Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 3:58 pm (3.8 ft)
Next high tide : in 1h 06m at 10:57 am (6.6 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Oct 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:376.87:347.11:560.91:553.76:035:53Waxing Gibbous1Wed
2Thu9:247.08:357.32:500.82:533.26:045:51Waxing Gibbous2Thu
3Fri10:037.39:287.43:340.73:432.66:055:50Waxing Gibbous3Fri
4Sat10:377.510:167.54:120.64:272.16:065:48Waxing Gibbous4Sat
5Sun11:077.611:007.54:460.75:071.76:075:47Full Moon5Sun
6Mon11:337.811:417.55:180.95:451.36:085:45Full Moon6Mon
7Tue11:557.95:481.26:201.06:095:44Full Moon7Tue
8Wed12:237.312:158.16:171.66:550.76:105:42Full Moon8Wed
9Thu1:057.112:358.36:482.17:300.56:115:41Waning Gibbous9Thu
10Fri1:516.91:008.57:212.58:080.46:125:39Waning Gibbous10Fri
11Sat2:416.61:338.67:583.08:500.36:125:38Waning Gibbous11Sat
12Sun3:406.42:138.58:423.59:420.46:135:37Waning Gibbous12Sun
13Mon4:506.23:058.29:363.910:460.56:145:35Third Quarter13Mon
14Tue6:096.14:127.910:484.26:155:34Third Quarter14Tue
15Wed7:206.45:367.612:030.512:144.16:165:32Third Quarter15Wed
16Thu8:186.87:047.61:160.31:333.56:175:31Third Quarter16Thu
17Fri9:067.38:207.82:180.12:402.66:185:30Waning Crescent17Fri
18Sat9:487.89:278.03:12-0.13:391.76:195:28Waning Crescent18Sat
19Sun10:268.310:278.04:000.04:320.86:205:27Waning Crescent19Sun
20Mon11:018.711:248.04:440.35:230.16:215:26New Moon20Mon
21Tue11:349.05:260.86:11-0.56:225:24New Moon21Tue
22Wed12:197.812:079.16:071.46:57-0.76:235:23New Moon22Wed
23Thu1:147.612:399.06:482.17:43-0.86:245:22Waxing Crescent23Thu
24Fri2:087.31:128.87:302.78:29-0.66:255:20Waxing Crescent24Fri
25Sat3:047.01:488.58:143.39:15-0.26:265:19Waxing Crescent25Sat
26Sun4:016.82:308.09:023.710:040.26:275:18Waxing Crescent26Sun
27Mon5:006.63:197.59:574.010:590.76:285:17First Quarter27Mon
28Tue6:026.54:227.011:024.16:295:16First Quarter28Tue
29Wed7:006.65:396.612:010.912:163.96:305:14First Quarter29Wed
30Thu7:516.86:566.51:011.11:253.56:315:13First Quarter30Thu
31Fri8:357.18:026.61:541.12:242.96:325:12Waxing Gibbous31Fri
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 1:27 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 82% 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 Gibbous (82% 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