Tides Today & Tomorrow in Redwood City, CA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Redwood City, CA.
Next low tide : 11:52 pm (1.7 ft)
Next high tide : in 13m at 4:56 pm (8.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:15 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #9414523
Common Questions About Tides

Redwood City, CA Tides - May 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:248.23:066.88:30-0.58:292.46:127:59Waxing Crescent1Mon
2Tue1:588.23:546.79:09-0.69:132.76:118:00Waxing Crescent2Tue
3Wed2:378.14:456.79:52-0.510:032.96:108:01Waxing Crescent3Wed
4Thu3:257.95:416.710:40-0.411:013.06:098:02Waxing Crescent4Thu
5Fri4:227.66:416.811:36-0.26:088:02First Quarter5Fri
6Sat5:317.27:407.012:092.912:400.06:078:03First Quarter6Sat
7Sun6:526.98:357.41:242.61:460.26:068:04First Quarter7Sun
8Mon8:136.89:257.82:352.02:480.36:058:05Waxing Gibbous8Mon
9Tue9:276.910:118.33:391.13:440.56:048:06Waxing Gibbous9Tue
10Wed10:357.110:548.64:380.34:380.76:038:07Waxing Gibbous10Wed
11Thu11:377.211:358.95:32-0.45:281.06:028:08Waxing Gibbous11Thu
12Fri12:357.36:22-1.06:171.46:018:09Full Moon12Fri
13Sat12:158.91:297.47:10-1.37:041.76:008:10Full Moon13Sat
14Sun12:548.92:227.47:56-1.47:502.15:598:10Full Moon14Sun
15Mon1:338.63:137.38:41-1.28:372.45:588:11Waning Gibbous15Mon
16Tue2:128.34:037.29:24-1.09:242.75:588:12Waning Gibbous16Tue
17Wed2:547.94:517.110:07-0.610:133.05:578:13Waning Gibbous17Wed
18Thu3:397.45:407.010:50-0.111:073.15:568:14Waning Gibbous18Thu
19Fri4:306.96:306.911:360.35:558:15Third Quarter19Fri
20Sat5:306.47:217.012:073.112:250.85:558:15Third Quarter20Sat
21Sun6:406.08:087.21:122.91:191.15:548:16Third Quarter21Sun
22Mon7:535.98:527.42:172.52:121.45:538:17Third Quarter22Mon
23Tue9:005.99:327.63:151.93:021.65:538:18Waning Crescent23Tue
24Wed10:016.110:087.94:061.33:491.85:528:19Waning Crescent24Wed
25Thu10:586.310:438.14:530.84:342.05:528:19Waning Crescent25Thu
26Fri11:516.511:168.25:370.35:192.25:518:20Waning Crescent26Fri
27Sat12:406.76:17-0.26:022.45:518:21New Moon27Sat
28Sun1:286.86:57-0.56:452.65:508:22New Moon28Sun
29Mon12:238.52:157.07:36-0.87:292.75:508:22New Moon29Mon
30Tue12:598.63:017.08:15-1.08:152.85:498:23New Moon30Tue
31Wed1:408.63:477.18:57-1.19:032.85:498:24Waxing Crescent31Wed
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 8:24 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 transitional phase. Tonight's moon is 64% 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 Third Quarter (64% 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