Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 6:41 pm (3.4 ft)
Next high tide : in 1h 42m at 1:35 pm (7.0 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 6:10 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Aug 1972

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:336.45:358.711:171.96:138:16Third Quarter1Tue
2Wed7:005.96:298.812:471.212:152.76:148:15Third Quarter2Wed
3Thu8:315.87:328.82:030.81:263.36:148:14Third Quarter3Thu
4Fri9:536.18:388.93:160.32:433.66:158:13Waning Crescent4Fri
5Sat11:016.69:439.04:20-0.33:543.56:168:12Waning Crescent5Sat
6Sun11:567.010:449.05:17-0.74:583.26:178:11Waning Crescent6Sun
7Mon12:437.46:06-0.95:552.86:188:10New Moon7Mon
8Tue1:257.66:50-1.06:462.46:198:09New Moon8Tue
9Wed12:318.92:027.87:30-0.87:352.16:198:08New Moon9Wed
10Thu1:188.62:377.98:06-0.58:211.96:208:07New Moon10Thu
11Fri2:038.23:088.08:400.09:051.86:218:06Waxing Crescent11Fri
12Sat2:497.73:368.09:110.69:491.76:228:04Waxing Crescent12Sat
13Sun3:367.24:038.09:421.310:331.76:238:03Waxing Crescent13Sun
14Mon4:276.74:327.910:142.011:211.86:248:02Waxing Crescent14Mon
15Tue5:256.25:057.910:502.76:258:01First Quarter15Tue
16Wed6:345.85:487.712:171.811:35 AM3.36:257:59First Quarter16Wed
17Thu7:525.76:427.61:231.812:363.86:267:58First Quarter17Thu
18Fri9:055.97:457.62:301.51:514.16:277:57First Quarter18Fri
19Sat10:086.28:487.83:311.13:004.06:287:56Waxing Gibbous19Sat
20Sun11:016.59:458.04:230.74:013.76:297:54Waxing Gibbous20Sun
21Mon11:456.810:378.35:080.34:543.36:307:53Waxing Gibbous21Mon
22Tue12:227.15:47-0.15:422.96:317:52Waxing Gibbous22Tue
23Wed12:567.46:24-0.36:272.46:317:50Full Moon23Wed
24Thu12:118.61:267.77:00-0.37:111.96:327:49Full Moon24Thu
25Fri12:578.51:558.07:34-0.27:541.56:337:47Full Moon25Fri
26Sat1:438.42:238.38:100.18:401.16:347:46Waning Gibbous26Sat
27Sun2:338.02:548.78:470.69:270.86:357:45Waning Gibbous27Sun
28Mon3:287.53:298.99:261.310:200.76:367:43Waning Gibbous28Mon
29Tue4:306.94:108.910:092.011:190.76:367:42Waning Gibbous29Tue
30Wed5:436.45:008.811:012.86:377:40Third Quarter30Wed
31Thu7:086.16:028.612:290.712:053.46:387:39Third Quarter31Thu
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 4:08 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 99% 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 Full Moon (99% 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