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 57m at 3:58 pm (3.8 ft)
Next high tide : 9:42 pm (7.8 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Apr 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:558.02:066.77:470.17:422.05:546:31Waxing Crescent1Tue
2Wed1:238.23:006.48:280.08:212.65:536:31Waxing Crescent2Wed
3Thu1:588.34:056.19:15-0.19:083.25:516:32Waxing Crescent3Thu
4Fri2:428.15:225.910:130.110:083.65:506:33First Quarter4Fri
5Sat3:387.86:445.911:250.111:283.85:486:34First Quarter5Sat
6Sun4:517.57:536.312:440.15:476:35First Quarter6Sun
7Mon6:207.38:506.712:543.61:54-0.25:456:36First Quarter7Mon
8Tue7:447.49:377.22:082.92:54-0.55:446:37Waxing Gibbous8Tue
9Wed8:557.610:187.63:112.13:45-0.65:426:38Waxing Gibbous9Wed
10Thu9:587.810:558.04:081.24:31-0.45:416:39Waxing Gibbous10Thu
11Fri10:557.811:298.34:590.45:13-0.15:396:39Full Moon11Fri
12Sat11:487.75:47-0.25:520.45:386:40Full Moon12Sat
13Sun12:008.512:407.56:33-0.66:311.15:376:41Full Moon13Sun
14Mon12:308.51:327.27:18-0.87:091.85:356:42Full Moon14Mon
15Tue1:008.42:256.98:01-0.77:482.45:346:43Waning Gibbous15Tue
16Wed1:308.23:196.68:44-0.58:303.05:326:44Waning Gibbous16Wed
17Thu2:037.94:166.39:29-0.19:163.55:316:45Waning Gibbous17Thu
18Fri2:427.45:176.210:170.310:113.85:306:46Waning Gibbous18Fri
19Sat3:307.06:216.111:140.611:193.95:286:47Third Quarter19Sat
20Sun4:356.57:206.212:180.95:276:48Third Quarter20Sun
21Mon5:556.28:106.512:353.71:200.95:266:49Third Quarter21Mon
22Tue7:126.28:536.71:433.22:120.85:246:49Third Quarter22Tue
23Wed8:186.39:307.02:402.62:570.85:236:50Waning Crescent23Wed
24Thu9:156.510:027.33:292.03:370.95:226:51Waning Crescent24Thu
25Fri10:076.710:317.64:141.34:141.05:216:52Waning Crescent25Fri
26Sat10:566.810:567.94:550.74:501.35:196:53Waning Crescent26Sat
27Sun11:456.811:208.15:350.25:261.75:186:54New Moon27Sun
28Mon12:336.86:13-0.36:032.15:176:55New Moon28Mon
29Tue1:246.86:53-0.66:422.55:166:56New Moon29Tue
30Wed12:168.62:186.77:34-0.97:253.05:146:57Waxing Crescent30Wed
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 6:50 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 82% 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 Waxing Gibbous (82% 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