:277.65:510.45:131.45:498:23Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414525)

Common Questions About Palo Alto, CA Tides

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What time does the tide turn (slack tide) in Palo Alto, CA today?

Slack tide in Palo Alto, CA is approximately 4:44 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Palo Alto, CA?

Palo Alto, CA is currently in a neap phase. Tonight's moon is 53% 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 minimum.

What datum are Palo Alto, 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 Palo Alto, CA?

Tide predictions for Palo Alto, 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 Palo Alto, CA?

Tide data for Palo Alto, CA is sourced from NOAA Station #9414525. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414525.

What is the moon phase in Palo Alto, CA tonight?

Tonight the moon over Palo Alto, CA is First Quarter (53% illuminated). This places Palo Alto, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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