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 5h 27m at 4:39 am (-0.4 ft)
Next high tide : 11:26 am (6.6 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:19 am
Moon phase : Waning Crescent (21% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - May 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:258.33:456.58:52-0.78:423.36:137:58Waning Gibbous1Fri
2Sat2:038.34:356.49:34-0.79:293.56:127:59Waning Gibbous2Sat
3Sun2:478.15:286.310:20-0.610:233.56:118:00Waning Gibbous3Sun
4Mon3:417.86:246.411:13-0.411:273.56:098:01Third Quarter4Mon
5Tue4:467.47:206.612:12-0.26:088:02Third Quarter5Tue
6Wed6:047.08:117.012:423.21:150.06:078:02Third Quarter6Wed
7Thu7:306.78:587.51:582.62:150.26:068:03Third Quarter7Thu
8Fri8:506.79:408.03:061.73:110.56:058:04Waning Crescent8Fri
9Sat10:026.710:208.54:070.74:030.96:048:05Waning Crescent9Sat
10Sun11:106.810:598.95:03-0.24:531.46:038:06Waning Crescent10Sun
11Mon12:136.95:56-0.95:431.86:028:07New Moon11Mon
12Tue1:117.06:45-1.46:312.36:018:08New Moon12Tue
13Wed12:179.12:087.07:33-1.67:192.76:018:09New Moon13Wed
14Thu12:579.03:027.08:20-1.58:073.06:008:10New Moon14Thu
15Fri1:388.73:547.09:05-1.38:573.25:598:10Waxing Crescent15Fri
16Sat2:218.24:436.99:49-0.99:483.35:588:11Waxing Crescent16Sat
17Sun3:087.75:326.810:34-0.410:423.45:578:12Waxing Crescent17Sun
18Mon4:007.26:216.711:190.111:413.35:568:13First Quarter18Mon
19Tue4:596.67:096.812:060.55:568:14First Quarter19Tue
20Wed6:076.27:547.012:463.112:561.05:558:15First Quarter20Wed
21Thu7:215.88:357.21:532.71:471.45:548:15First Quarter21Thu
22Fri8:325.79:127.52:542.12:351.75:548:16First Quarter22Fri
23Sat9:385.89:457.73:481.43:212.15:538:17Waxing Gibbous23Sat
24Sun10:406.010:178.04:360.84:052.55:528:18Waxing Gibbous24Sun
25Mon11:376.210:488.15:210.24:502.85:528:19Waxing Gibbous25Mon
26Tue12:306.46:02-0.25:343.15:518:19Waxing Gibbous26Tue
27Wed1:196.56:42-0.66:183.35:518:20Full Moon27Wed
28Thu2:076.77:21-0.97:023.55:508:21Full Moon28Thu
29Fri12:288.62:546.88:00-1.17:473.55:508:22Full Moon29Fri
30Sat1:088.63:396.88:41-1.28:343.55:498:22Waning Gibbous30Sat
31Sun1:538.54:236.99:23-1.29:243.45:498:23Waning Gibbous31Sun
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 transitional phase. Tonight's moon is 21% 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 Waning Crescent (21% 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