Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 11:38 am (-0.1 ft)
Next high tide : in 3h 17m at 4:53 am (7.3 ft)
Sunset today : 8:33 pm
Sunrise tomorrow : 5:47 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Jul 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:406.65:57-0.75:293.75:518:34Waxing Gibbous1Sat
2Sun1:346.96:45-1.36:253.75:518:33Full Moon2Sun
3Mon2:247.17:32-1.67:183.55:528:33Full Moon3Mon
4Tue12:489.43:117.38:18-1.98:123.35:528:33Full Moon4Tue
5Wed1:419.33:567.59:04-1.89:063.05:538:33Waning Gibbous5Wed
6Thu2:379.04:397.79:49-1.610:022.75:548:33Waning Gibbous6Thu
7Fri3:358.45:227.910:34-1.011:022.45:548:33Waning Gibbous7Fri
8Sat4:387.76:058.111:20-0.35:558:32Third Quarter8Sat
9Sun5:476.96:508.412:072.112:080.55:558:32Third Quarter9Sun
10Mon7:056.37:368.61:181.71:001.45:568:32Third Quarter10Mon
11Tue8:266.08:228.72:281.11:562.25:578:31Third Quarter11Tue
12Wed9:436.09:088.83:330.52:542.85:578:31Waning Crescent12Wed
13Thu10:556.39:538.84:310.03:533.35:588:30Waning Crescent13Thu
14Fri11:566.610:388.75:23-0.44:493.65:598:30Waning Crescent14Fri
15Sat12:476.86:10-0.65:423.75:598:29New Moon15Sat
16Sun1:327.06:52-0.66:303.66:008:29New Moon16Sun
17Mon12:038.52:137.17:30-0.67:143.66:018:28New Moon17Mon
18Tue12:438.42:507.18:04-0.57:553.56:018:28New Moon18Tue
19Wed1:218.23:237.18:35-0.38:343.36:028:27New Moon19Wed
20Thu1:588.03:537.19:04-0.19:133.26:038:27Waxing Crescent20Thu
21Fri2:377.74:197.19:310.19:523.16:048:26Waxing Crescent21Fri
22Sat3:187.34:457.29:590.510:352.96:048:25Waxing Crescent22Sat
23Sun4:036.95:117.410:290.911:242.76:058:24Waxing Crescent23Sun
24Mon4:576.35:417.611:051.56:068:24First Quarter24Mon
25Tue6:075.86:197.912:222.511:47 AM2.26:078:23First Quarter25Tue
26Wed7:355.57:058.11:312.112:422.96:088:22First Quarter26Wed
27Thu9:035.67:588.42:401.51:503.56:088:21Waxing Gibbous27Thu
28Fri10:225.98:548.63:440.73:023.96:098:20Waxing Gibbous28Fri
29Sat11:296.49:538.94:430.04:113.96:108:20Waxing Gibbous29Sat
30Sun12:256.85:37-0.75:153.76:118:19Waxing Gibbous30Sun
31Mon1:137.26:27-1.36:123.46:128:18Full Moon31Mon
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 8:15 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 38% 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 (38% 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