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 3h 01m 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 - Feb 1962

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:468.410:436.72:563.04:09-0.37:125:32Waning Crescent1Thu
2Fri9:398.711:327.13:542.84:57-0.97:115:33Waning Crescent2Fri
3Sat10:319.04:482.55:43-1.47:105:34New Moon3Sat
4Sun12:177.411:22 AM9.25:402.26:27-1.77:095:35New Moon4Sun
5Mon12:597.712:139.36:301.87:10-1.67:085:37New Moon5Mon
6Tue1:417.91:059.07:201.57:54-1.47:075:38Waxing Crescent6Tue
7Wed2:228.01:598.68:121.38:37-0.97:065:39Waxing Crescent7Wed
8Thu3:048.12:567.99:051.19:22-0.27:055:40Waxing Crescent8Thu
9Fri3:478.13:597.210:041.110:100.77:045:41Waxing Crescent9Fri
10Sat4:338.15:126.611:091.111:041.57:035:42First Quarter10Sat
11Sun5:268.06:326.212:211.07:025:43First Quarter11Sun
12Mon6:238.07:516.212:072.21:330.77:015:44First Quarter12Mon
13Tue7:238.09:016.41:142.62:380.37:005:45Waxing Gibbous13Tue
14Wed8:208.010:016.72:192.73:35-0.16:595:46Waxing Gibbous14Wed
15Thu9:138.110:507.03:192.74:24-0.36:585:47Waxing Gibbous15Thu
16Fri10:028.111:337.24:122.55:06-0.46:575:49Waxing Gibbous16Fri
17Sat10:458.14:592.35:44-0.46:555:50Full Moon17Sat
18Sun12:117.311:25 AM8.05:412.16:18-0.36:545:51Full Moon18Sun
19Mon12:457.312:037.96:212.06:49-0.16:535:52Full Moon19Mon
20Tue1:157.212:397.86:581.97:170.16:525:53Full Moon20Tue
21Wed1:427.21:167.57:331.87:450.46:505:54Waning Gibbous21Wed
22Thu2:067.21:537.28:081.78:120.86:495:55Waning Gibbous22Thu
23Fri2:297.22:346.88:441.78:421.26:485:56Waning Gibbous23Fri
24Sat2:537.33:226.49:231.79:171.76:465:57Waning Gibbous24Sat
25Sun3:247.34:216.010:101.710:002.26:455:58Third Quarter25Sun
26Mon4:047.35:395.711:111.610:572.86:445:59Third Quarter26Mon
27Tue4:577.47:045.712:261.46:426:00Third Quarter27Tue
28Wed6:037.48:196.012:113.11:390.96:416:01Third Quarter28Wed
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