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 17m at 4:39 am (-0.4 ft)
Next high tide : 11:26 am (6.6 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 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:437.72:267.68:090.88:321.96:397:37Full Moon1Tue
2Wed2:227.42:457.78:341.29:061.76:407:36Waning Gibbous2Wed
3Thu3:027.03:037.89:001.89:411.66:417:34Waning Gibbous3Thu
4Fri3:476.63:268.09:292.310:191.66:427:33Waning Gibbous4Fri
5Sat4:396.23:568.010:022.911:051.66:437:31Waning Gibbous5Sat
6Sun5:475.84:368.010:443.56:447:30Third Quarter6Sun
7Mon7:135.75:317.812:061.611:42 AM4.06:447:28Third Quarter7Mon
8Tue8:375.86:427.81:241.41:044.36:457:27Third Quarter8Tue
9Wed9:456.28:017.92:411.02:284.26:467:25Waning Crescent9Wed
10Thu10:396.69:138.23:440.43:383.76:477:23Waning Crescent10Thu
11Fri11:247.010:188.64:38-0.14:373.16:487:22Waning Crescent11Fri
12Sat12:037.45:26-0.55:322.36:487:20Waning Crescent12Sat
13Sun12:387.96:09-0.76:231.56:497:19New Moon13Sun
14Mon12:128.91:128.36:51-0.67:130.86:507:17New Moon14Mon
15Tue1:068.81:458.77:31-0.28:020.36:517:16New Moon15Tue
16Wed2:018.52:199.08:110.48:52-0.16:527:14Waxing Crescent16Wed
17Thu2:588.02:549.18:521.29:44-0.26:537:13Waxing Crescent17Thu
18Fri3:597.43:339.09:352.010:39-0.16:537:11Waxing Crescent18Fri
19Sat5:056.94:178.710:222.811:400.26:547:10First Quarter19Sat
20Sun6:186.55:108.311:193.56:557:08First Quarter20Sun
21Mon7:356.46:177.812:490.512:293.96:567:06First Quarter21Mon
22Tue8:476.67:347.62:020.61:493.96:577:05First Quarter22Tue
23Wed9:476.88:477.53:080.53:013.66:587:03Waxing Gibbous23Wed
24Thu10:367.19:507.64:030.44:023.16:587:02Waxing Gibbous24Thu
25Fri11:177.410:437.64:490.44:542.56:597:00Waxing Gibbous25Fri
26Sat11:527.611:307.75:280.45:392.07:006:59Waxing Gibbous26Sat
27Sun12:227.76:030.66:201.67:016:57Full Moon27Sun
28Mon12:137.612:487.86:330.96:581.37:026:56Full Moon28Mon
29Tue12:547.51:107.97:021.37:331.17:036:54Full Moon29Tue
30Wed1:357.31:298.07:301.78:070.97:046:53Full Moon30Wed
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 8:02 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 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