Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 5:49 am (-1.2 ft)
Next high tide (tomorrow) : in 54m at 10:05 pm (9.4 ft)
Sunset today : 8:31 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (10% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Dec 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:289.64:462.85:54-1.67:044:51Full Moon1Sat
2Sun12:347.211:16 AM9.75:393.06:44-1.97:054:50Full Moon2Sun
3Mon1:297.312:069.66:323.17:33-1.97:064:50Full Moon3Mon
4Tue2:237.312:589.37:263.08:22-1.67:074:50Waning Gibbous4Tue
5Wed3:147.31:538.88:223.09:11-1.27:084:50Waning Gibbous5Wed
6Thu4:047.42:528.19:212.910:00-0.67:094:50Waning Gibbous6Thu
7Fri4:547.43:577.410:242.810:500.17:104:50Third Quarter7Fri
8Sat5:437.65:096.711:332.511:420.87:114:50Third Quarter8Sat
9Sun6:327.86:266.212:452.07:114:50Third Quarter9Sun
10Mon7:178.07:426.012:361.41:521.47:124:50Third Quarter10Mon
11Tue8:008.28:536.11:302.02:510.87:134:50Waning Crescent11Tue
12Wed8:398.39:566.32:212.53:430.27:144:51Waning Crescent12Wed
13Thu9:168.410:516.53:112.94:29-0.27:144:51Waning Crescent13Thu
14Fri9:528.411:406.73:593.25:11-0.47:154:51Waning Crescent14Fri
15Sat10:278.44:443.45:49-0.67:164:51New Moon15Sat
16Sun12:256.911:01 AM8.35:273.56:25-0.67:164:52New Moon16Sun
17Mon1:066.911:35 AM8.36:073.56:59-0.67:174:52New Moon17Mon
18Tue1:456.912:098.26:453.57:31-0.57:184:52New Moon18Tue
19Wed2:216.812:448.17:233.48:02-0.47:184:53Waxing Crescent19Wed
20Thu2:556.81:227.98:023.48:33-0.37:194:53Waxing Crescent20Thu
21Fri3:276.82:047.68:443.29:06-0.17:194:54Waxing Crescent21Fri
22Sat3:596.92:527.29:313.19:430.37:204:54Waxing Crescent22Sat
23Sun4:337.13:516.610:262.910:260.87:204:55First Quarter23Sun
24Mon5:117.45:066.111:332.511:161.47:214:55First Quarter24Mon
25Tue5:547.86:375.712:461.97:214:56First Quarter25Tue
26Wed6:418.28:055.812:162.11:551.17:214:57First Quarter26Wed
27Thu7:318.69:256.01:212.62:590.27:224:57Waxing Gibbous27Thu
28Fri8:239.010:346.42:263.03:57-0.67:224:58Waxing Gibbous28Fri
29Sat9:179.311:336.83:303.24:52-1.37:224:59Waxing Gibbous29Sat
30Sun10:129.54:313.25:43-1.87:234:59Full Moon30Sun
31Mon12:267.111:06 AM9.65:273.06:31-2.07:235:00Full 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 1:57 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 spring phase. Tonight's moon is 10% 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 Waning Crescent (10% 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