Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 9:38 am (-0.9 ft)
Next high tide : in 4h 56m at 2:44 am (8.6 ft)
Sunset today : 8:29 pm
Sunrise tomorrow : 6:00 am
Moon phase : Waxing Crescent (8% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jun 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:048.83:047.28:22-1.38:172.95:488:25New Moon1Fri
2Sat1:468.43:507.29:04-1.09:052.95:488:25Waxing Crescent2Sat
3Sun2:308.04:327.29:43-0.79:533.05:488:26Waxing Crescent3Sun
4Mon3:167.55:147.110:21-0.210:433.05:488:26Waxing Crescent4Mon
5Tue4:057.05:557.110:590.311:382.95:478:27Waxing Crescent5Tue
6Wed5:016.56:377.211:390.85:478:28First Quarter6Wed
7Thu6:056.07:207.312:392.712:241.35:478:28First Quarter7Thu
8Fri7:185.78:027.51:432.41:151.85:478:29First Quarter8Fri
9Sat8:315.68:427.72:441.82:082.35:478:29First Quarter9Sat
10Sun9:385.79:208.03:391.33:012.65:478:30Waxing Gibbous10Sun
11Mon10:416.09:588.24:290.73:532.95:478:30Waxing Gibbous11Mon
12Tue11:386.310:368.45:150.14:443.15:478:30Waxing Gibbous12Tue
13Wed12:306.55:58-0.35:333.25:478:31Waxing Gibbous13Wed
14Thu1:186.86:39-0.76:213.25:478:31Full Moon14Thu
15Fri2:037.07:20-1.17:083.15:478:32Full Moon15Fri
16Sat12:388.82:477.28:00-1.37:563.05:478:32Full Moon16Sat
17Sun1:238.83:287.38:40-1.48:452.85:478:32Waning Gibbous17Sun
18Mon2:118.64:107.59:22-1.39:362.65:478:32Waning Gibbous18Mon
19Tue3:038.34:517.710:05-1.010:322.45:478:33Waning Gibbous19Tue
20Wed4:017.75:357.910:50-0.511:332.25:488:33Waning Gibbous20Wed
21Thu5:077.16:218.211:390.25:488:33Third Quarter21Thu
22Fri6:236.57:118.412:421.812:330.95:488:33Third Quarter22Fri
23Sat7:466.28:028.71:541.31:331.65:488:33Third Quarter23Sat
24Sun9:076.18:538.93:020.62:352.15:498:34Waning Crescent24Sun
25Mon10:216.39:429.14:05-0.13:362.55:498:34Waning Crescent25Mon
26Tue11:276.610:329.15:01-0.64:352.85:498:34Waning Crescent26Tue
27Wed12:246.95:53-1.05:312.95:508:34New Moon27Wed
28Thu1:157.16:40-1.16:242.95:508:34New Moon28Thu
29Fri12:058.92:017.37:23-1.17:132.95:518:34New Moon29Fri
30Sat12:488.62:437.48:02-0.97:592.95:518:34New Moon30Sat
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 6:11 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 spring phase. Tonight's moon is 8% 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 Crescent (8% 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