Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Redwood City, CA.
Next low tide (tomorrow) : in 6h 07m at 12:58 am (1.7 ft)
Next high tide (tomorrow) : 6:50 am (5.9 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (43% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jun 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:306.310:538.25:180.24:522.65:498:24Waxing Gibbous1Sat
2Sun12:206.56:00-0.25:352.85:488:25Waxing Gibbous2Sun
3Mon1:066.76:38-0.46:183.05:488:26Full Moon3Mon
4Tue1:506.87:15-0.66:593.15:488:26Full Moon4Tue
5Wed12:318.32:326.97:50-0.77:393.15:478:27Full Moon5Wed
6Thu1:058.33:126.98:24-0.78:213.15:478:27Full Moon6Thu
7Fri1:428.23:507.08:59-0.79:043.15:478:28Waning Gibbous7Fri
8Sat2:238.14:287.19:36-0.79:513.05:478:28Waning Gibbous8Sat
9Sun3:107.85:087.210:15-0.510:442.85:478:29Waning Gibbous9Sun
10Mon4:047.45:507.410:59-0.111:452.65:478:29Third Quarter10Mon
11Tue5:096.96:377.711:490.35:478:30Third Quarter11Tue
12Wed6:276.47:268.112:542.212:470.95:478:30Third Quarter12Wed
13Thu7:526.28:168.52:051.61:491.45:478:31Third Quarter13Thu
14Fri9:136.29:068.83:120.82:511.85:478:31Waning Crescent14Fri
15Sat10:286.49:569.24:140.03:522.25:478:31Waning Crescent15Sat
16Sun11:356.710:469.35:11-0.84:522.45:478:32Waning Crescent16Sun
17Mon12:357.06:04-1.35:492.55:478:32New Moon17Mon
18Tue1:307.36:54-1.66:432.65:478:32New Moon18Tue
19Wed12:259.32:217.57:41-1.77:362.65:478:33New Moon19Wed
20Thu1:139.03:087.68:26-1.58:282.55:488:33Waxing Crescent20Thu
21Fri2:018.73:537.79:09-1.29:192.55:488:33Waxing Crescent21Fri
22Sat2:508.24:357.79:50-0.710:102.55:488:33Waxing Crescent22Sat
23Sun3:417.65:167.710:29-0.211:032.55:488:33Waxing Crescent23Sun
24Mon4:347.05:577.711:090.55:498:34First Quarter24Mon
25Tue5:346.46:407.712:012.411:51 AM1.15:498:34First Quarter25Tue
26Wed6:416.07:237.81:032.212:391.85:498:34First Quarter26Wed
27Thu7:535.78:077.92:071.91:322.35:508:34First Quarter27Thu
28Fri9:035.88:508.03:061.42:272.75:508:34Waxing Gibbous28Fri
29Sat10:086.09:328.24:000.93:223.05:518:34Waxing Gibbous29Sat
30Sun11:076.210:138.34:490.54:143.25:518:34Waxing Gibbous30Sun
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 3:54 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 neap phase. Tonight's moon is 43% 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 minimum.

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 (43% illuminated). This places Redwood City, CA in a neap tide cycle, so tidal ranges are near their weekly minimum 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