Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently falling in Redwood City, CA.
Next low tide : in 28m at 4:15 pm (3.7 ft)
Next high tide : 9:59 pm (9.1 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Sep 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:577.010:508.45:150.05:103.16:397:37Waning Crescent1Wed
2Thu12:327.35:55-0.35:582.56:407:36New Moon2Thu
3Fri1:037.66:33-0.56:441.96:417:34New Moon3Fri
4Sat12:308.71:338.07:10-0.47:291.36:427:33New Moon4Sat
5Sun1:198.62:028.47:46-0.18:160.86:437:31New Moon5Sun
6Mon2:108.32:328.78:240.49:040.56:437:30Waxing Crescent6Mon
7Tue3:057.83:068.99:031.19:550.36:447:28Waxing Crescent7Tue
8Wed4:057.23:449.09:451.910:520.36:457:27Waxing Crescent8Wed
9Thu5:146.74:308.810:332.711:570.46:467:25First Quarter9Thu
10Fri6:346.35:278.511:323.56:477:24First Quarter10Fri
11Sat7:596.26:398.21:120.512:483.96:477:22First Quarter11Sat
12Sun9:146.58:008.02:280.42:103.96:487:21First Quarter12Sun
13Mon10:156.99:138.03:340.13:233.56:497:19Waxing Gibbous13Mon
14Tue11:057.310:168.14:30-0.14:262.96:507:18Waxing Gibbous14Tue
15Wed11:467.611:118.15:17-0.25:202.36:517:16Waxing Gibbous15Wed
16Thu12:227.85:58-0.16:071.86:527:15Full Moon16Thu
17Fri12:547.96:340.26:511.56:527:13Full Moon17Fri
18Sat12:447.91:218.07:060.67:311.26:537:12Full Moon18Sat
19Sun1:267.71:458.07:371.18:081.06:547:10Full Moon19Sun
20Mon2:087.42:068.08:061.78:441.06:557:08Waning Gibbous20Mon
21Tue2:527.02:268.08:342.29:191.06:567:07Waning Gibbous21Tue
22Wed3:386.72:498.09:042.89:541.16:577:05Waning Gibbous22Wed
23Thu4:286.43:177.99:383.310:341.26:577:04Waning Gibbous23Thu
24Fri5:276.13:557.810:183.811:231.46:587:02Third Quarter24Fri
25Sat6:375.94:457.511:124.16:597:01Third Quarter25Sat
26Sun7:515.95:517.312:291.412:254.37:006:59Third Quarter26Sun
27Mon8:556.27:127.21:431.31:464.27:016:58Third Quarter27Mon
28Tue9:476.58:277.42:491.02:563.77:026:56Waning Crescent28Tue
29Wed10:306.99:337.73:430.63:553.17:036:55Waning Crescent29Wed
30Thu11:077.310:328.04:300.34:472.37:036:53Waning Crescent30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414523)

Common Questions About Redwood City, CA Tides

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What time does the tide turn (slack tide) in Redwood City, CA today?

Slack tide in Redwood City, CA is approximately 7:07 pm — 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 Redwood City, CA?

Redwood City, CA is currently in a spring phase. Tonight's moon is 12% 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 Redwood City, 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 Redwood City, CA?

Tide predictions for Redwood City, 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 Redwood City, CA?

Tide data for Redwood City, CA is sourced from NOAA Station #9414523. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414523.

What is the moon phase in Redwood City, CA tonight?

Tonight the moon over Redwood City, CA is Waning Crescent (12% illuminated). This places Redwood City, 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