Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 3:58 pm (3.8 ft)
Next high tide : in 5h 33m at 10:57 am (6.6 ft)
Sunset today : 7:50 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Gibbous (82% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Mar 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:158.411:147.03:363.14:34-1.16:406:01Waxing Gibbous1Sun
2Mon10:158.811:527.44:322.45:19-1.46:396:02Waxing Gibbous2Mon
3Tue11:109.05:231.66:01-1.46:386:03Full Moon3Tue
4Wed12:287.812:038.96:131.06:41-1.16:366:04Full Moon4Wed
5Thu1:028.112:568.67:020.47:21-0.66:356:05Full Moon5Thu
6Fri1:368.31:508.07:520.18:000.26:336:06Waning Gibbous6Fri
7Sat2:118.52:487.38:43-0.18:411.16:326:07Waning Gibbous7Sat
8Sun2:478.53:526.79:380.09:252.06:316:08Waning Gibbous8Sun
9Mon3:278.35:046.110:380.210:162.86:296:09Third Quarter9Mon
10Tue4:157.96:255.911:470.411:223.56:286:10Third Quarter10Tue
11Wed5:157.57:456.01:020.56:266:11Third Quarter11Wed
12Thu6:297.28:516.312:423.72:110.46:256:12Third Quarter12Thu
13Fri7:437.19:446.61:583.53:090.26:236:13Waning Crescent13Fri
14Sat8:477.210:276.93:013.13:580.06:226:14Waning Crescent14Sat
15Sun9:427.411:037.13:542.64:38-0.16:206:15Waning Crescent15Sun
16Mon10:297.511:357.24:402.15:130.06:196:16Waning Crescent16Mon
17Tue11:107.55:201.75:440.26:176:17New Moon17Tue
18Wed12:037.311:50 AM7.45:581.46:120.46:166:18New Moon18Wed
19Thu12:267.412:287.26:331.16:390.86:146:19New Moon19Thu
20Fri12:467.41:067.07:060.97:051.36:136:19New Moon20Fri
21Sat1:037.61:466.77:390.77:321.76:116:20Waxing Crescent21Sat
22Sun1:227.72:306.48:120.68:022.36:106:21Waxing Crescent22Sun
23Mon1:467.93:216.08:480.68:372.86:086:22Waxing Crescent23Mon
24Tue2:177.94:255.79:310.69:213.36:076:23Waxing Crescent24Tue
25Wed2:597.85:465.610:280.710:203.86:056:24First Quarter25Wed
26Thu3:547.57:085.711:430.711:434.06:046:25First Quarter26Thu
27Fri5:087.38:166.01:040.46:026:26First Quarter27Fri
28Sat6:357.39:096.41:093.72:120.06:016:27First Quarter28Sat
29Sun7:547.69:546.92:213.13:10-0.55:596:28Waxing Gibbous29Sun
30Mon9:037.910:337.43:222.34:00-0.75:586:29Waxing Gibbous30Mon
31Tue10:058.211:097.94:171.44:45-0.75:566:29Waxing Gibbous31Tue
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 1:27 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 82% 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 Waxing Gibbous (82% 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