Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 11:52 pm (1.7 ft)
Next high tide : in 5h 24m at 4:56 pm (8.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Apr 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:097.910:277.63:231.93:59-0.65:546:31Waning Crescent1Sun
2Mon10:118.211:078.04:191.14:47-0.75:526:32Waning Crescent2Mon
3Tue11:088.311:468.45:110.45:33-0.65:516:33New Moon3Tue
4Wed12:038.36:01-0.26:17-0.25:496:33New Moon4Wed
5Thu12:248.612:588.16:50-0.67:010.35:486:34New Moon5Thu
6Fri1:028.61:537.87:39-0.87:450.95:466:35Waxing Crescent6Fri
7Sat1:408.62:507.48:29-0.88:311.55:456:36Waxing Crescent7Sat
8Sun2:218.33:507.09:20-0.59:202.25:436:37Waxing Crescent8Sun
9Mon3:057.94:536.710:14-0.110:152.75:426:38Waxing Crescent9Mon
10Tue3:567.56:006.511:130.211:203.15:416:39First Quarter10Tue
11Wed4:577.07:066.612:190.55:396:40First Quarter11Wed
12Thu6:086.78:046.812:323.11:230.65:386:41First Quarter12Thu
13Fri7:206.68:547.01:412.82:200.65:366:42First Quarter13Fri
14Sat8:236.79:377.32:402.33:080.65:356:42Waxing Gibbous14Sat
15Sun9:196.810:157.53:321.83:510.65:336:43Waxing Gibbous15Sun
16Mon10:086.910:487.64:171.34:290.85:326:44Waxing Gibbous16Mon
17Tue10:547.011:177.64:590.95:030.95:316:45Waxing Gibbous17Tue
18Wed11:387.111:437.75:370.55:371.25:296:46Full Moon18Wed
19Thu12:197.06:140.36:091.55:286:47Full Moon19Thu
20Fri12:067.71:016.96:480.16:421.85:276:48Full Moon20Fri
21Sat12:287.81:446.87:230.07:162.15:256:49Full Moon21Sat
22Sun12:537.92:296.77:58-0.17:532.55:246:50Waning Gibbous22Sun
23Mon1:237.93:186.58:36-0.18:352.85:236:51Waning Gibbous23Mon
24Tue2:017.94:146.49:20-0.19:253.15:216:51Waning Gibbous24Tue
25Wed2:497.75:176.310:120.010:273.35:206:52Third Quarter25Wed
26Thu3:487.46:246.411:160.111:423.35:196:53Third Quarter26Thu
27Fri5:037.17:246.812:260.15:186:54Third Quarter27Fri
28Sat6:287.08:187.212:592.91:320.05:176:55Third Quarter28Sat
29Sun8:477.110:057.73:082.23:310.06:157:56Waning Crescent29Sun
30Mon9:587.310:498.14:101.34:250.06:147:57Waning Crescent30Mon
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 8:24 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 transitional phase. Tonight's moon is 64% 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 Third Quarter (64% 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