Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 4:15 pm (3.7 ft)
Next high tide : in 3h 34m at 11:26 am (6.6 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waning Crescent (12% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - Sep 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:437.210:459.05:04-0.64:592.86:397:38Waxing Gibbous1Mon
2Tue12:247.75:52-0.95:552.16:407:36Full Moon2Tue
3Wed1:018.16:36-0.96:481.46:407:35Full Moon3Wed
4Thu12:409.01:378.57:17-0.77:380.86:417:33Full Moon4Thu
5Fri1:348.72:128.77:57-0.28:280.46:427:32Waning Gibbous5Fri
6Sat2:288.32:468.98:370.59:180.26:437:30Waning Gibbous6Sat
7Sun3:247.73:218.99:161.310:090.36:447:29Waning Gibbous7Sun
8Mon4:237.13:598.79:582.111:030.56:457:27Waning Gibbous8Mon
9Tue5:286.64:418.410:442.96:457:26Third Quarter9Tue
10Wed6:396.35:338.012:040.811:40 AM3.66:467:24Third Quarter10Wed
11Thu7:556.26:377.61:121.012:493.96:477:23Third Quarter11Thu
12Fri9:036.47:487.52:231.02:043.96:487:21Third Quarter12Fri
13Sat10:006.78:557.53:240.93:113.66:497:19Waning Crescent13Sat
14Sun10:477.09:537.64:160.74:083.26:507:18Waning Crescent14Sun
15Mon11:277.210:447.74:580.54:582.76:507:16Waning Crescent15Mon
16Tue12:017.45:350.55:422.26:517:15Waning Crescent16Tue
17Wed12:307.56:070.66:221.96:527:13New Moon17Wed
18Thu12:117.812:567.76:370.86:591.56:537:12New Moon18Thu
19Fri12:527.61:177.87:051.17:351.36:547:10New Moon19Fri
20Sat1:327.51:368.07:331.58:101.06:557:09New Moon20Sat
21Sun2:137.21:558.28:021.98:450.86:557:07Waxing Crescent21Sun
22Mon2:577.02:198.48:332.49:230.76:567:06Waxing Crescent22Mon
23Tue3:466.62:518.59:092.810:070.76:577:04Waxing Crescent23Tue
24Wed4:456.33:328.49:513.311:010.86:587:02Waxing Crescent24Wed
25Thu5:576.04:248.210:443.86:597:01First Quarter25Thu
26Fri7:206.05:328.012:090.811:56 AM4.17:006:59First Quarter26Fri
27Sat8:336.26:577.81:280.71:244.07:016:58First Quarter27Sat
28Sun8:336.77:227.91:390.31:443.56:015:56Waxing Gibbous28Sun
29Mon9:227.28:368.12:400.02:502.76:025:55Waxing Gibbous29Mon
30Tue10:047.79:418.33:32-0.23:501.86:035:53Waxing Gibbous30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414523)

Common Questions About Redwood City, CA Tides

Show All
What time does the tide turn (slack tide) in Redwood City, CA today?

Slack tide in Redwood City, CA is approximately 1:50 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 12% 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 (12% 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