Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, August 23, 2026
The tide is currently falling in Redwood City, CA.
Next low tide : in 7h 19m at 4:22 am (0.7 ft)
Next high tide : 10:57 am (6.6 ft)
Sunset today : 7:52 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (74% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Oct 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:116.41:588.18:223.39:131.06:035:53Waning Gibbous1Thu
2Fri4:106.12:378.09:033.710:041.06:045:52Waning Gibbous2Fri
3Sat5:235.93:287.89:574.111:111.16:055:50Third Quarter3Sat
4Sun6:415.94:367.611:114.36:065:49Third Quarter4Sun
5Mon7:486.26:007.512:290.912:384.26:075:47Third Quarter5Mon
6Tue8:426.67:227.71:400.61:523.66:085:46Waning Crescent6Tue
7Wed9:267.18:338.02:380.22:552.86:095:44Waning Crescent7Wed
8Thu10:057.69:378.23:29-0.13:511.96:095:43Waning Crescent8Thu
9Fri10:418.110:378.34:16-0.14:431.06:105:41Waning Crescent9Fri
10Sat11:158.611:348.34:590.15:340.26:115:40New Moon10Sat
11Sun11:489.05:410.56:23-0.46:125:38New Moon11Sun
12Mon12:308.112:229.36:231.17:12-0.86:135:37New Moon12Mon
13Tue1:287.812:589.37:061.88:02-0.96:145:35Waxing Crescent13Tue
14Wed2:277.41:379.27:512.58:53-0.76:155:34Waxing Crescent14Wed
15Thu3:297.12:208.88:403.19:48-0.46:165:33Waxing Crescent15Thu
16Fri4:356.83:118.39:353.610:480.16:175:31First Quarter16Fri
17Sat5:436.64:147.710:403.911:550.46:185:30First Quarter17Sat
18Sun6:516.75:307.211:573.96:195:29First Quarter18Sun
19Mon7:506.96:507.01:020.61:133.56:205:27First Quarter19Mon
20Tue8:397.28:006.92:000.72:183.06:215:26Waxing Gibbous20Tue
21Wed9:207.48:597.02:490.73:122.36:225:25Waxing Gibbous21Wed
22Thu9:567.79:517.13:310.94:001.76:235:23Waxing Gibbous22Thu
23Fri10:267.910:397.14:081.14:431.26:245:22Waxing Gibbous23Fri
24Sat10:538.011:257.14:421.45:220.86:255:21Full Moon24Sat
25Sun11:168.15:141.85:580.56:265:19Full Moon25Sun
26Mon12:097.011:37 AM8.25:462.36:320.36:275:18Full Moon26Mon
27Tue12:536.911:58 AM8.36:172.77:050.26:285:17Full Moon27Tue
28Wed1:386.812:218.36:503.17:380.16:295:16Waning Gibbous28Wed
29Thu2:246.612:508.47:253.58:140.16:305:15Waning Gibbous29Thu
30Fri3:146.41:258.38:053.88:550.26:315:14Waning Gibbous30Fri
31Sat4:096.32:108.18:524.09:440.36:325:12Waning Gibbous31Sat
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 7:39 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 transitional phase. Tonight's moon is 74% 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 shifting between spring and neap.

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 Waxing Gibbous (74% illuminated). This places Redwood City, CA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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