Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, July 19, 2026
The tide is currently falling in Redwood City, CA.
Next low tide : in 4h 17m at 10:55 am (0.6 ft)
Next high tide : 5:35 pm (8.2 ft)
Sunset today : 8:27 pm
Sunrise tomorrow : 6:02 am
Moon phase : First Quarter (33% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Apr 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:138.03:306.79:080.08:592.45:546:31Waning Gibbous1Fri
2Sat2:467.74:296.39:560.39:453.05:526:32Waning Gibbous2Sat
3Sun3:257.35:356.110:490.610:413.55:516:32Third Quarter3Sun
4Mon4:156.96:446.111:520.911:513.75:496:33Third Quarter4Mon
5Tue5:206.67:476.312:580.95:486:34Third Quarter5Tue
6Wed6:366.48:406.51:053.61:590.85:466:35Third Quarter6Wed
7Thu7:466.59:266.82:103.12:500.75:456:36Waning Crescent7Thu
8Fri8:466.710:057.03:052.63:350.55:446:37Waning Crescent8Fri
9Sat9:397.010:397.23:532.04:140.55:426:38Waning Crescent9Sat
10Sun10:277.111:097.44:361.54:500.55:416:39Waning Crescent10Sun
11Mon11:127.211:357.65:161.05:240.65:396:40New Moon11Mon
12Tue11:567.211:597.85:540.65:580.95:386:41New Moon12Tue
13Wed12:407.26:320.26:321.25:366:41New Moon13Wed
14Thu12:248.01:277.07:10-0.17:091.75:356:42New Moon14Thu
15Fri12:518.22:176.87:51-0.37:482.25:346:43Waxing Crescent15Fri
16Sat1:248.33:146.68:35-0.48:332.75:326:44Waxing Crescent16Sat
17Sun2:048.34:196.49:25-0.49:263.15:316:45Waxing Crescent17Sun
18Mon2:538.05:316.310:24-0.210:313.55:296:46First Quarter18Mon
19Tue3:547.76:446.411:33-0.111:503.55:286:47First Quarter19Tue
20Wed5:127.37:486.712:46-0.15:276:48First Quarter20Wed
21Thu6:397.28:427.21:093.11:53-0.25:256:49First Quarter21Thu
22Fri7:587.29:297.62:192.42:50-0.35:246:50Waxing Gibbous22Fri
23Sat9:067.410:108.03:201.53:41-0.25:236:50Waxing Gibbous23Sat
24Sun11:087.511:488.35:150.75:270.06:227:51Waxing Gibbous24Sun
25Mon12:047.56:050.06:100.46:207:52Full Moon25Mon
26Tue12:228.512:577.46:52-0.56:510.96:197:53Full Moon26Tue
27Wed12:548.51:487.37:37-0.87:311.56:187:54Full Moon27Wed
28Thu1:258.42:397.18:19-0.88:102.16:177:55Full Moon28Thu
29Fri1:548.33:306.99:01-0.78:502.76:157:56Waning Gibbous29Fri
30Sat2:258.04:216.79:41-0.59:323.16:147:57Waning Gibbous30Sat
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 2:15 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 33% 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 First Quarter (33% 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