Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Wednesday, August 12, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 7:08 pm (2.2 ft)
Next high tide : in 4h 49m at 1:44 pm (7.8 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:22 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Feb 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:488.510:086.41:553.23:26-0.37:125:32Waxing Gibbous1Sat
2Sun8:498.811:066.83:043.34:24-1.07:115:33Waxing Gibbous2Sun
3Mon9:499.111:567.24:073.15:15-1.57:115:34Waxing Gibbous3Mon
4Tue10:469.35:052.76:03-1.87:105:35Full Moon4Tue
5Wed12:427.511:40 AM9.35:582.36:47-1.87:095:36Full Moon5Wed
6Thu1:247.612:319.06:482.07:29-1.57:085:37Full Moon6Thu
7Fri2:047.71:218.67:381.78:09-1.07:075:38Waning Gibbous7Fri
8Sat2:427.82:128.08:281.58:47-0.37:065:40Waning Gibbous8Sat
9Sun3:187.83:057.39:181.59:240.57:055:41Waning Gibbous9Sun
10Mon3:537.74:026.610:121.510:041.37:045:42Waning Gibbous10Mon
11Tue4:317.65:096.011:111.510:482.27:035:43Third Quarter11Tue
12Wed5:127.56:265.712:171.47:025:44Third Quarter12Wed
13Thu6:007.47:445.71:261.27:005:45Third Quarter13Thu
14Fri6:557.48:546.012:493.42:280.96:595:46Third Quarter14Fri
15Sat7:507.49:536.31:563.63:220.56:585:47Waning Crescent15Sat
16Sun8:447.610:416.62:573.54:090.16:575:48Waning Crescent16Sun
17Mon9:337.711:236.83:503.34:51-0.16:565:49Waning Crescent17Mon
18Tue10:197.94:373.05:27-0.36:555:50Waning Crescent18Tue
19Wed12:006.911:00 AM8.05:192.76:00-0.56:535:51New Moon19Wed
20Thu12:337.011:39 AM8.15:582.46:32-0.56:525:52New Moon20Thu
21Fri1:027.112:168.16:352.17:02-0.46:515:53New Moon21Fri
22Sat1:287.212:557.97:131.87:32-0.26:505:54New Moon22Sat
23Sun1:527.31:367.67:511.68:040.26:485:55Waxing Crescent23Sun
24Mon2:177.62:237.28:321.48:390.86:475:56Waxing Crescent24Mon
25Tue2:457.83:186.69:191.29:181.56:465:58Waxing Crescent25Tue
26Wed3:217.94:296.010:151.110:052.36:445:59First Quarter26Wed
27Thu4:068.06:015.711:261.011:083.06:436:00First Quarter27Thu
28Fri5:047.97:355.812:470.76:426:01First Quarter28Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414523)

Common Questions About Redwood City, CA Tides

Show All
What time does the tide turn (slack tide) in Redwood City, CA today?

Slack tide in Redwood City, CA is approximately 4:26 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 0% 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 New Moon (0% 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