Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Redwood City, CA.
Next low tide : in 1h 21m at 2:05 am (1.4 ft)
Next high tide : 8:07 am (5.7 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 - Jan 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:417.03:516.910:273.010:380.57:235:01First Quarter1Fri
2Sat5:267.25:076.411:362.711:341.17:235:02First Quarter2Sat
3Sun6:147.66:366.112:512.17:235:03First Quarter3Sun
4Mon7:048.08:036.112:361.62:011.37:235:03First Quarter4Mon
5Tue7:548.59:206.31:402.03:040.47:235:04Waxing Gibbous5Tue
6Wed8:448.910:296.72:432.44:02-0.57:235:05Waxing Gibbous6Wed
7Thu9:359.311:297.13:432.64:56-1.27:235:06Waxing Gibbous7Thu
8Fri10:269.54:412.65:47-1.77:235:07Full Moon8Fri
9Sat12:247.411:17 AM9.55:362.66:35-1.97:235:08Full Moon9Sat
10Sun1:157.612:079.46:292.57:21-1.87:235:09Full Moon10Sun
11Mon2:037.712:579.17:212.48:06-1.57:235:10Waning Gibbous11Mon
12Tue2:487.71:488.68:122.48:49-1.07:235:11Waning Gibbous12Tue
13Wed3:327.72:418.09:052.39:31-0.47:225:12Waning Gibbous13Wed
14Thu4:157.63:377.210:012.310:140.37:225:13Waning Gibbous14Thu
15Fri4:587.64:396.611:012.210:591.17:225:14Third Quarter15Fri
16Sat5:437.65:516.012:072.17:215:15Third Quarter16Sat
17Sun6:297.67:065.81:151.77:215:16Third Quarter17Sun
18Mon7:157.78:185.912:462.32:171.27:215:17Third Quarter18Mon
19Tue8:007.89:236.11:432.73:110.77:205:18Waning Crescent19Tue
20Wed8:438.010:206.42:383.03:590.37:205:19Waning Crescent20Wed
21Thu9:258.111:096.73:303.14:42-0.17:195:20Waning Crescent21Thu
22Fri10:058.211:526.94:183.15:21-0.37:195:21Waning Crescent22Fri
23Sat10:448.35:033.15:57-0.57:185:22New Moon23Sat
24Sun12:327.011:21 AM8.35:443.06:31-0.67:185:23New Moon24Sun
25Mon1:097.011:57 AM8.36:242.87:03-0.77:175:25New Moon25Mon
26Tue1:437.012:348.37:022.77:36-0.67:165:26New Moon26Tue
27Wed2:147.11:138.17:412.58:09-0.57:165:27Waxing Crescent27Wed
28Thu2:447.11:557.88:222.48:44-0.27:155:28Waxing Crescent28Thu
29Fri3:147.32:457.49:092.29:220.27:145:29Waxing Crescent29Fri
30Sat3:497.43:446.810:022.110:070.97:135:30Waxing Crescent30Sat
31Sun4:317.64:596.211:081.911:001.67:135:31First Quarter31Sun
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 5:06 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