Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Redwood City, CA.
Next low tide : in 3h 11m at 3:08 am (1.0 ft)
Next high tide : 9:23 am (5.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (63% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Apr 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:357.51:037.17:010.66:591.35:536:31Full Moon1Tue
2Wed12:567.51:436.97:340.57:291.75:516:32Waning Gibbous2Wed
3Thu1:177.62:256.78:070.58:022.15:506:33Waning Gibbous3Thu
4Fri1:437.63:126.48:420.58:402.45:486:34Waning Gibbous4Fri
5Sat2:167.64:066.29:230.59:252.85:476:35Waning Gibbous5Sat
6Sun2:587.55:126.010:140.610:223.25:456:36Third Quarter6Sun
7Mon3:527.36:246.111:180.611:353.35:446:37Third Quarter7Mon
8Tue5:027.17:306.312:310.55:436:38Third Quarter8Tue
9Wed6:247.08:276.812:543.11:400.35:416:38Third Quarter9Wed
10Thu7:427.29:167.22:042.52:400.05:406:39Waning Crescent10Thu
11Fri8:527.510:017.73:061.83:34-0.35:386:40Waning Crescent11Fri
12Sat9:557.810:428.14:021.04:24-0.35:376:41Waning Crescent12Sat
13Sun10:548.011:218.54:550.25:11-0.25:356:42New Moon13Sun
14Mon11:508.15:46-0.55:570.15:346:43New Moon14Mon
15Tue12:008.712:467.96:35-0.96:420.65:336:44New Moon15Tue
16Wed12:388.81:427.77:24-1.17:281.15:316:45Waxing Crescent16Wed
17Thu1:188.72:397.48:13-1.18:151.75:306:46Waxing Crescent17Thu
18Fri2:008.53:387.19:03-0.99:052.25:286:47Waxing Crescent18Fri
19Sat2:468.14:396.99:56-0.510:012.75:276:48Waxing Crescent19Sat
20Sun3:387.65:436.810:530.011:053.05:266:48First Quarter20Sun
21Mon4:397.06:466.811:550.35:256:49First Quarter21Mon
22Tue5:506.67:437.012:163.012:590.65:236:50First Quarter22Tue
23Wed7:036.58:337.21:252.71:560.75:226:51First Quarter23Wed
24Thu8:086.59:167.42:262.22:460.85:216:52Waxing Gibbous24Thu
25Fri9:066.69:547.63:191.63:300.95:196:53Waxing Gibbous25Fri
26Sat9:586.710:287.74:061.14:101.05:186:54Waxing Gibbous26Sat
27Sun11:466.811:587.85:480.75:461.26:177:55Waxing Gibbous27Sun
28Mon12:316.96:270.36:211.56:167:56Full Moon28Mon
29Tue12:257.81:146.97:040.16:551.86:157:57Full Moon29Tue
30Wed12:497.91:576.87:39-0.17:292.16:137:58Full Moon30Wed
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 6:15 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 63% 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 (63% 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