Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Redwood City, CA.
Next low tide (tomorrow) : 4:05 am (0.6 ft)
Next high tide : in 1h 19m at 8:29 pm (8.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jul 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:126.210:218.44:540.64:242.95:528:34Waning Crescent1Sat
2Sun12:066.55:380.25:143.15:528:33Waning Crescent2Sun
3Mon12:556.86:19-0.36:023.15:538:33New Moon3Mon
4Tue1:407.06:59-0.66:483.15:538:33New Moon4Tue
5Wed12:208.82:237.27:38-0.97:343.05:548:33New Moon5Wed
6Thu1:028.83:057.38:16-1.08:202.95:548:33New Moon6Thu
7Fri1:468.83:457.58:56-1.19:082.85:558:32Waxing Crescent7Fri
8Sat2:348.64:257.69:37-0.99:592.65:558:32Waxing Crescent8Sat
9Sun3:278.25:067.810:20-0.610:552.45:568:32Waxing Crescent9Sun
10Mon4:267.75:518.011:06-0.111:592.25:578:31First Quarter10Mon
11Tue5:347.16:408.211:580.65:578:31First Quarter11Tue
12Wed6:536.67:328.51:091.812:561.25:588:30First Quarter12Wed
13Thu8:166.38:248.72:201.21:591.85:598:30First Quarter13Thu
14Fri9:346.49:169.03:270.53:022.35:598:30Waxing Gibbous14Fri
15Sat10:456.610:079.14:27-0.14:032.66:008:29Waxing Gibbous15Sat
16Sun11:476.910:579.15:22-0.65:022.76:018:28Waxing Gibbous16Sun
17Mon12:427.26:12-0.95:572.86:028:28Full Moon17Mon
18Tue1:317.46:58-1.16:472.86:028:27Full Moon18Tue
19Wed12:308.92:157.67:40-1.07:352.76:038:27Full Moon19Wed
20Thu1:148.72:567.68:20-0.88:212.76:048:26Full Moon20Thu
21Fri1:568.33:337.68:56-0.59:052.76:058:25Waning Gibbous21Fri
22Sat2:388.04:087.69:30-0.19:492.76:058:25Waning Gibbous22Sat
23Sun3:227.54:417.510:030.410:332.76:068:24Waning Gibbous23Sun
24Mon4:087.05:157.510:370.911:222.76:078:23Waning Gibbous24Mon
25Tue5:016.55:517.511:131.56:088:22Third Quarter25Tue
26Wed6:046.16:327.612:182.611:56 AM2.06:098:21Third Quarter26Wed
27Thu7:195.87:187.71:212.412:492.66:098:21Third Quarter27Thu
28Fri8:345.88:067.92:262.01:503.06:108:20Third Quarter28Fri
29Sat9:446.08:558.13:251.52:523.26:118:19Waning Crescent29Sat
30Sun10:466.39:438.34:180.93:523.36:128:18Waning Crescent30Sun
31Mon11:416.710:318.65:060.44:473.26:138:17Waning Crescent31Mon
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 12:17 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 72% 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 (72% 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